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Tomcat i815ef S2425

User’s Manual

Revision 1.00

be reproduced or translated without prior written consent from TYAN Computer Corp.

All registered and unregistered trademarks and company names contained in this manual are

property of their respective owners including, but not limited to the following.

TYAN, Tomcat S2425 are trademarks of TYAN Computer Corporation.

Intel, Intel Pentium, i815, combinations thereof are trademarks of Intel Corporation.

AMI, AMIBIOS are trademarks of American Megatrends Inc.

Microsoft, Windows are trademarks of Microsoft Corporation.

IBM, PC, AT, PS/2 are trademarks of IBM Corporation.

Winbond is a trademark of Winbond Electronics Corporation.

Micronics is a trademark of Micronics Corporation.

Portable Document Format (PDF) is a trademark of Adobe Corporation.

Information contained in this document is furnished by TYAN Computer Corporation and has been

reviewed for accuracy and reliability prior to printing. TYAN assumes no liability whatsoever, and

disclaims any express or implied warranty, relating to sale and/or use of TYAN products including

liability or warranties relating to fitness for a particular purpose or merchantability. TYAN retains

the right to make changes to product descriptions and/or specifications at any time, without notice.

In no event will TYAN be held liable for any direct or indirect, incidental or consequential damage,

loss of use, loss of data or other malady resulting from errors or inaccuracies of information

contained in this document.

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Table of Contents

Before you begin…

Chapter 1: Introduction

1.1 Congratulations

1.2 Hardware Specifications

1.3 Software Specifications

Chapter 2: Board Installation

2.1 Front Panel Connector

2.2 CMOS Reset

2.3 Disabled/Enable LAN1

2.4 Disabled/Enable LAN2

2.5 Hard Drive activity LED

2.6 Flash Open Jumper

2.7 COM2 Connector

2.8 Chassis Intrusion Connector

2.9 USB Connector

2.10 Speaker Jumper

2.11 ACPI LED

2.12 Mounting the motherboard

2.13 Installing memory

2.14 Installing the CPU and Cooling Fan

2.15 Connecting IDE and Floppy Drives

2.16 Installing Add-in Cards

2.17 Connecting PS/2, USB, Serial

Devices

2.18 Connecting the power supply

2.19 You’re done!

Chapter 3: BIOS Setup

3.1 Standard CMOS Features

3.2 Advanced Setup

3.2d Bootup Settings

3.3 Chipset Configuration

3.3a CH Configuration

3.4 PnP/PCI Configuration

3.6 Power Configuration

Chapter 4: Installing the Hard Drives

Chapter 5: System Resources

5.1 Beep Codes

5.2 Flash Utility

Appendix : Glossary

Technical Support

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Before you begin…

Check the box contents!

The retail motherboard package should contain the following:

1x Tomcat i815ef motherboard

1x 34-Pin floppy drive cable

1x Ultra-DMA-100/66/33 IDE cable

1x Tomcat i815ef user’s manual

1x TYAN driver CD

1x I/O shield plate with dual LAN ports

If any of these items are missing, please contact your vendor/dealer for replacement before

continuing with the installation process.

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Chapter 1: Introduction

1.1 Congratulations!

You are now the owner of the TYAN Tomcat i815ef motherboard. The TYAN Tomcat i815ef

provides leading edge features and performance for systems based on the Flex ATX form factor.

Utilizing the Intel 815e (B-Step) chipset, this system board supports Intel’s Celeron, Pentium III as

In addition to flexible processor support, the Tomcat i815ef features dual LAN ports, perfect for

supporting simultaneous connections to a network and a broadband communications device. This

platform also features two DIMM sockets, two PCI slots, dual-channel UltraDMA-100, USB and

more! *Please see TYAN’s website for updates and information concerning CPU information and

support:

http://www.TYAN.com

While the Tomcat i815ef is designed to fit into tight quarters, it also offers expansion options via

two PCI slots. However, with all critical devices and tool built onboard already, the Tomcat i815ef

cuts down on costs as well as time.

Remember to visit TYAN’s Website at http://www.tyan.com. There you can find information on all

of TYAN’s products with FAQs, distributors list and BIOS setting explanations.

1.2 Hardware Specifications

Processor

• Single PGA370 ZIF sockets

• Supports one Intel Celeron or Pentium III

processor, including the new Tualatin CPU

• SDR bus support for 133MHz

• Integrated VRM (VRM 8.5 spec)

Chipset

• Intel i815e (B-Step) Chipset

• National PC87366 Super I/O ASIC

Memory

• Two 3.3v 168-pin DIMM sockets

• Supports up to 512MB of unbuffered PC133

SDRAM (only)

Expansion Slots

• 2 32-bit/33MHz PCI bus mastered slots (5V)

Integrated PCI IDE

• Two 40-pin IDE connectors for up to 4

devices

• PIO mode 3, 4, UltraDMA 33/66/100 support

• ATAPI, HDD, CDROM device support

Integrated LAN

• Two Intel 10/100 LAN controllers (per

controller)

• One via 82599 controller and one via Intel’s

ICH2 (8252EM)

Integrated 2D/3D Graphics

• Onboard Intel 815e graphics accelerator

• Standard 15-pin analog VGA out

BIOS

• AMI 4Mb BIOS Flash ROM

• Fully Plug-and-Play

• APM 1.2/ACPI 1.0/PC99 compliant

• DMI 2.0 compliant

• Soft Power Down

• Multiple boot options

Form Factor

• Flex ATX footprint (9” x7.5”

228.6mmx190.5mm)

• One 20-pin ATX power connector

• Stacked USB (two) ports

• Stacked keyboard and mouse ports

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Integrated I/O

• One floppy connector supports up to two

drives

• Two 9-pin 16550-based serial ports

• One 25-pin SPP/ECP/EPP parallel port

• One IR Tx/Rx header

• 2 USB ports (additional via optional cable)

• PS/2 keyboard and mouse ports

Regulatory

• FCC DoC (declaration of Conformity)

• European Community of CE (declaration of

Conformity)

1.3 Software Specifications

OS Windows 9x/ME/NT/2000

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Chapter 2: Board Installation

Installation

You are now ready to install your motherboard. The mounting hole pattern of the Tomcat i815ef

matches the ATX system board specifications. Your chassis should support a standard ATX

motherboard form factor.

How to install our products right… the first time

The first thing you should do is read this user’s manual. It contains important information which will

make configuration and setup much easier. Here are some precautions you should take when

installing your motherboard:

(1) Ground yourself properly before removing your motherboard from the antistatic bag.

Unplug the power from your computer power supply and then touch the power supply.

For the safest conditions, Tyan recommends wearing a static safety wrist strap.

(2) Hold the motherboard by its edges and do not touch the bottom of the board.

(3) Avoid touching the motherboard components, IC chips, connectors, and leads.

(4) Avoid touching memory module contacts and IC chips

(5) Place the motherboard on a grounded antistatic surface or on the antistatic bag from

which it came in.

Having reviewed the precautions above, the next step is to take the motherboard out of the

cardboard box and static bag, hold it by its edges and place it on a grounded antistatic surface,

component side up. Inspect the board for damage.

NOTE DO NOT APPLY POWER TO THE BOARD IF IT HAS BEEN DAMAGED

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2.1 – Jumper Section

Pin outs for certain connectors are available on the Tyan website: http://www.tyan.com

2.1a Front Panel Connector (J15)

Your chassis will usually come with connectors to install onto the motherboard, such as HDD and

Power LEDs. The Front Panel Connector (J80) has been implemented for such purposes.

17 15 13 11 9 7 5 3 1

18 16 14 12 10 8 6 4 2 1,3: HD LED

2,4: Power LED

5,7: Reset Switch

6,8: Power Switch

11-17: Infra Red (IR) On/Off

2.6b – CMOS Reset (JP1)

1 2 3 1,2: Connect these two pins together to reset the CMOS settings in case an

incorrect setting causes system instability or you have forgotten your system/setup

password of have just flashed your BIOS.

- Power off the system and disconnect the power supply.

- Close pins 2 and 3 on JP1

- Wait about 5 seconds

- Close pins 1 and 2 on JP1

- Reconnect the power supply and power on the system

2.6c – Disable/Enable LAN1 (JP5)

1 2 Closed (default): LAN1 port is disabled.

Open: LAN1 port is enabled.

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2.6d – Disable/Enable LAN2 (JP4)

Closed (default): LAN1 port is disabled.

Open: LAN1 port is enabled.

2.6e – Hard drive activity LED (J12)

Use this jumper to connect your chassis’ hard drive LED.

2.6f – Flash Open (JP2)

1 2 Closed (default): Allows you to upgrade the onboard CMOS

Open: Prevents onboard CMOS from being upgraded

2.6g – COM2 connector (PJ2)

This connector allows you to use the supplied serial extension cable if you need to use more than

1 serial devices.

2.6h – Chassis Intrusion header (J7) [optional]

1 2 Use these connectors if your chassis has intrusion detection, otherwise, leave it as is.

2.6i–USB connector (J18)

This connector allows you to use your chassis’ front panel USB connector if it comes with one.

If 3 and 4 are connected (default), the motherboard will use the onboard speaker for

audio related purposes. If 3 and 4 are not connected, you may use you chassis’

internal speaker. Either one will be fine.

2.6k –ACPI LED (J33)

Use this connector if your chassis has front LEDs for notification for sleep or suspend

modes.

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2.7 Mounting the motherboard

Your chassis may include mounting hardware. If mounting hardware was included, you can use

the following examples to help you in stalling your motherboard into the chassis.

If your chassis has the studs integrated into the chasses wall, then you would only need to use

screws (possibly included with your chassis) to install the motherboard. See examples (Figure 2.0,

shown below for more details.

If the chassis includes mounting hardware without the studs pre-installed, then you will need to

install the motherboard using the mounting hardware as shown in the examples below.

Remember not to over tighten any of the screws, or you may risk breaking internal traces in the

surrounding area, or damage the motherboard in some other way.

Other examples of how to install your motherboard using other hardware (that may or may not

have been included with your chassis) are shown below.

One solution for installing motherboardType of hardware Another solution

NOTE The diagrams above are only representative of a few solutions for installing a

motherboard into the chassis. The installation procedure for installing your

motherboard into the chassis may differ.

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2.8 Installing Memory

Please keep in mind that although some memory modules may appear to be high-quality, they

may contain inferior or substandard parts. The type of memory you choose to install should be

checked against the memory compatibility list, which is available from Tyan’s website at

http://www.tyan.com.

Here are some details of memory installation for this board:

- At least one SDRAM DIMM must be installed for the system to POST.

- Supports 128MB, 256MB, and 512MB PC133/100 SDRAM.

- All installed memory will be automatically detected.

- The motherboard supports up to 512MB of PC133 unregistered/unbuffered SDRAM

memory.

Memory Installation Procedure

Step1: Line your module up so that the pins fit into the socket. There is only one way your DIMM

can fit properly. Make sure that the short row of pins is lined up with the short gap in the DIMM

socket, just as the long row of pins should line up with the long gap in the DIMM socket.

Step2: Insert the DIMM by pushing the module into the socket with even force Do not insert one

end and then the other: install the whole module at once or you might bend the DIMM pins. Make

sure the DIMM is securely seated.

NOTE Your memory modules may not look like those in the above diagram; they are

used simply as examples.

Look the DIMM into place by pushing the clips back on either end of the socket onto the notches

in the ends of the DIMM (see pictures above details).

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Removing a DIMM

Removing a DIMM is just the reverse: pull back the clips from the DIMM (see pictures on previous

page), and carefully pull the module straight out. Place the DIMMs in an anti-static bag as soon as

you remove them to avoid static damage.

1 2

2.9 Installing the CPU and Cooling Fan

Intel Pentium III processors up to 1.13GHz can be used on this board. For more information on

CPU compatibility, check Tyan’s website at http://www.tyan.com/

When installing your CPU, remember the following:

- The CPU is a sensitive electronic component and can easily be damaged by static

electricity

- Do not touch the CPU pins with your fingers

- You should be able to insert the CPU into the socket with virtually no force

- Do not press down hard on the CPU as you might bend or break pins, or otherwise

damage the CPU.

- The CPU voltage will automatically be detected by the motherboard, so there is not

need to set any jumpers or BIOS setting.

Installing the CPU

Before installing the CPU, check it for any visible damage. Make sure none of the pins are bent or

missing. Be sure where Pin 1 is on both the CPU and the socket. The following steps each have

corresponding picture next to it to help guide you through the installation.

Careful lift the arm of the ZIF socket until it is at 90 degree angle pointing away from the

motherboard. Be very careful not to damage any components that might be next the socket.

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There are two beveled corners on the CPU, which will match the two angled corners on the

socket. Careful install the CPU by lining both Pin 1 on the CPU and Pin 1 on the socket, making

sure the pins actually fit into the socket. Do not force the CPU into the socket: check the pin

alignment of the CPU pins to socket holes.

Push down lightly on the CPU while lowering the arm on the socket to secure the CPU (see right).

A squeaking noise may be heard while lowering the arm or the socket may make a ‘click’ noise

when the arm is locked into position: these noises are normal.

Installing the Cooling Fans

After a CPU has been installed, you will need to install the proper cooling device for the CPU. This

device, a heatsink/fan combination can be purchased at many computer retail stores. Installation

of the cooling device may vary depending on the fan manufacturer’s design. You should also take

space into consideration when installing a cooling device: make sure the cooling device is not too

big, or else you may end up damaging components around the CPU socket.

Tyan highly recommends that you use a thin

layer of some type of thermal compound

(available from many computer retail stores),

between the CPU and the heatsink, to

maximize distribution of heat away from the

CPU. Please use extra caution when installing

any type of clamp-style fan, or else damage

may occur to the CPU socket and or the CPU

itself.

NOTE The FAN connector has a 12V, 0.30A limitation. Tyan takes no responsibility and

will not be held liable for damage related to the misuse of any FAN jumper.

Alternatively, if you wish to also install chassis fans for increased cooling, headers are provided to

power those fans as well. Chassis fan installation will vary depending on your chassis

manufacturer’s design. Please check with your chassis manufacturer for details on proper chassis

fan installation.

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2.10 Connecting IDE and Floppy Drives

A variety of IDE and ATAPI-compliant devices can be

installed on this motherboard, such as hard disk drives

(HDDs) and CD-ROMs.

Please keep in mind that on this motherboard, the

primary IDE connector is BLACK, and the secondary

IDE connector is WHITE. See the picture to the rightfor

an example of the IDE cable properly connected to the

motherboard, with the BLUE end of the IDE cable

installed on the motherboard.

Pin 1 on the IDE cable is usually denoted by a red or

colored stripe down one side of the cable. That side of

the cable must match Pin 1 on the motherboard’s IDE

connector. There will also be a key pin on the cable that

matches with a notch in the IDE connector, to ensure

proper installation. Consult the documentation that

came with your IDE/ATAPI device, or contact the

device’s manufacturer for more details on installation.

Please note that UltraDMA-100/66 IDE HDDs require a

special 80-wire cable (see picture at right), which has

additional grounding wires. This cable has been

included with this motherboard for your convenience.

The UltraDMA-100/66 cable is backwards compatible

with UltraDMA-33 and legacy IDE HDDs.

BLUE end goes to IDE connector

Pin 1

NOTE

Only Tyan-approved cables are recommended for this motherboard. If you are

using an existing configuration with older cables, your system might not function

properly. Use only Tyan-approved cables (i.e. the ones included with your new

motherboard).

Some symptoms of incorrectly installed HDDs are...

May be a Master/Slave configuration problem, bad

IDE cable, or BIOS mis-configuration. Consult the

HDD documentation or contact your HDD vendor.

May be a bad cable or lack of power going to the

drive. Check the cables for damage and bad con-

nections.

Usually means the cable was installed backwards.

Bad IDE cable or defective drives/motherboard. Try

another HDD, or contact your HDD vendor.

Check power cables and cabling. May be a bad

power supply or IDE drive problem.

HDD lights are constantly on

HDDs are not auto-detected

No video or beeps during bootup

HDD does not power on

Hard Disk Drive Fail message at bootup

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Connecting Floppy Drives

See the picture below for an example of a floppy cable. Most of the current floppy drives on the

market require that the cable be installed with the colored stripe positioned next to the power

connector. In most cases, there will be a key pin on the cable which will force a proper connection

of the cable.

The first floppy drive (sometimes denoted as A:) is

usually attached to the end of the cable with the twist

in it. Drive B: is usually connected to the second or

third connector in the cable (the second or third

connector after you install Drive A:). Refer to your

floppy drive’s installation instructions (if available), or

contact your dealer if you are unsure about how to

attach the floppy drive(s). Remember, you can only

have 2 floppy drives connected at any given time.

Figure 2.

3.5” connector

5.25” connector Colored stripe

indicates Pin 1

Drive B:Drive A: Colored stripe

indicates Pin 1

Match striped side with Pin 1

Usually caused by faulty cables, cables put in back-

wards, or a bad floppy or motherboard. Try another

floppy drive to verify the problem or try another

cable. Also check to see if the onboard floppy is

enabled in the BIOS.

The cable, floppy, or motherboard may be faulty. Try

another cable or floppy drive to verify.

Usually signifies that the cable is on backwards.

Reverse the cable at the floppy drive end and try

again.

Check power cables and cabling. May be a bad

power supply or IDE drive problem.

FDD light is constantly on

FDDs are not auto-detected

FDD does not power on

Floppy Drive Fail message at bootup

Some symptoms of incorrectly installed FDDs are...

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2.11 Installing Add-in Cards

There are a few rules you need to follow when installing add-on cards. In order to assure proper

operation and a quick installation, adhere to the following guidelines:

- If you are going to install a PCI-bus interface card on your system, be aware that any one of the

five PCI slots can support a Master or Slave device.

- ALWAYS make sure the power supply is disconnected.

- NEVER force a card into a slot. If it won’t fit properly, look at the socket on the motherboard to

make sure there are no wires or other obstructions to the slot. Damage may occur otherwise.

- NEVER plug an ISA card into a PCI slot. You will void your warranty, and you will damage your

system board if you try to do this.

- When plugging the card in, especially when installing long cards, try to push the entire card in at

one time. Don’t force one end of the card into the socket first and then the other, or a rocking

motion between the card and the slot might occur, and could damage the pins within the socket.

- Make sure the cards are seated securely into their slots.

- Before turning on the system, make sure no cards are touching.

- Check the PCI device specifications with the PCI slot specifications BEFORE installing!

When installing the add-on cards, make sure the cards are installed with even force; do not insert

one end and then the other. See the before (Figure 2.1a) and after (Figure 2.1b) example

installation images below for details.

Figure 2.1a:

Then insert the expansion card as follows:

Figure 2.1b:

NOTE *Your PCI slot may not look like those in the above diagrams; they are used

simply as examples.

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2.12 Connecting PS/2, USB, and Serial Devices

This motherboard includes ports for PS/2 mouse and keyboard, Universal Serial Bus (USB)

devices, and serial and parallel devices. Please note that the upper PS/2 port is the mouse port,

and the lower PS/2 port is for the keyboard (see Figure 2.3 below).

Installation of peripheral/external devices may vary. For details on installation of devices into the

various ports shown below, please consult your device’s documentation, device manufacturer, or

your dealer for details.

Connecting Serial and Parallel Ports

The serial and parallel ports can be used to connect various devices such as a mouse or printer.

The connectors can only be connected one way: be sure and check the orientation of the

connector before installing it into the port.

NOTE On some Tomcat 2425 models, the ATX I/O stack may not look like the diagram

above because some of the features are optional, it is only used for example

purposes.

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2.13 Connecting the power supply*

This motherboard requires the following:

• ATX power supply, one that conforms to ATX standard 2.01 or better.

The clip on the power connector should lock over the tab on the onboard connector. You shouldn’t

be able to plug the power connector in any other way but just to be safe, make sure it looks like

Figure 2.4b. Make certain that you do not miss connecting any of the pins because if you do, you

will void your warranty and possibly cause damage to yourself and/or your motherboard when the

power is turned on. After connecting the power, make sure the connector is seated firmly into its

socket so it will not become loose or fall off when the computer is jostled or moved.

Step 1: Shown on the right, in Figure 2.4a, is

the 20-pin connector of the ATX power supply.

Note the clip in the image: it will help you install

the plug correctly.

Step 2: Shown on the right, in Figure 2.4b, is

the 20-pin connector plugged into the board*.

The clip is over the TAB of the onboard

connector.

When you connect the cable into the

motherboard’s 20-pin onboard connector, it will

make a CLICK noise as it is installed.

This is normal.

Figure 2.4b**

Note the TAB

NOTE Your ATX power connector may not look like those in the above diagram; they

are used simply as examples.

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2.14 You are done!

Other than checking the jumper settings and cable connections, and putting the case back

together, you are done.

Installing a new motherboard may seem difficult, but by following these directions, you should

have a fairly uneventful time installing our products. If you do encounter problems, your

vendor/dealer will be able to help you, or you can consult one of our many technical support

options such as our website and or technical support line.

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Chapter 3: BIOS Setup

Introduction to the BIOS setup

The BIOS is the basic input/output system, required by the computer to perform functions such as

CPU and hard drive support. This chapter describes different settings for the BIOS that can be

used to configure your system.

The BIOS section of the manual is subject to change without notice and is provided here for

reference purposes only. The settings and configurations of the BIOS are current at the time of

print, and therefore they may not be exactly the same as that displayed on your screen.

This manual describes the BIOS setup program. The setup program lets you modify basic

configuration settings. The settings are then stored in a dedicated battery-backed memory, called

NVRAM, that retains the information when the power is turned off.

The BIOS in your motherboard is a customized version of industry-standard BIOS for IBM PC AT-

compatible personal computers. It supports Intel x86 and compatible processors. The BIOS

provides critical low-level support for the system central processing, memory, and I/O subsystems.

The BIOS has been customized by adding important, but non-standard, features such as virus

and password protection, power management, and detailed fine-tuning of the chipset controlling

the system. The rest of this manual is intended to guide you through the process of configuring

your system using this BIOS setup program.

Starting Setup

The BIOS is immediately activated when you first turn on the computer. The BIOS reads system

configuration information in CMOS RAM and begins the process of checking out the system and

configuring it through the Power-On Self Test (POST).

When these preliminaries are finished, the BIOS will seek an operating system on one of the data

storage devices (HDD, floppy drive, etc.) If one is found, the BIOS will launch that operating

system and hand control of system operations to it. You can start the setup program by pressing

the [F2] key while the system is booting up.

Setup Keys

The table below shows how to navigate in the setup program using the keyboard.

Key Function

Tab Moves from one selection to the

Left/Right Arrow Keys Change from one menu to the

Up/Down Arrow Keys Move between selections

Enter Opens highlighted selection

PgUp/PgDn Keys Change highlighted selection

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Getting Help

Press F1 to display a small help window that describes the appropriate keys to use and the

possible selections for the highlighted item. To exit the Help Window, press ESC or the F1 key

again.

In Case of Problems

If you discover that you have trouble starting the computer after making and saving changes with

the BIOS setup program, you can restart the computer by either:

Ø Holding the Power button down until the machine turns off.

The best advice is to alter only settings that you thoroughly understand. In particular, do not

change settings in the Chipset section unless you’re absolutely sure you need to. The Chipset

defaults were carefully chosen by Tyan and or your system manufacturer for the best performance

and reliability. Even a seemingly small change to anyone of the Chipset options without

consideration, can cause your system to become unstable immediately or progressively.

Setup Variations

Not all systems have the same setup program. While the basic look and function of the setup

program remains more or less the same for all systems, the appearance of your Setup options

may or may not follow the same order listed in this manual. In addition, the final layout of all Setup

options depends on your system designer. They can decide that certain items that are listed in the

following pages remain hidden from user alteration.

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4.0 Installing the hard drives

Hard drives must be of the Fast ATA-2, EIDE, or UltraDMA-33/66/100 type. For best performance,

we recommend that you use drives of identical model and capacity. By matching drives, you

ensure compatibility as well. If you are planning to use an UDMA-66 or 100 drive, you must use an

UltraDMA-66/100 cable (Tyan has included that cable with the motherboard).

Step 1: The first step is to set the hard drive to Master, Slave, or Cable Select setting, and install

them according to the table below. Note: Sometimes the Master drive with no Slave attached is

called “single”. The Master/Slave setting differentiates two drives connected on the same cable.

NOTE: Check your HDD documentation for master, slave, and cable select settings.

Jumper Settings (see your HDD documentation for jumper settings)

# of Drives IDE Channel 1 IDE Channel 2

1M-

2M M

3M & S M

4M & S M & S

M=Master, S=Slave

Step 2: Next, you should install the drives into your

system, and connect the power. Attach one UltraDMA

cable (black connector) to each drive (if you have a Slave

drive, connect that drive to the second connector (grey

connector) on the UltraDMA cable). Make sure that Pin 1

on the cable (indicated by the colored stripe) is connected

to Pin 1 of the hard drive. See Figure I-1 (to the right) for

an example.

Step 3: The blue end of the cable (see Figure I-2 to the

right for an example) goes to the Primary or Secondary

connector on the motherboard (see p. 7 for location). Make

sure Pin 1 of the ATA-100/66 cable connects to Pin 1 of the

Primary IDE connector (see p. 7 for location). Check all

connections after completing this step, before you continue

to the next part of the installation.

Figure I-2

Blue end of the

ATA-66/100 cable

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Chapter 5: System Resources

Note: if you experience problems with setting up your system, always check the following things in

the following order:

Memory, Video, CPU

By checking these items, you will most likely find out what the problem might have been when

setting up your system. For more information on troubleshooting, check the Tyan website at:

http://www.tyan.com.

5.1 Beep Codes

Fatal errors, which halt the boot process are communicated through a series of audible beeps. For

example, if the BIOS POST can initialize the video but an error occurs, an error message will be

displayed. If it cannot display the message, it will report the error as a series of beeps.

If you hear one long beep followed by two short beeps, then a video problem has probably

occurred and the BIOS is having difficulty initializing the video display. Any other beep sequences

that may or may not occur are probably due to memory problems. If calling Tyan Tech Support, be

sure that you know how many beeps your board made, and how long the beeps were. Also have

other information such as your attached add-in cards, drives and OS to help speed up the support

process and come to a possible solution faster.

5.2 Flash Utility

Every BIOS file is unique for the motherboard it was designed for. For Flash Utilities, BIOS

downloads, and information on how to properly use the Flash Utility with your motherboard, you

must check the Tyan website: http://www.tyan.com/

NOTE

Please be aware that by flashing your BIOS, you agree that in the even of a BIOS

flash failure, you must contact your dealer for a replacement BIOS. There are no

exceptions. Tyan does not have a policy of replacing BIOS chips directly with end

users. In no even will Tyan be held responsible for damage done to the BIOS by the

end user.

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Appendix: Glossary

ACPI (Advanced Configuration and Power Interface): a power management specification that

allows the operating system to control the amount of power distributed to the computer’s devices.

Devices not in use can be turned off, reducing unnecessary power expenditure.

AGP (Accelerated Graphics Port): a PCI-based interface which was designed specifically for

demands of 3D graphics applications. The 32-bit AGP channel directly links the graphics controller

to the main memory. While the channel runs at only 66 MHz, it supports data transmission during

both the rising and falling ends of the clock cycle, yielding an effective speed of 133 MHz.

ATAPI (AT Attachment Packet Interface): also known as IDE or ATA; a drive implementation

that includes the disk controller on the device itself. It allows CD-ROMs and tape drives to be

configured as master or slave devices, just like HDDs.

ATX: the form factor designed to replace the AT form factor. It improves on the AT design by

rotating the board 90 degrees, so that the IDE connectors are closer to the drive bays, and the

CPU is closer to the power supply and cooling fan. The keyboard, mouse, USB, serial, and

parallel ports are built-in.

Bandwidth: refers to carrying capacity. The greater the bandwidth, the more data the bus, phone

line, or other electrical path, can carry. Greater bandwidth, then, also results in greater speed.

BBS (BIOS Boot Specification): is a feature within the BIOS that creates, prioritizes, and

maintains a list of all Initial Program Load (IPL) devices, and then stores that list in NVRAM. IPL

devices have the ability to load and execute an OS, as well as provide the ability to return to the

BIOS if the OS load process fails for some reason. At that point, the next IPL device is called upon

to attempt loading of the OS.

BIOS (Basic Input/Output System): the program that resides in the ROM chip, and provides the

basic instructions for controlling your computer’s hardware. Both the operating system and

application software use BIOS routines to ensure compatibility.

Buffer: a portion of RAM which is used to temporarily store data, usually from an application,

though it is also used when printing, and in most keyboard drivers. The CPU can manipulate data

in a buffer before copying it, all at once, to a disk drive. While this improves system performance --

- reading to or writing from a disk drive a single time is much faster than doing so repeatedly ---

there is also the possibility of losing your data should the system crash. Information stored in a

buffer is temporarily stored, not permanently saved.

Bus: a data pathway. The term is used especially to refer to the connection between the

processor and system memory, and between the processor and PCI or ISA local buses.

Bus mastering: allows peripheral devices and IDEs to access the system memory without going

through the CPU (similar to DMA channels).

Cache: a temporary storage area for data that will be needed often by an application. Using a

cache lowers data access times, since the needed information is stored in the SRAM instead of in

the slow DRAM. Note that the cache is also much smaller than your regular memory: a typical

cache size is 512KB, while you may have as much as 4GB of regular memory.

Cache size: refers to the physical size of the cache onboard. This should not be confused with

the cacheable area, which is the total amount of memory which can be scanned by the system in

search of data to put into the cache. A typical setup would be a cache size of 512KB, and a

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cacheable area of 512MB. In this case, up to 512KB of the main memory onboard is capable of

being cached. However, only 512KB of this memory will be in the cache at any given moment.

Any main memory above 512MB could never be cached.

Closed and open jumpers: jumpers and jumper pins are active when they are “on” or “closed”,

and inactive when they are “off” or “open”.

CMOS (Complementary Metal-Oxide Semiconductors): chips that hold the basic startup

information for the BIOS.

COM port: another name for the serial port, which is called as such because it transmits the eight

bits of a byte of data along one wire, and receives data on another single wire (that is, the data is

transmitted in serial form, one bit after another). Parallel ports transmit the bits of a byte on eight

different wires at the same time (that is, in parallel form, eight bits at the same time).

DDR (Double Data Rate): is a technology designed to double the clock speed of the memory. It

activates output on both the rising and falling edge of the system clock rather than on just the

rising edge, potentially doubling output.

DIMM (Dual In-line Memory Module): faster and more capacious form of RAM than SIMMs, and

do not need to be installed in pairs.

DIMM bank: sometimes called DIMM sockets, because the physical slot and the logical unit are

the same. That is, one DIMM module fits into one DIMM socket, which is capable of acting as a

memory bank.

DMA (Direct Memory Access): channels that are similar to IRQs. DMA channels allow hardware

devices (like soundcards or keyboards) to access the main memory without involving the CPU.

This frees up CPU resources for other tasks. As with IRQs, it is vital that you do not double up

devices on a single line. Plug-n-Play devices will take care of this for you.

Doze mode: in this mode, only the CPU’s speed is slowed.

DRAM (Dynamic RAM): widely available, very affordable form of RAM which has the unfortunate

tendency to lose data if it is not recharged regularly (every few milliseconds). This refresh

requirement makes DRAM three to ten times slower than non-recharged RAM such as SRAM.

ECC (Error Correction Code or Error Checking and Correcting): allows data to be checked for

errors during run-time. Errors can subsequently be corrected at the same time that they’re found.

EEPROM (Electrically Erasable Programmable ROM): also called Flash BIOS, is a ROM chip

which can, unlike normal ROM, be updated. This allows you to keep up with changes in the BIOS

programs without having to buy a new chip. Tyan’s BIOS updates can be found at

http://www.tyan.com

ESCD (Extended System Configuration Data): a format for storing information about Plug-n-

Play devices in the system BIOS. This information helps properly configure the system each time

it boots.

Fault-tolerance: a term describing a system where one component can quickly be replaced

without causing a loss of service, such as in a RAID system.

Firmware: low-level software that controls the system hardware.

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Form factor: an industry term for the size, shape, power supply type, and external connector type

of the Personal Computer Board (PCB) or motherboard. The standard form factors are the AT and

ATX, although Tyan also makes some Baby-AT and ATX Footprint boards.

Global timer: onboard hardware timer, such as the Real-Time Clock (RTC).

Handshaking: a form of encryption. One system, typically the server, sends an encryption

scheme to another agent, typically a client. Thus, the client’s data is protected during transmittal to

the server.

HDD: stands for Hard Disk Drive, a type of fixed drive.

H-SYNC: controls the horizontal synchronization/properties of the monitor.

IC (Integrated Circuit): the formal name for the computer chip.

IDE (Integrated Device/Drive Electronics): a simple, self-contained HDD interface. It can handle

drives up to 8.4 GB in size. Almost all IDEs sold now are in fact Enhanced IDEs (EIDEs), with

maximum capacity determined by the hardware controller.

IDE INT (IDE Interrupt): a hardware interrupt signal that goes to the IDE.

I/O (Input/Output): the connection between your computer and another piece of hardware

(mouse, keyboard, etc.)

Initial Program Load (IPL): a feature built into BBS-compliant devices, describing those devices

as capable of loading and executing an OS, as well as being able to provide control back to the

BIOS if the loading attempt fails.

IPL: see Initial Program Load.

IRQ (Interrupt Request): an electronic request that runs from a hardware device to the CPU. The

interrupt controller assigns priorities to incoming requests and delivers them to the CPU. It is

important that there is only one device hooked up to each IRQ line; doubling up devices on IRQ

lines can lock up your system. Plug-n-Play operating systems can take care of these details for

you.

ISA (Industry Standard Architecture): a slower 8- or 16-bit bus (data pathway).

Latency: the amount of time that one part of a system spends waiting for another part to catch up.

This is most common when the system sends data out to a peripheral device, and it waiting for the

peripheral to send some data back (peripherals tend to be slower than onboard system

components).

Mirroring: see RAID.

NVRAM: ROM and EEPROM are both examples of Non-Volatile RAM, memory that holds its data

without power. DRAM, in contrast, is volatile.

OEMs (Original Equipment Manufacturers): Compaq or IBM package other companies’

motherboards and hardware inside their case and sell them.

Parallel port: transmits the bits of a byte on eight different wires at the same time (that is, in

parallel form, eight bits at the same time).

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PCI (Peripheral Component Interconnect): a 32 or 64-bit local bus (data pathway) which is

faster than the ISA bus. Local buses are those which operate within a single system (as opposed

to a network bus, which connects multiple systems).

PCI PIO (PCI Programmable Input/Output) modes: the data transfer modes used by IDE drives.

These modes use the CPU for data transfer (in contrast, DMA channels do not). PCI refers to the

type of bus used by these modes to communicate with the CPU.

PCI-to-PCI bridge: allows you to connect multiple PCI devices onto one PCI slot.

Pipeline burst SRAM: a fast secondary cache. It is used as a secondary cache because SRAM

is slower than SDRAM, but usually larger. Data is cached first to the faster primary cache, and

then, when the primary cache is full, to the slower secondary cache.

Pipelining: improves system performance by allowing the CPU to begin executing a second

instruction before the first is completed. A pipeline can be likened to an assembly line, with a given

part of the pipeline repeatedly executing a set part of an operation on a series of instructions.

PM timers (Power Management timers): software timers that count down the number of

seconds or minutes until the system times out and enters sleep, suspend, or doze mode.

PnP (Plug-n-Play): a design standard that has become ascendant in the industry. Plug-n-Play

devices require little set-up to use. Novice end users can simply plug them into a computer that is

running on a Plug-n-Play aware operating system (such as Windows 98), and go to work. Devices

and operating systems that are not Plug-n-Play require you to reconfigure your system each time

you add or change any part of your hardware.

PXE (Preboot Execution Environment): one of four components that together make up the

Wired for Management 2.0 baseline specification. PXE was designed to define a standard set of

preboot protocol services within a client, towards the goal of allowing networked-based booting to

boot using industry standard protocols.

RAID (Redundant Array of Independent Disks): a way for the same data to be stored in

different places on many hard drives. By using this method, the data is stored redundantly, also

the multiple hard drives willl appear as a single drive to the operating system. RAID level 0 is is

known as striping, where data is striped (or overlapped) across multiple hard drives, but offers no

fault-tolerance. RAID level 1 is known as mirroring, which stores the data within at least two hard

drives, but does not stripe. RAID level 1 also allows for faster access time and fault-tolerance,

since either hard drive can be read at the same time. RAID level 0+1 is both striping and

mirroring, providing fault-tolerance, striping, and faster access all at the same time.

RAM (Random Access Memory): technically refers to a type of memory where any byte can be

accessed without touching the adjacent data, is often used to refer to the system’s main memory.

This memory is available to any program running on the computer.

ROM (Read-Only Memory): a storage chip which contains the BIOS; the basic instructions

required to boot the computer and start up the operating system.

SDRAM (Synchronous Dynamic RAM): called as such because it can keep two sets of memory

addresses open simultaneously. By transferring data alternately from one set of addresses and

then the other, SDRAM cuts down on the delays associated with non-synchronous RAM, which

must close one address bank before opening the next.

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Serial port: called as such because it transmits the eight bits of a byte of data along one wire, and

receives data on another single wire (that is, the data is transmitted in serial form, one bit after

another).

SCSI Interrupt Steering Logic (SISL): Architecture that allows a RAID controller, such as

AcceleRAID 150, 200 or 250, to implement RAID on a system board-embedded SCSI bus or a set

of SCSI busses.

SIMM (Single In-line Memory Module): formally the most common form of RAM for

motherboards. They must be installed in pairs, and do not have the carrying capacity or the speed

of DIMM modules.

Sleep/Suspend mode: in this mode, all devices except the CPU shut down.

SDRAM (Static RAM): unlike DRAM, this type of RAM does not need to be refreshed in order to

prevent data loss. Thus, it is faster and more expensive.

Standby mode: in this mode, the video and hard drives shut down; all other devices continue to

operate normally.

Striping: see RAID

UltraDMA-33/66/100: a fast version of the old DMA channel. UltraDMA is also called UltraATA.

Without proper UltraDMA controller, your system cannot take advantage of higher data transfer

rates of the new UltraDMA/UltraATA hard drives.

USB (Universal Serial Bus): a versatile port. This one port type can function as a serial, parallel,

mouse, keyboard or joystick port. It is fast enough to support video transfer, and is capable of

supporting up to 127 daisy-chained peripheral devices.

VGA (Video Graphics Array): the PC video display standard

V-SYNC: controls the vertical scanning properties of the monitor.

ZIF Socket (Zero Insertion Force socket): these sockets make it possible to insert CPUs without

damaging the sensitive CPU pins. The CPU is lightly placed in an open ZIF socket, and a lever is

pulled down. This shift the processor over and down, guiding into the board and locking it into

place.

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Technical Support

If a problem arises with your system, you should turn to your dealer for help first. Your system has

most likely been configured by them, and they should have the best idea of what hardware and

software your system contains. Hence, they should be of the most assistance. Furthermore, if you

purchased your system from a dealer near you, you can actually bring your system to them to

have it serviced, instead of attempting to do so yourself (which can have expensive

consequences).

Help Resources:

1. See the FAQ and beep codes section of this manual.

2. See the Tyan website for FAQ, bulletins, driver updates, and other

information: http://www.tyan.com

3. Contact your dealer for help BEFORE calling Tyan.

4. Check the Tyan user group: alt.comp.periphs.mainboard.tyan

Returning Merchandise for Service

During the warranty period, contact your distributor or system vendor FIRST for any product

problems. This warranty only covers normal customer use and does not cover damages incurred

during shipping or failure due to the alteration, misuse, abuse, or improper maintenance of

products.

NOTE: A receipt or copy of your invoice marked with the date of purchase is required

before any warranty service can be rendered. You may obtain service by calling the

manufacturer for a Return Merchandise Authorization (RMA) number. The RMA number

should be prominently displayed on the outside of the shipping carton and the package

should be mailed prepaid. Tyan will pay to have the board shipped back to you.

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Notice for the USA

Compliance Information Statement (Declaration of Conformity Procedure) DoC

FCC Part 15: This device complies with part 15 of the FCC Rules

Operation is subject to the following conditions:

1) This device may not cause harmful interference, and

2) This device must accept any interference received including interference that may

cause undesired operation. If this equipment does cause harmful interference to radio

or television reception, which can be determined by turning the equipment off and on,

the user is encouraged to try one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Plug the equipment into an outlet on a circuit different from that of the

receiver.

• Consult the dealer on an experienced radio/television technician for help.

Notice for Canada

This apparatus complies with the Class B limits for radio interference as specified in the Canadian

Department of Communications Radio Interference Regulations. (Cet appareil est conforme aux

norms de Classe B d’interference radio tel que specifie par le Ministere Canadien des

Communications dans les reglements d’ineteference radio.)

Notice for Europe (CE Mark)

This product is in conformity with the Council Directive 89/336/EEC,

92/31/EEC (EMC).

CAUTION: Lithium battery included with this board. Do not puncture, mutilate, or dispose of

battery in fire. Danger of explosion if battery is incorrectly replaced. Replace only with the same or

equivalent type recommended by manufacturer. Dispose of used battery according to

manufacturer instructions and in accordance with your local regulations.

Document #: D 1466-100

M_s2425_100 If Not Then M S2425 100

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