Tyan THUNDER I7525 User Manual

Thunder i7525 (S2676) User’s Manual

S2676

Thunder i7525

///

Revision 1.01

Copyright © TYAN Computer Corporation, 2004-2005. All rights reserved. No part of this manual
may 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, Thunder i7525 and (S2676) are trademarks of TYAN Computer Corporation.
Intel, Xeon, and combinations thereof are trademarks of Intel Corporation.
Phoenix, PhoenixBIOS are trademarks of Phoenix Technologies.
Microsoft and Windows are trademarks of Microsoft Corporation.
Linux is a trademark of Linus Torvalds.
IBM, PC, AT and PS/2 are trademarks of IBM Corporation.
ATI, ATI RAGE is a trademark of ATI Technologies Incorporated.
SMSC is a trademark of SMSC - Standard Microsystems Corporation.
Portable Document Format (PDF) is a trademark of Adobe Corporation.

Information contained in this document is furnish ed 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.

http://www.tyan.com

i

Thunder i7525 (S2676) Table of Contents

Table of Contents

Chapter 1: Introduction ................................................................................................................1

1.1 – Congratulations!..............................................................................................................1

1.2 – Hardware Specifications.................................................................................................1

1.3 – Board Diagram................................................................................................................3

Chapter 2: Choose Proper Parts For Your System....................................................................4

2.1 – Central Processor Unit (CPU) Considerations ................................................................4

2.2 – Memory Considerations..................................................................................................4

2.3 – Chassis/Enclosure Considerations..................................................................................5

2.4 – Power Supply Considerations.........................................................................................5

Chapter 3: Board Installation.......................................................................................................7

3.1 –Key Component View.......................................................................................................8

3.2 – Jumper Settings & Definitions.........................................................................................9

3.3 – Mounting the Motherboard............................................................................................16

3.4 – Installing the Processor and Heatsink ...........................................................................16

3.5 – Installing the Memory....................................................................................................19

3.6 – Memory Installation Procedure......................................................................................19

3.7– Attaching Drive Cables...................................................................................................20

3.8 – Installing Add-In Cards..................................................................................................23

3.9 – Connecting External Devices........................................................................................24

3.10 – Installing the Power Supply.........................................................................................24

3.11 – Finishing Up ................................................................................................................25

Chapter 4: BIOS Setup................................................................................................................26

4.1 – Main BIOS Setup ..........................................................................................................27

4.2 – Main Submenu Standard / Native IDE..........................................................................30

4.3 – Advanced BIOS Features .............................................................................................32

4.4 – Security Menu...............................................................................................................44

4.5 – Power Menu..................................................................................................................46

4.6 – Boot Menu.....................................................................................................................48

4.7 – Exit Menu......................................................................................................................50

Chapter 5: Diagnostics...............................................................................................................51

5.1 Beep Codes.....................................................................................................................51

5.2 Flash Utility ......................................................................................................................51

Appendix I: Glossary..................................................................................................................54

Appendix II: Post Error Code for BIOS......................................................................................60

Technical Support..................................................................................................................65

http://www.tyan.com

ii

Thunder i7525 (S2676) Before you begin…

Before you begin…

Check the box contents!

The retail motherboard package should contain the following:

1x Thunder i7525 (S2676) motherboard

1x 34-pin floppy drive cable

1x 80-pin Ultra-DMA-133/100/66/33 IDE cable

1x 68-pin Ultra 320 SCSI cable (Optional)

1x Thunder i7525 (S2676) User’s Manual

1x Thunder i7525 (S2676) Quick Reference

1x TYAN driver CD

1x I/O shield

1 x Serial ATA driver diskette

SCSI Driver Disk (Optional)

1 x Serial ATA power cable

If any of these items are missing, please contact your vendor/dealer for replacement before
continuing with the installation process.

2 x Serial ATA cables

iii

http://www.tyan.com

Thunder i7525 (S2676)

Chapter 1: Introduction

You have purchased one of the most powerful Intel Xeon-based workstation solutions in a
standard SSI EEB v3.5 form factor. Based on the Intel E7210 chipset, the Thunder i7525 (S2676)
features some state-of-the-art technologies such as dual/single 800 MHz FSB Xeon processor
support, multiple PCI- Express buses, dual channel DDR2 memory design, onboard PCI-Express
Gigabit Ethernet port, Serial-ATA IDE ports, and multiple USB2.0 (Universal Serial Bus) ports. By
doubling the capability of existing AGP8x designs with transfer rates of 4.0 Gigabytes per second
over a x16 PCI Express lane for graphics controllers, the onboard x16 PCI -Express slot supports
a high performance graphics infrastructure for high-end gaming or multimedia.

Visit Tyan’s website at http://www.tyan.com . There, you can find information on all of Tyan’s
products with up-to-date FAQs, a list of worldwide distributors, Tyan software utilities, the latest
drivers, memory compatibility listings, and BIOS setting explanations.

1.2 – Hardware Specifications

1.1 – Congratulations!

Processors

- Dual mPGA604 ZIF sockets

- Supports single or dual Intel Xeon

processors (Nocona)



- 800MHz Front-Side Bus

- Dual onboard 4-phase VRM 10.1 complaint

voltage regulation design

Chipset

- Intel E7525 chipset

§ E7525 MCH (North Bridge)

§ ICH5R (South Bridge)

§ PXH (PCI-X hub)

- SMSC LPC47B397 Super I/O chip

Expansion Slots

- One x16 PCI- Express high-performance

Graphics slot

- One PCI-X 64-bit 133/100/66MHz (3.3-

Volt) slot

- Two PCI-X 64-bit 100/66MHz (3.3-volt)

slots

- One PCI 32-bit 33MHz (5-Volt) slots

- Total of six usable slots

Memory

- Eight 240-pin 1.8-Volt DDR2 400 DIMM

sockets

- Dual channel memory bus

- Supports Registered/ECC or registered

/non-ECC memory

- Supports up to 32GB* of Registered

DDR2-400 DIMM modules

http://www.tyan.com

Integrated LAN

- Broadcom BCM5751 PCI Express Gigabit

Ethernet Controller

System Hardware Health Monitor

- Total four 3-pin fan headers with

tachometer monitoring and five of them
with PWM control

- Chassis intrusion header

- Temperature and voltage monitoring

- Watchdog timer

BIOS

- Phoenix BIOS 4Mbit flash ROM

- Supports ACPI 1.0b, PnP, DMI 2.0

- Auto configuration of IDE devices

- Multiple boot options

- Power Management: ACPI S1, S3, S4 and

S5 modes

Other Integrated I/O Interfaces

- One floppy connector for up to two drives

- One UART serial port connector

- One ECP/EPP/SPP parallel connector

- One OPTION USB header with 2-4 USB

ports (2 front USB ports via an optional
cable)

- PS/2 mouse & keyboard ports

1

Thunder i7525 (S2676)

*Not validated at time of print. (16GB

validated at time of release)

Integrated Audio

- Intel ICH5R AC’97 compliant audio link

- Analog Device AD1981B CODEC

- Line-in, Line-out, Mic -in rear vertical jacks

and a front panel audio header

- One 4-pin CD-ROM audio input header

- One 4-pin Auxiliary header

Integrated Mass Storage Port

- Two ICH5 -S integrated SATA ports up to

1.5 Gbit/s with SATA RAID 0,1 (Microsoft
OS support only)

- Two bus-master UDMA ATA100/66/33

Parallel IDE channels support up to 4
ATA/ATAPI complaint devices

Note: TYAN reserves the right to add support or discontinue support for any OS with or without
notice.

Software Specifications

OS (Operating System) Support

Win2k Pro Advanced Server
WinXP Pro
RedHat (x32) 9.0
SuSE (x32) 9.0, 9.1
SuSE (x64) 9.0
Other distributions of Linux pending validation

TYAN reserves the right to add support or discontinue support for any OS with or without
notice.

Form Factor

- SSI EEB 3.5 footprint (12”x13”,

305x330mm)

- EPS12V V3.51 power connectors

- Rear I/O

§ Stacked PS/2 mouse and keyboard
connectors

§ One parallel connector

§ One GbE RJ45 connector

§ One stack of four USB ports

§ Stacked audio connector for MIC,

Line_out and Line_in.

Regulatory

- FCC Class B (Declaration of Conformity)

- European Community CE (Declaration of

Conformity)

http://www.tyan.com

2

Thunder i7525 (S2676)

3

1.3 – Board Diagram

The above picture is purely representative. Due to engineering updates and new board
revisions, certain components may change and or be repositioned. The picture above may
or may not look exactly like the board you received.

The following page includes details on the vital components of this motherboard.

http://www.tyan.com

Thunder i7525 (S2676)

4

Chapter 2: Choose Proper Parts For Your System

Before you install a system with this motherboard, make sure your major system parts meet the
following basic guidelines and requirements:

§ Process Type and Package
Thunder i7525 (S2676) board supports Intel Xeon
Array package.

§ Front Side Bus (FSB)
The processor host bus, or called Front Side Bus (FSB), always operates at 800 MHz.
Choose Intel Xeon



800 MHz FSB processors for Thunder i7525 (S2676) board.

The system will not operate with 400MHz FSB or 533MHz FSB Intel Xeon

§ Single/Dual Processor System
The S2676 will only support a dual CPU configuration where BOTH CPUs have the
same FSB, Core Frequency and internal cache sizes. Using CPUs that do not follow
these guidelines can/would result in damage to the CPUs or the motherboard.
Single Processor System:
When installing only a single CPU, that CPU must be installed on CPU1 socket to
operate correctly.
Dual Processor System:
Thunder i7525 (S2676) board supports dual processor configurations only in which both
processors operate with the same FSB frequency, core frequency, and have the same
internal cache sizes. Mixing processors operating at different FSB frequency, core
frequency, or cache sizes may cause system non-operation or damages on processors
and/or the motherboard.

2.2 – Memory Considerations

§ Memory Type
The S2676 motherboard supports up to eight 240-pin, 1.8 volt DDR2-400 Reg/ECC
modules. The 8 slots support 256MB, 512MB, 1GB, 2GB and 4*GB memory sticks up
to 32*GB the maximum in total. (*Not validated at the time of release)
DDR -I or Unbuffered DDR memory modules are not supported by Thunder i7525
(S2676) design.
Visit Tyan’s web site for the memory recommendation list.

§ Memory Installation
The Thunder i7525 is based on Intel’s e7525 Tumwater chipset which supports a 144­bit wide dual memory channel in an interleaved scheme. The motherboard requires a
minimum of 2 memory modules installed in order to boot/POST. You must install these
2 memory modules starting in DIMM slots 1 and 2. Do not mix and match different sizes,
brands or speeds for the best performance and stability possible.

2.1 – Central Processor Unit (CPU) Considerations



processors in 604-pin Pin Grid



CPUs.

http://www.tyan.com

Thunder i7525 (S2676)

5

2.3 – Chassis/Enclosure Considerations

§ Motherboard size
Thunder i7525 (S2676) board is in the board size of 12 ” (W) x13” (L).

§ Motherboard and CPU Heat-sink Mounting Holes
There are six motherboard-mounting holes and eight CPU heat-sink mounting holes on
Thunder i7525 (S2676) board design. The motherboard and CPU mounting hole
locations follow SSI EEB v3.51 (A Server System Infrastructure specification for Entry
Pedestal Servers and Workstations) specifications. Ensure that the SSI-EEB chassis
you purchase is designed to accommodate the new Nacona heat sink mounting
process.

NOTE: There are many SSI-EEB chassis, but not all will accommodate the Nacona
design for the direct heat sink attachment to the chassis. Check with your vendor to
make sure the chassis supports the design.

Thunder i7525 (S2676) supports Intel’s CEK (Common Enabling Kit) for securing Intel’s
Xeon 800 MHz FSB processors in the chassis. Two CEK springs for the dual
processors are pre-assembled with the motherboard or enclosed in the motherboard
accessory package. The CPU heat-sinks must be mounted down to the chassis base
pan with stand -offs. Any additional chassis standoffs, besides the 6 motherboard­mounting holes and 8 CPU heat-sink mounting holes, should be removed to preventing
from short-circuit or motherboard damage.

§ Others
As a system integrator, the air-flow/thermal, EMI/EMC, shock/vibration, and system
packing should be also considered for choosing a proper enclosure.

2.4 – Power Supply Considerations

§ Power connectors
Thunder i7525 (S2676) board supports EPS/12V power supply unit (PSU) with three
power connectors listed below.

EPS/12V Power Connectors

+

24-pin system power connector 8-pin CPU power connector

§ Split processor power planes
Thunder i7525 (S2676) board supports dual Intel’s 800 MHz FSB Xeon processors,
which could reach up to 140 Watts per processor. (Check Intel’s web for the processor
specifications.) By following SSI EEB v3.51 specifications, the Thunder i7525 (S2676)
is designed with two separate voltage regulator circuits to provide the power for both
onboard processors in separate power rails. Using a power supply with a combined
CPU power plane from the CPU power connector is not allowed and may cause the
system to fail to power up or damage to the power supply.

http://www.tyan.com

(split CPU power planes)

Thunder i7525 (S2676)

6

§ Power requirements
Check your power supply specifications to ensure sufficient power currents for each
power rail based on your system configuration.
The major system components/parts powe r sources are listed below as reference:

Components/Parts Main Power Source Power Connectors

CPU1 +12V_CPU1 8-pin CPU power connector
CPU2 +12V_CPU2 8-pin CPU power connector
Memory (Normal) +12V 24-pin and 6-pin power connectors
Memory
(Suspend to RAM)
System logic +3.3V 24-pin and 6-pin power connectors
x16 PCI- Express
Graphic card
x8 PCI- Express +12V and +3.3V 24-pin and 6-pin power connectors
32-bit PCI +12V, +5V and +3.3V 24-pin and 6-pin power connectors
Cooling fans +12V 24-pin and 6-pin power connectors
IDE/SATA hard drives +12V and +5V From PSU
CDROM/DVD drives +12V and +5V From PSU

+5Vstandby 24-pin power connector

+12V and +3.3V 24-pin and 6-pin power connectors

http://www.tyan.com

Thunder i7525 (S2676)

7

Chapter 3: Board Installation

How to install our products right… . the first time!

The first thing you should do read this user’s manual. It contains important information that 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 a safely grounded
object to release static charge (i.e. power supply case). For the safest conditions,
TYAN recommends wearing a static safety wrist strap.

(2) Inspect the mounting holes pattern of the Thunder i7525 (S2676) to match your chassis

standoff locations and remove the additional standoffs.

(3) Hold the motherboard by its edges and do not touch the bottom of the board, or flex the

board in any way.

(4) Avoid touching the motherboard components, IC chips, connectors, memory modules

and leads.

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

board was shipped in.

(6) Inspect the board for damage.
(7) Check the jumper settings and connector locations as described in next sections.

In last sections of this chapter, we will cover the details on how to install your motherboard into
your chassis, as well as installing the processor, memory, disk drives and cables.

NOTE: Do not apply power to the board if it has been damaged.

http://www.tyan.com

Thunder i7525 (S2676)

8

3.1 –Key Component View

This jumper diagram is representative of the latest board revision available at the time of
publishing. The board you receive may or may not look exactly like the above diagram.
The board parts are not to scale.

Fig. 3-1 Thunder i7525 (S2676) Key Component View

http://www.tyan.com

Thunder i7525 (S2676)

9

3.2 – Jumper Settings & Definitions

Jumper /
Connector
P1 24-pin system power connector
P3 8-pin CPU power connector
P7 CD- ROM audio input connector
P10 Keyboard/m ouse connector
P11 Auxiliary audio input connector
P20 Primary IDE connector
P21 Secondary IDE connector
P23 Front audio header
P29 SCSI LED connector
P24 Front USB header
J3 TPM disable jumper
J9 External LAN connector
J10 Rear USB connector
J11 Rear IEEE1394 connector
J12 Front IEEE1394 connector
J32 Floppy drive connector
J86 Front panel connector
J102 PS/2 wake up jumper
J104 BIOS write protect jumper
J105 Chassis intrusion header
J106 LCD connector
J107 Remote thermal sensor header (Reserved)
J108 Clear CMOS jumper
J109 PSU PC98 connector
J110 FAN 1connector
J111 FAN 2 connector
J112 FAN 4 connector
J113 FAN 3 connector
J114 SPDIF connector
J137 LAN disable jumper

**All fans may be monitored from BIOS.
**J58 & Card Reader are reserved for OEM design only.

Jumper Example

Function

OPEN - Jumper OFF Without jumper cover
CLOSED - Jumper ON With jumper cover

To indicate the location of pin-1

http://www.tyan.com

Thunder i7525 (S2676)

10

eral seconds to

3.2.1 - Clear CMOS Switch

J108

You can reset the CMOS settings by Closing
header J108, if you have forgotten your
system/setup password or need to clear
system BIOS settings.

Reconnect power & power on system

3.2.2 - Fan Connector

This 3-pin fan connector supports tachometer monitoring.
There are three 3-pin fan connectors on Thunder i7525 (S2676) board. Use these connectors

to connect chassis and processor cooling fans to your motherboard. Cooling fans can keep
the system stable and reliable for its product’s life.

Pin1: GND
Pin2: +12V
Pin3: Tachometer

- Power off system and disconnect

- Close J108 for sev

- Remove Jumper

J108

both power connectors from the
motherboard.

Clear CMOS.

http://www.tyan.com

Thunder i7525 (S2676)

11

J86

3.2.3 - Front Panel Header

Normally, a chassis has some control or signal wires can be connected onto a motherboard for
hard drive LED, Power LED, power button, and reset button,
The front panel header (marked as “j86”) has been implemented on Thunder i7525 (S2676) board
for such purposes.

Front Panel Header

(J86)

Function PIN # PIN # Function

HDD LED+ 1 2 PWR LED
HDD LED# 3 4 PWR LED
RST SW 5 6 PWR SW
RST SW 7 8 PWR SW
+5V 9 10 FP_SLP#
IRRX 11 12 GND3
GND4 13 14 Key
IRTX 15 16 IR_PWR
RSVD1 17 18 RSVD2

http://www.tyan.com

Thunder i7525 (S2676)

12

P29

3.2.4 - Front USB Connector (USB2)

Front USB Header (P24)

P24

3.2.5 – External HDD LED Input Header (P29 )

Function Pin# Pin# Functio

Power 1 2 Power
USB6- 3 4 USB7­USB6+ 5 6 USB7+
GND 7 8 GND
Key 9 10 Reserve

P29

Pin# Function

1 NC
2 LED2-
3 LED2-
4 NC

n

d

http://www.tyan.com

Thunder i7525 (S2676)

13

9 1

1

3

P23 J105

3.2.6– Front Audio Header (P23)

3.2.7 – Chassis Intrusion Header (J105)

10 2

(P23)

Function Pin# Pin# Function

Micro
input
Micro
bias
Right line
output
NC
Left line
output

1 2

3 4

5 6

7 8

9 10

Analog
GND
Analog
VCC
Right line
return
Key
Left line
return

*Jumper 5, 6 and 9, 10 must be on
the header to provide audio. If
jumpers are removed no audio will
be heard.

J105

Pin# Function

1 Chassis_CBL_L
2 Intruder_L
3 HDR3

http://www.tyan.com

Thunder i7525 (S2676)

14

8

1

P24

3.2.8 – PSU PC98 Connector (J109)

(J109)

Pin# Function

1 GND
2 Fan speed control
3 GND
4 Fan speed reader
5 SMB clock
6 SMB DATA
7 3.3 volt
8 Ground

http://www.tyan.com

Thunder i7525 (S2676)

15

SATA1

3.2.9 - Serial ATA Connectors (SATA0 & SATA1 )SATA0/SATA1 (from Intel’s
FW82801ER/ICH5R South Bridge chip):

User can connect up to two serial ATA hard disks to run IDE mode or configure both drives to a
RAID under Windows. The RAID level 0 or level 1 function is supported for Microsoft’s Windows
XP and Windows 2000 operating systems.

&
SATA2

Serial ATA connectors

For information regarding the setup of SATA/RAID, you may search the contents of the
driver CD that shipped with your motherboard or visit our website at:
HTTP://WWW.TYAN.COM/

http://www.tyan.com

Thunder i7525 (S2676)

16

Before installing your motherboard, make sure your chassis has the necessary motherboard
support studs installed. These studs are usually metal and are in gold or silver color. Usually, the
chassis manufacturer will pre-install the support studs. Remove the unused or additional studs,
which may scratch the motherboard or cause short-circuit with the components on th e bottom
side. If you’re unsure of stud placement, simply lay the motherboard inside the chassis and align
the screw holes of the motherboard to the studs inside the case. If there are any studs missing,
you will know right away since the motherboard will not be able to be securely installed. Some
chassis’ include plastic studs instead of metal. Although the plastic studs are usable, TYAN
recommends using metal studs with screws that will fasten the motherboard more securely in
place.

3.4 – Installing the Processor and Heats ink

3.3 – Mounting the Motherboard

Your Thunder i7525 (S2676) supports the latest processor technologies from Intel. Check the
following page on TYAN’s website for latest processor support:

http://www.tyan.com

The following diagrams will detail how to install your processor:

The diagram is provided as a visual guide to help you install socket processors and may not be an
exact representation of the processors you have.

1. Lift the lever on the socket until it is approximately 90o or as far back as possible to the
socket.

2. Align the processor with the socket. There are keyed pins underneath the processor to
ensure that the processor’s installed correctly.

3. Seat the processor firmly into the socket by gently pressing down until the processor
sits flush with the socket.

4. Place the socket lever back down until it locks into place.

5. Your processor is installed.

Take care when installing the processor as it has very fragile connector pins below the
processor that can bend and break if inserted improperly.

Heatsink Installation

After you are done installing the processor, you should proceed to installing the heatsink.
Heatsink will ensure that the processor not overheat and continue to operate at maximum

http://www.tyan.com

Thunder i7525 (S2676)

17

performance for as long as yo u own them. An overheated processor is dangerous to the health of
the motherboard.

DCA (Direct Chassis Attach) is required to install the Intel Xeon processor on the S2676
motherboard. The processor heat sinks need to be Intel’s CEK (Common Enabling Kit) compliant
to attach properly. Each processor heat sink needs to be mounted directly to the chassis via the 4
mounting studs. If your chassis does not have the holes to attach these heat sinks directly, then it
is not the correct version of the SSI -EEB v3.5 chassis that supports Intel’s latest design.

- Memory Type:
The S2676 motherboard supports Reg/ECC DDR2-400 memory modules and requires a
minimum of 2 DIMMs to boot/POST the system. Unbuffered or DDR memory is NOT
supported with this motherboard.

http://www.tyan.com

Thunder i7525 (S2676)

18

TIP: Use metal studs if possible, as they hold the motherboard into place more securely than
plastic standoffs.

http://www.tyan.com

Thunder i7525 (S2676)

19

3.5 – Installing the Memory

Before attempting to install any memory, make sure that the memory you have is compatible with
the motherboard. You can double check compatibility from Tyan’s website. The S2676 supports
up to eight 240-pin, 1.8 volt DDR2-400 Reg/ECC modules. The DDR2-400 memory can be
256MB, 512MB, 1GB, 2GB, and 4*GB sizes. DDR or unbuffered DDR memory modules are not
supported by the S2676 design. For more information on the memory recommendation list, please
visit Tyan’s web site at: www.tyan.com

Here are a few key points to note before installing memory into your Thunder i7525 (S2676):

• 128M B, 256MB, 512MB, 1GB, 2GB and 4*GB Reg/ECC DDR2-400 memory modules

are supported

• All installed memory will be automatically detected - no need to set any jumpers

• The Thunder i7525 (S2676) supports up to 32*GB of memory

• You can install either single- or double -sided modules on this board. Each DIMM can

work respectively for single-channel mode and dual-channel mode. Please note that the
same type and density memory modules are necessary while using dual-channel,
otherwise it may cause system instability.

Please refer to the following table memory configuration.

*4GB modules and a total amount of 32GB were not validated at the time of release.

NOTE:

While using ECC type memory, it will take longer time to post. Due to the manner in which it
counts the memory and has to write zero’ s to every bit of the stick before progressing through the
POST.

3.6 – Memory Installation Procedure

When installing memory modules, make sure the modules align properly with the memory socket.
There should be keys (small indents) on your memory modules that fit according to the keys in the
memory socket. DDR modules and sockets have only one key, which is slightly near the center of
the module/socket. The method of installing memory modules is detailed in the following
diagrams.

http://www.tyan.com

Thunder i7525 (S2676)

20

Once the memory modules are firmly seated in the socket, two clamps on either side will close
and secure the module into the socket. Sometimes you may need to close the clamps manually.

To remove the memory module, simply push the clamps outwards until the memory module pops
up. Then simply remove the module.

TIP: When installing memory, a module may require a considerable amount of force to seat
properly, although this is very rare. To avoid bending and damaging your motherboard, place it
on its anti-static bag and onto a flat surface, and then proceed with memory installation.

Note: You MUST unplug the power connector to the motherboard before performing system
hardware changes, to avoid damaging the board or expansion device

Finishing Installing the Heatsink

After you finish installing the heatsink onto the processor and socket, attach the end wire of the
fan (which should already be attached to the heatsink) to the motherboard. The following diagram
illustrates how to connect fan s onto the motherboard.

After you’re finished installing all the fans you can connect your drives (hard drives, CD-ROM
drives, etc.) to your motherboard.

3.7– Attaching Drive Cables

Attaching IDE drive cabling is simple. These cables are “keyed” to only allow them to be
connected in the correct manner. TYAN motherboards have two on-board IDE channels, each
supporting two drives. The black connector designates the Primary channel, while the white

connector designates the Secondary channel.

http://www.tyan.com

Thunder i7525 (S2676)

21

Serial ATA Cable

Serial ATA Hard drive

Power Cable

Attaching IDE cables to the IDE connectors is illustrated below:

Simply plug in the BLUE END of the IDE cable into the motherboard IDE connector, and the other
end(s) into the drive(s). Each standard IDE cable has three connectors, two of which are closer
together. The BLUE connector that is furthest away from the other two is the end that connects to
the motherboard. The other two connectors are used to connect to drives.

TIP: Pin 1 on the IDE cable (usually designated by a colored wire) faces the drive’s pow er
connector.

Serial ATA

Attaching Serial ATA cables to the Serial ATA connectors is illustrated below:

Serial ATA Connector

Serial ATA Cable

Simply plug in the BLACK END of the Serial ATA cable into the motherboard Serial ATA
connector, and the other end(s) into the drive(s). Each standard Serial ATA cable has two
connectors. Both BLACK ENDS of the Serial ATA cable are the same that are used to connect to
drives or motherboard.

http://www.tyan.com

Thunder i7525 (S2676)

22

Floppy Drives

Attaching a floppy drive can be done in a similar manner to an IDE drive. See the diagram 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 proper connection of the cable.

Below are some symptoms of incorrectly installed floppy drives. While they are minor and
installing them incorrectly doesn’t cause severe problems, it may cause your system to f reeze or
crash when trying to read and/or write to diskettes.

Symptoms of incorrectly installed floppy drives

Drive is not automatically detected

Drive Fail message at bootup

Drive does not power on

Drive activity light is constantly on

The first floppy drive (commonly 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.

Usually caused by faulty cables, cables put in
backwards or a bad floppy drive or motherboard.
Try another floppy drive to verify the problem if
the cable is properly installed or try replacing the
actual cable. Also check to see if the onboard
floppy controller is enabled in the BIOS setup.
The cable, floppy drive or motherboard may be
faulty. Try another drive or cable to verify.
Check power cable and cabling. Maybe a bad
power supply or drive cable problem.
Usually signifies that the cable on the drive is on
backwards, which is a common issue. Reverse
the cable at the floppy drive end and try again.

http://www.tyan.com

Thunder i7525 (S2676)

23

3.8 – Installing Add-In Cards

Before installing add-in cards, it’s helpful to know if they are fully compatible with your
motherboard. For this reason, we’ve provided the diagrams below, showing the most common
slots that may appear on your motherboard. Not all of the slots shown will necessarily appear on
your motherboard, however, there will be combinations of what you see here.

Simply find the appropriate slot f or your add-in card and insert the card firmly. Do not force any
add-in cards (or anything else) into any slots if they won’t seat in place. It’s better to try another
slot or return the faulty card rather than damaging both the motherboard and the add -in card.

TIP: It’s a good practice to install add-in cards in a staggered manner, rather than directly
adjacent to each other. This allows air to more easily circulate within the chassis, providing
improved cooling for all installed devices.

Note: YOU MUST unplug the power connector to the motherboard before performing system
hardware changes, to avoid damaging the board or expansion device.

http://www.tyan.com

Thunder i7525 (S2676)

24

Keyboard

Mouse

LPT1

Stacked USB x4

RJ45 Firewire

SPDIF

COM1

Audio

3.9 – Connecting External Devices

Connecting external devices to the motherboard is an easy task. The standard dev ices you
should expect to plug into the motherboard are keyboards, mouse, and printer cables. The
following diagram will detail the ATX port stack for the following board:

Thunder i7525 (S2676)

Besides being used primarily to connect printers, the Printer Port is also used for devices such as
Zip drive, some external CD-RW drives and or other external devices. More on the uncommon
side these days are the Serial Ports. They were primarily used to connect external modems, but
most modems today are using USB or are installed internally.

TIP: While the ports have been created to accept connectors in only one direction, make sure to
be careful when inserting connectors. At times, attaching connectors in the incorrect orientation
can damage, bend and or break the pins.

There are two power connectors on this motherboard. By default, this motherboard requires that
you have an EPS12V SSI 3.5 power supply that has a split plane power rail. The minimum power
should not be less the 450 watts. This power supply provides 12v power planes to provide
maximum power to the CPUs. The power supply should have one 24-pin connector and one 8-pin
connector for motherboard power. Two onboard switching voltage regulators that are sourced by
separate +12V power rails provide each CPU’s power. This +12V CPU power source is from the
onboard 8-pin square connector. The +12V power on the 20-pin ATX power connector is for
system board and separated from CPU +12V regulator power source. Therefore, the CPU will not
be powered if you do not connect the 8-pin square 12V power connector.

3.10 – Installing the Power Supply

NOTE

YOU MUST unplug the power supply before plugging in the 24-pin and 8 -pin

power cables to motherboard connectors.

http://www.tyan.com

Thunder i7525 (S2676)

25

3.11 – Finishing Up

Congratulations on making it this far! You’re finished setting up the hardware aspect of your
computer. Before closing up your chassis, make sure that all cables and wires are connected
properly, especially IDE cables and most importantly, jumpers. You may have difficulty powering
on your system if the motherboard jumpers are not set correctly.

In the rare circumstance that you have experienced difficulty, you can find help by asking your
vendor for assistance. If they are not available for assistance, please find setup information and
documentation online at our website or by calling your vendor’s support line.

http://www.tyan.com

Thunder i7525 (S2676)

26

Chapter 4: BIOS Setup

Installation

The BIOS is the basic input/output system, the firmware on the motherboard that enables your
hardware to interface with your software. This chapter describes different settings for the BIOS
that can be used to configure your system.

The BIOS section of this manual is subject to change without notice and is provided for reference
purposes only. The settings and configurations of the BIOS are current at the time of print, and
therefore may not match exactly what is displayed on screen.

This section 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.

This motherboard’s BIOS is a customized version of the industry -standard BIOS for IBM PC AT­compatible personal computers. The BIOS provides critical, low -level support for the system’s
central processing unit (CPU), memory, and I/O subsystems.

This BIOS has been customized by adding important features such as password protection,
power management, and chipset “tuning” fe atures that control the system. This section will guide
you through the process of configuring the BIOS for your system setup.

Starting Setup

The BIOS is immediately activated when you turn on the computer. The BIOS reads system
configuration in CMOS RAM and begins the process of checking out the system and configuring it
through the Power-On-Self-Test (POST).

When these preliminary tests are complete, the BIOS searches for an operating system on one of
the system’s data storage devices (hard drive, CD-ROM, etc). If one is found, the BIOS will
launch that operating system and hand control over to it. You can enter the BIOS setup by
pressing the [Delete] key when the machine boots up and begins to show the memory count.

Setup Basics

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

Tab Moves from one selection to the next
Left/Right Arrow Keys Change from one menu to the next
Up/Down Arrow Keys More between selections
Enter Opens highlighted section
PgUp/PgDn Keys Change settings.

Key Function

http://www.tyan.com

Thunder i7525 (S2676)

27

Getting Help

Pressing [F1] will 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 booting the computer after making and saving the changes
with the BIOS setup program, you can restart the computer by holding the power button down
until the computer shuts off (usually within 4 s econds); resetting by pressing CTRL -ALT-DEL; or
clearing the CMOS.

The best advice is to only alter settings that you thoroughly understand. In particular, do not
change settings in the Chipset section unless you are absolutely sure of the outcome. TYAN or
your system manufacturer for the best performance and reliability carefully chose the Chipset’s
default settings. Even a seemingly small change to the Chipset setup options may cause the
system to become unstable or unusable.

Setup Variations

Not all systems will have the same BIOS setup layout or options. While the basic look and
function of the BIOS setup remains more or less the same for most systems, the appearance of
your Setup screen may differ from the charts shown in this section. Each system design and
chipset combination requires a custom configuration. In addition, the final appearance of the
Setup program depends on the system designer. Your system designer may decide that certain
items should not be available for user configuration, and remove them from the BIOS setup
program.

NOTE: On the following pages, options written in bold type represent the BIOS Setup default.

4.1 – Main BIOS Setup

System Time: [HH:MM:SS]
System Date: [MM/DD/YYYY]

Legacy Diskette A: [1.44/1.25 MB 3½”]

? Standard IDE: [xxx-(PM)]
? Standard IDE: [xxx-(PS)]
? Standard IDE: [xxx-(SM)]
? Standard IDE: [xxx-(SS)]

http://www.tyan.com

Thunder i7525 (S2676)

28

? Native IDE: [xxx-(SATA1)]
? Native IDE: [xxx-(SATA2)]

Installed O/S: [Other]
? System Information
Base Memory: 640K

Extended Memory: 512M

Setup Item Selections (default

Item Specific Help

values are in bold)

System Time: 00:00:00 … 23:59:59 <Tab>, <Shift-Tab> or

<Enter> selects field.

System Date: 01/01/1980 ...

12/31/2079

Legacy Diskette A: Disabled

<Tab>, <Shift-Tab> or
<Enter> selects field.
Selects floppy type.

360 KB 5¼“

1.2 MB 5¼“
720 KB 3½“

1.44/1.25 MB 3½“

2.88 MB 3½“

Standard IDE: None

View drive options.

DriveName-(PM)

Standard IDE: None

View drive options.

DriveName-(PS)

Standard IDE: None

View drive options.

DriveName-(SM)

Standard IDE: None

View drive options.

DriveName-(SS)

Native IDE: None

View drive options.

DriveName-(SATA1)

Native IDE: None

View drive options.

DriveName-(SATA2)

Installed O/S: Other

Windows 32 bit
Windows 64 bit
Linux

Select the operating
system installed on your
system which you will
use most commonly.

Note: An incorrect
setting can cause some

http://www.tyan.com

Thunder i7525 (S2676)

29

operating systems to
display unexpected
behaviour.

System Information - View system

information.

http://www.tyan.com

Thunder i7525 (S2676)

4.2 – Main Submenu Standard / Native IDE

Maximum Capacity: 160 GByte
PIO Mode: PIO 4
DMA Mode: UDMA 5

Setup Item Selections (default

values are in Bold)

Maximum Capacity: xxxx GByte

(only view the current
setting, it should not be
selectable!!)

PIO Mode: PIO 0

PIO 1
PIO 2
PIO 3
PIO 4
PIO 5
(only view the current
setting, it should not be
selectable!!)

DMA Mode: None

UDMA 1
UDMA 2
UDMA 3
UDMA 4
UDMA 5
(only view the current
setting, it should not be
selectable!!)

4.2.1 Main Submenu Syst em Information

BIOS Version: 1.00.1691
BIOS Build Date: 03/11/2004

Item Specific Help

-

-

-

http://www.tyan.com

30

Thunder i7525 (S2676)

Ident-Nr.:
System: Thunder i7525

System Version:
System Serial:

Board: (S2676)
Board Version: S26361-D1691

Asset Tag:
MAC Address: 00:E0:81:60:90:40

Setup Item Selections (Default

Item Specific Help

values are in bold)

BIOS Version Must reflect the current

installed BIOS version.

BIOS Build Date: Must reflect the Build date

of the current installed

Any items on this
menu can not be
modified within BIOS

Setup menu.
BIOS version. Format
must be MM/DD/YYYY

Ident-Nr.:
System:
System Version:
System Serial:
Board:
Board Version:
Asset Tag:
MAC Address: Must display the MAC

address of the onboard
LAN.

http://www.tyan.com

31

Thunder i7525 (S2676)

4.3 – Advanced BIOS Feature s

? Hardware Monitoring
? BIOS Event Logging
? Processors
? Chipset
? Diskette Controller
? ATA Controller
? Integrated SCSI Controller
? Integrated Network Interface
? Integrated Audio
? Integrated 1394
? Integrated USB
? I/O Device Configuration
? PCI Configuration

Reset Configuration Data: [No]

Setup Item Selections (default

Item Specific Help

values are in bold)

Hardware Monitoring - Hardware monitoring

configuration

BIOS Event Logging - BIOS event logging

configuration

Processors - Display of processor

information and
configuration of
processor features.

Chipset - Configuration of the

chipset features

Diskette Controller - Configuration of the

integrated floppy disk
controller

ATA Controller - Configuration of the

integrated PATA and

SATA controllers
Integrated SCSI
Controller

- Configuration of the
integrated SCSI
controller

http://www.tyan.com

32

Thunder i7525 (S2676)

Integrated Network
Interface

- Configuration of the
integrated network
interface

Integrated Audio - Configuration of the

integrated audio
controller

Integrated 1394 - Configuration of the

integrated IEEE 1394
controller

Integrated USB - Configuration of the

integrated USB
controller

I/O Device Configuration - Peripheral configuration
PCI Configuration - PCI device configuration
Reset Configuration
Data:

No

Yes

Select 'Yes' if you want
to clear the Extended
System Configuration
Data (ESCD) area.

In Advanced BIOS features , you will be able to adjust many of the feature that effect system
speed and boot-up options.

http://www.tyan.com

33

Thunder i7525 (S2676)

4.3.1 Advanced Submenu Hardware Monitoring

Fan Speed Control: [Auto]

Setup Item Selections (Default

Item Specific Help

values are in bold)

Fan Speed Control: Silent

Auto

Full Speed

[Silent]
Fans are working with the
lowest possible speed.
Silent mode could cause
performance loss.

[Auto]
Optimum temperature
control at maximum CPU
performance.

[Full Speed]
All fans are working at full
speed.

4.3.2 Hardware Monitoring Submenu Realtime Sensors

Sensor xxx: value yyy

Setup Item Selections (Default

Item Specific Help

values are in bold)

Displays all sensors All items on this menu

can not be modified.

4.3.3 Advanced Submenu BIOS Event Logging

BIOS Event Logging: [Enabled]
View BIOS Event Log: [Enter]
Clear BIOS Event Log: [Disabled]

http://www.tyan.com

34

Thunder i7525 (S2676)

Setup Item Selection s (Default

Item Specific Help

values are in bold)

BIOS Event Logging: Enabled

Disabled

[Enabled]
Errors will be logged to
BIOS event log.

[Disabled]
Errors will not be logged
to the BIOS event log.

View BIOS Event Log: Enter Select <Enter> to view

the content of the BIOS
event log.

Clear BIOS Event Log: Disabled

Enabled

Setting this to enabled,
will clear BIOS event log
after rebooting the
system.

4.3.4 Advanced Submenu Processors

CPU0 Type: Intel® XEON™

CPU0 Speed: 3.2 GHz

CPU0 ID: 0F29

CPU0 Patch ID: 0015

CPU0 FSB: 800 MHz

CPU1 Type: Intel® XEON™

CPU1 Speed: 3.2 GHz

CPU1 ID: 0F29

CPU1 Patch ID: 0015

CPU1 FSB: 800 MHz

Hyper-Threading: [Enabled]
MPS Version: [1.4]

http://www.tyan.com

35

Thunder i7525 (S2676)

Setup Item Selections (Default

Item Specific Help

values are in bold)

CPU0 Type: Display the current

-

installed CPU type

CPU0 Speed: Display the current

-

installed CPU speed

CPU0 ID: Display the current

-

installed CPU ID

CPU0 Patch ID: Display the current

-

installed Patch ID

CPU0 FSB: Display the current

-

maximum FSB speed

CPU1 Type: Display the current

-

installed CPU type

CPU1 Speed: Display the current

-

installed CPU speed

CPU1 ID: Display the current

-

installed CPU ID

CPU1 Patch ID: Display the current

-

installed Patch ID

CPU1 FSB: Display the current

-

maximum FSB speed

Hyper-Threading: Enabled

Disabled

Hyper-Threading causes
a single physical
processor to appear to
be two or more logical
processors. It may
improve the system
performance, if enabled.
This feature is not
supported by all
operating systems.

MPS Version 1.1

1.4

Configures the MP
Specification revision
level. Some OS will
require 1.1 for
compatibility reasons.

http://www.tyan.com

36

Thunder i7525 (S2676)

4.3.5 Advanced Submenu Chipset

ECC Memory Checking: [Enabled]

Setup Item Selections (Default

Item Specific Help

values are in bold)

ECC Memory
Checking:

Enabled

Disabled

If all memory modules
in the system
supporting parity this
selection enables ECC
mode.

4.3.6 Advanced Submenu Diskette Controller

Diskette Controller: [Enabled]

Setup Item Selections (Default

Item Specific Help

values are in bold)

Diskette Controller: Enabled

Disabled

Enable/Disable the floppy
disk controller.

4.3.7 Advanced Submenu ATA Controller

P-ATA Interface: [P-ATA 1/2 + P-ATA

3/4]

S-ATA Interface: [Enabled]

S-ATA Mode: [Native]

http://www.tyan.com

37

Thunder i7525 (S2676)

Setup Item Selections (Default

Item Specific Help

values are in bold)

P-ATA Interface: P-ATA 1/2 + P-ATA

3/4

Enables/Disables the

Parallel ATA channels.
P-ATA 1/2
P-ATA 3/4

S-ATA Interface: Enabled

Disabled

S-ATA Mode: Compatible

RAID

Native

Enables the Serial ATA

Interface.

[Compatible]

Serial ATA is mapped to

the standard IDE drive

interface.

[RAID]

Requires two identical

SATA drives.

[Native]

Serial ATA configured in

native mode. Some

operating systems do not

support native IDE devices.

4.3.8 Advanced Submenu Integrated SCSI Controller

Integrated SCSI Controller: [Enabled]
Option ROM Scan: [Enabled]
SCSI Mode: [SCSI]

Setup Item Selections (Default

Item Specific Help

values are in bold)

Integrated SCSI
Controller:
Option ROM Scan: Enabled

SCSI Mode: SCSI

Enabled

Disabled
Disabled
Host RAID

Enable/Disable the
onboard SCSI controller.
Initialize device expansion
ROM.
Configure SCSI Mode.

http://www.tyan.com

38

Thunder i7525 (S2676)

4.3.9 Advanced Submenu Integrated Network Interface

Integrated Network Interface: [Enabled]
Option ROM Scan: [Enabled]
Latency Timer: [0040h]

Setup Item Selections (Default

Item Specific Help

values are in bold)

Integrated Network
Interface:
Option ROM Scan: Enabled

Latency Timer: Default

Enabled

Disabled
Disabled
0020h

0040h

0060h
0080h

Enables the onboard
LAN controller.
Initialize device
expansion ROM.
Minimum guaranteed
time slice allotted for
bus master in units of
PCI bus clocks.

00A0h
00C0h
00E0h

4.3.10 Advanced Submenu Integrated Audio

Integrated Audio: [Enabled]

Setup Item Selections (Default

Item Specific Help

values are in bold)

Integrated Audio: Enabled

Disabled

Enables/Disables the

integrated audio controller.

http://www.tyan.com

39

Thunder i7525 (S2676)

4.3.11 Advanced Submenu Integrated 1394

Integrated 1394: [Enabled]

Setup Item Selections (Default

Item Specific Help

values are in bold)

Integrated 1394: Enabled

Disabled

Enables/Disables the

integrated 1394 controller.

4.3.12 Advanced Submenu Integrated USB

Integrated USB 1.1: [Enabled]
Integrated USB 2.0: [Enabled]
USB Legacy Support: [Enabled]

Setup Item Selections (Default

Item Specific Help

values are in bold)

Integrated USB 1.1: Enabled

Disabled

Integrated USB 2.0: Enabled

Disabled

USB Legacy Support: Enabled

Disabled

Enables or Disables the
USB har dware.
Enables or Disables the
USB 2.0 hardware.
Enable legacy keyboard
support for the
Universal Serial Bus.

4.3.13 Advanced Submenu I/O Device Configuration

Serial Port A: [Auto]
Base I/O Address: [3F8]
Interrupt: [IRQ4]
Parallel Port: [Auto]
Mode: [ECP]

http://www.tyan.com

40

Thunder i7525 (S2676)

Base I/O Address: [378]
Interrupt: [IRQ7]
DMA channel: [DMA3]

Setup Item Selections (Default

Item Specific Help

values are in bold)

Serial Port A: Auto

Enabled
Disabled

Configure serial port
using options:

[Disabled]
No configuration

[Enabled]
User configuration

[Auto]
BIOS or OS chooses
configuration.

Base I/O Address: 3F8

2F8

Set the base I/O address

for the serial port.
3E8
2E8

Interrupt: IRQ3

IRQ4

Parallel Port: Auto

Enabled
Disabled

Set the IRQ for the serial

port.

Configure parallel port

using options:

[Disabled]

No configuration

[Enabled]

User configuration

[Auto]

BIOS or OS chooses

configuration.

Mode: ECP

EPP

Set the mode for the

parallel port.
Bi-directional
Output only

Base I/O Address: 378 Set the base I/O address

http://www.tyan.com

41

Thunder i7525 (S2676)

Configuration of the

278

for the parallel port.
3BC

Interrupt: IRQ5

IRQ7

DMA channel: DMA1

DMA3

Set the IRQ for the

parallel port.

Set the DMA channel for

the parallel port.

4.3.14 Advanced Submenu PCI Configuration

PCI Express x16: [Auto]
? PCI Device, Slot #1
? PCI Device, Slot #2
? PCI Device, Slot #3
? PCI Device, Slot #4
? PCI Device, Slot #5

? PCI/PNP IRQ Exclusion

Setup Item Selections (Default

Item Specific Help

values are in bold)

PCI Express x16 Auto

Disabled
Enabled

Configures the PCI
Express x16 Slot:

[Auto]
BIOS configures the slot.

[Disabled]
Slot is disabled.

[Enabled]
Slot is always enabled.

PCI Device, Slot #1 - Configuration of the

Specific PCI device.

PCI Device, Slot #2 - Configuration of the

Specific PCI device.

PCI Device, Slot #3 -

http://www.tyan.com

42

Thunder i7525 (S2676)

Specific PCI device.

PCI Device, Slot #4 - Configuration of the

Specific PCI device.

PCI Device, Slot #5 - Configuration of the

Specific PCI device.
PCI/PNP IRQ
Exclusion

- Reserve specific IRQs for
use by legacy devices.

4.3.15 Advanced PCI Configuration Submenu PCI Device, Slot #x

Option ROM Scan: [Enabled]
Latency Timer: [Default]

Setup Item Selections (Default

Item Specific Help

values are in bold)

Option ROM Scan: Enabled

Disabled

Latency Timer: Default

0020h
0040h
0060h
0080h

Initialize device
expansion ROM.
Minimum guaranteed
time slice allotted for bus
master in units of PCI
bus clocks.

00A0h
00C0h
00E0h

4.3.16 Advanced PCI Configuration Submenu PCI/PNP IRQ
Exclusion

IRQ3: [Available]
IRQ4: [Available]
IRQ5: [Available]
IRQ7: [Available]
IRQ10: [Available]

http://www.tyan.com

43

Thunder i7525 (S2676)

IRQ11: [Available]

Setup Item Selections (Default

Item Specific Help

values are in bold)

IRQ3 Available

Reserved

Reserves the specified
IRQ for use by legacy
devices.

IRQ4 Available

Reserved

Reserves the specified
IRQ for use by legacy
devices.

IRQ5 Available

Reserved

Reserves the specified
IRQ for use by legacy
devices.

IRQ7 Available

Reserved

Reserves the specified
IRQ for use by legacy
devices.

IRQ10 Available

Reserved

Reserves the specified
IRQ for use by legacy
devices.

IRQ11 Available

Reserved

Reserves the specified
IRQ for use by legacy
devices.

Setup Password Not Installed

User Password Not Installed
Set Setup Password: [Enter]

Set User Password: [Enter]

Password on boot: [Disabled]
Start from Floppy: [Enabled]

Start from IDE CD -ROM: [Enabled]
Setup Prompt: [Enabled]
Fixed disk boot sector: [Normal]

Write on Flexible Disks: [Disabled]
BIOS Write Protect: [Disabled]

4.4 – Security Menu

http://www.tyan.com

44

Thunder i7525 (S2676)

Cabinet Monitoring: [Disabled]
Trusted Platform Module: [Disabled]

Setup Item Selections (Default

Item Specific Help

values are in bold)

Setup Password ‘Installed’ or ‘Not

-

Installed’

User Password ‘Installed’ or ‘Not

-

Installed’

Set Setup Password: Enter Setup Password controls

access to the setup utility.
Use at least 4 characters

for the password;
otherwise the system can
be tampered easily.

Set User Password: Enter User Password controls

access to the system at
boot.

Use at least 4 characters
for the password;
otherwise the system can
be tampered easily.

Password on boot: Disabled

Enabled

Start from Floppy: Enabled

Disabled

Enable/Disable password
entry on boot.
Allows you to disable the
boot from diskette.

The drive will still be
available for reading and

writing data.
Start from IDE CD­ROM:

Enabled

Disabled

Allows you to disable the

boot from CD -ROM.

The drive will still be

available for reading and

writing data.
Setup Prompt: Enabled

Disabled

Display setup entry

prompt on boot; disabled

http://www.tyan.com

45

Thunder i7525 (S2676)

Selections (Default

doesn´t prevent setup

entry.
Fixed disk boot sector: Normal

Write Protect

Write protects bo ot sector

on hard disk to protect

against viruses.
Write on Flexible
Disks:

Unlocked

Locked

[Unlocked]

Data can be written to

floppy disk.

[Locked]

No data can be written to

floppy disk.
BIOS Write Protect: Disabled

Enabled

When set to enabled the

BIOS Flash Memory will

be write protected.
Cabinet Monitoring: Disabled

Enabled

When enabled, the

system’s housing is

monitored.
Trusted Platform
Module:

Disabled

Enabled

Allows to enable the

Trusted Platform Module

(TPM).

4.5 – Power Menu

APM Interface: [Enabled]
APM Power Saving: [Customized]
Standby Timeout: [15 min]
Suspend Timeout: [Disabled]

APM Resume Timer: [Disabled]
APM Resume Time: [00:00:00]

Power-on via LAN: [Enabled]
Power-off via Keyboard: [Disabled]

Power Failure Recovery: [Last State]

Setup Item

Item Specific Help

46

http://www.tyan.com

Thunder i7525 (S2676)

Specify

the time when the

values are in bold)

APM Interface: Enabled

Disabled

Enable/Disable Advanced
Power Management
(APM) BIOS-interface for
non-ACPI operating
systems.

APM Power Saving: Disabled

Customized

Maximum Power
Savings
Minimum Power
Savings

Configure the BIOS­controlled APM.

[Disabled]
No BIOS-controlled
power management.

[Customized]
User-defined power
management.

[Maximum Power Saving]
Minimum power
consumption.

[Minimum Power Saving]
Maximum power
consumption.

Standby Timeout: Disabled

2 min
5 min
10 min

15 min

Time the system is
inactive before entering
Standby mode. In
Standby mode the screen
is dark.

30 min

Suspend Timeout: Disabled

2 min
15 min
30 min
1 h

Time the system is in
Standby mode before
entering Suspend mode.
In Suspend mode the
CPU is stopped.

2 h

APM Resume Timer: Disabled

Enabled

Resume at a specified
time from Suspend mode.
Valid for non-ACPI
operating systems.

APM Resume Time: 00:00:00 ... 23:59:59

system is to wake up.
<Tab>, <Shift-Tab> or
<Enter> selects input

http://www.tyan.com

47

Thunder i7525 (S2676)

fields.

Power-on via LAN: Enabled

Disabled

Allows the system to be
switched on via a LAN

wakeup.
Power-off via
Keyboard:

Disabled

Enabled

Allows the system to be

switched off via power

button on the keyboard.
Power Failure
Recovery:

Last State

Stay Off
Power On

After recovery form power

failure:

[Stay off]

Switch off.

[Power On]

Switch on.

[Last State]

Switch to the state the

system was in before

power failure.

Halt on POST Errors: [Enabled]
Fast Boot: [Enabled]
Quiet Boot: [Enabled]
Boot Menu: [Enabled]

? Boot Device Priority

4.6 – Boot Menu

Setup Item Selections (Default

Item Specific Help

values are in bold)

Halt on POST Errors: Enabled

Disabled

Pauses and displays
setup entry or resume
boot prompt if error
occurs at boot. If
disabled, system always
attempts to boot.

Fast Boot: Enabled Allows the system to

http://www.tyan.com

48

Thunder i7525 (S2676)

Disabled skip certain tests while

booting. This will
decrease the time
needed to boot the
system.

Quiet Boot: Enabled

Disabled

Boot Menu: Enabled

Disabled

Minimal startup display
during boot.
Allows you to bypass
the normal sequence of
boot devices. Before
loading the OS press
<F12> and select an
alternate boot device
from a menu.

Boot De vice Priority - Select which order the

BIOS should use
between devices when
trying to boot.

4.6.1 Boot Submenu Boot Device Priority

+ Removable Devices
+ Hard Drives
+ CD-ROM Drives
Network Boot

Setup Item Selections (Default

Item Specific Help

values are in bold)

- - Keys used to view or

configure devices:
<Enter> expands or

collapses devices.
<Ctrl+Enter> expands all
<Shift+1> enables or
disables a device.
<d> Remove a device
that is not installed.
<+> and <-> moves the
device up or down.
<n> Move a removable

http://www.tyan.com

49

Thunder i7525 (S2676)

device between Hard Disk
or Removable Disk

4.7 – Exit Menu

Save Changes & Exit
Discard Changes & Exit
Get Default Values
Load Previous Values

Setup Item Selections (Default

Item Specific Help

values are in bold)

Save Changes & Exit - Exit System Setup and

save your changes to
CMOS.

Discard Changes & Exit - Exit utility without

saving Setup data to
CMOS.

Get Default Values - Load default values for

all Setup items.

Load Previous Values - Load Previous values

from CMOS for all
Setup items.

http://www.tyan.com

50

Thunder i7525 (S2676)

Chapter 5: Diagnostics

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

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.

Memory, Video, CPU

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.

The most common type of error is a memory error.
Before contacting your vendor or TYAN Technical Support, be sure that you note as much as you

can about the beep code length and order that you experience. Also, be ready with information
regarding add-in cards, drives and O/S to speed the support process and come to a quicker
solution.

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,
please check the TYAN web site: http://www.tyan.com/

Note: Please be aware that by flashing your BIOS, you agree that in the event of a BIOS flash
failure, you must contact your dealer for a replacement BIOS. Th ere are no exceptions. TYAN
does not have a policy for replacing BIOS chips directly with end users. In no event will TYAN be
held responsible for damages done by the end user.

5.1 Beep Codes

http://www.tyan.com

51

Thunder i7525 (S2676) Appendix I: Glossary

Appendix I: 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. No te 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.

http://www.tyan.com

54

Thunder i7525 (S2676) Appendix I: Glossary

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
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 DIM M 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

http://www.tyan.com

55

Thunder i7525 (S2676) Appendix I: Glossary

EMRL: Embedded RAID Logic. An Adaptec specific RAID technology.
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.
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 process where two devices initiate communications. One device, typically the

server, sends a message to another device, typically a client, in order to request establishment of
a communications channel. The two devices will then exchange messages back and forth in order
to settle on a communications protocol.

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).

http://www.tyan.com

56

Thunder i7525 (S2676) Appendix I: Glossary

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).
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 type of RAM that can maintain it’s data as long as power is provided to

the memory chips. In this configuration, SRAM requests are pipelined, which means that larger
packets of data are sent to the memory at one time, and acted upon quickly. This type of SRAM
operates at bus speeds higher than 66MHz.

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.

http://www.tyan.com

57

Thunder i7525 (S2676) Appendix I: Glossary

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 will appear as a single drive to the operating system. RAID level 0 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.

RAIDIOS: stands for RAID I/O Steering, a type of RAID technology from Intel. RAIDIOS is a
specification used to enable an embedded I/O controller, embedded on the motherboard, to be
used as just an I/O controller or to be the I/O component of a hardware RAID subsystem. The
RAIDIOS circuit allows an I/O Processor (either embedded on the motherboard or on an add-in
card) to configure the I/O controller and service the I/O controller’s interrupts. The I/O controller
and the I/O Processor together are two of the primary components of a hardware RAID
subsystem.

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.

SATA (Serial ATA): is an evolutionary replacement for the Parallel ATA physical storage
interface. Serial ATA is a drop-in solution in that it is compatible with today’ s software and
operating systems. It will provide for systems which are easier to design, with cables that are
simpler to route and install, smaller cable connectors, and lower voltage requirements.

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.

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. SISL: SCSI Interrupt Steering Logic ( LSI ) (only on LSI SCSI boards)

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.
SRAM (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.
SSI (Server System Infrastructure): an industry initiative intended to provide ready-to-use

design specifications for common server hardware elements (chassis, power supplies, and racks)
to promote and support server industry growth.

http://www.tyan.com

58

Thunder i7525 (S2676) Appendix I: Glossary

Standby mode: in this mode, the video and hard drives shut down; all other devices c ontinue 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.
ZCR: Zero Channel RAID. PCI card that allows a RAID card to use the onboard SCSI chip, thus

lowering cost of RAID solution
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.

http://www.tyan.com

59

Thunder i7525 (S2676) Appendix II: Post Error Code for BIOS

Appendix II: Post Error Code for BIOS

POST (hex) Description
CFh: Test CMOS R/W functionality.
C0h: Early chipset initialization:

-Disable shadow RAM

-Disable L2 cache (socket 7 or below)

-Program basic chipset registers
C1h: Detect memory

-Auto-detection of DRAM size, type and ECC.

-Auto-detection of L2 cache (socket 7 or below)

C3h: Expand compressed BIOS code to DRAM
C5h: Call chipset hook to copy BIOS back to E000 & F000 shadow RAM.
01h: Expand the Xgroup codes locating in physical address 1000:0
03h: Initial Superio_Early_Init switch.
05h: 1. Blank out screen

2. Clear CMOS error flag
07h: 1. Clear 8042 interface

2. Initialize 8042 self-test
08h: 1. Test special keyboard controller for Winbond 977 series Super I/O

2. Enable keyboard interface.

0Ah: 1. Disable PS/2 mouse interface (optional).

0Eh: Test F000h segment shadow to see whether it is R/W-able or not. If

test fails, keep beeping the speaker.

10h: Auto detect flash type to load appropriate flash R/W codes into the

12h: Use walking 1’s algorithm to check out interface in CMOS circuitry. Also

14h: Program chipset default values into chipset. Chipset default values are

16h: Initial onboard clock generator if Early_Init_Onboard_Generator is

chips.

2. Autodetect ports for keyboard & mouse followed by a port & interface swap
(optional).

3. Reset keyboard for Winbond 977 series Super I/O chips.

run time area in F000 for ESCD & DMI support.

set real-time clock power status, and then check for override.

MODBINable by OEM customers.

defined.
See also POST 26h.

http://www.tyan.com

60

Thunder i7525 (S2676) Appendix II: Post Error Code for BIOS
POST (hex) Description

18h: Detect CPU information including brand, SMI type (Cyrix or Intel) and

1Bh: Initial interrupts vector table. If no special specified, all H/W interrupts are

1Dh: Initial EARLY_PM_INIT switch.
1Fh: Load keyboard matrix (notebook platform)
21h: HPM initialization (notebook platform)
23h: 1. Check validity of RTC value:

24h: Prepare BIOS resource map for PCI & PnP use. If ESCD is valid, take

25h: Early PCI Initialization:

-Enumerate PCI bus number.

-Assign memory & I/O resource

-Search for a valid VGA device & VGA BIOS, and put it into C000:0

26h: 1. If Early_Init_Onboard_Generator is not defined Onboard clock

27h: Initialize INT 09 buffer
29h: 1. Program CPU internal MTRR (P6 & PII) for 0-640K memory address.

2Bh: Invoke Video BIOS
2Dh: 1. Initialize double-byte language font (Optional)

33h: Reset keyboard if Early_Reset_KB is defined e.g. Winbond 977 series

35h: Test DMA Channel 0

POST (hex) Description

CPU level (586 or 686).

directed to SPURIOUS_INT_HDLR & S/W interrupts to
SPURIOUS_soft_HDLR.

e.g. a value of 5Ah is an invalid value for RTC minute.

2. Load CMOS settings into BIOS stack. If CMOS checksum fails, use

default value instead.

into consideration of the ESCD’s legacy information.

generator initialization. Disable respective clock resource to empty PCI
& DIMM slots.

2. Init onboard PWM

3. Init onboard H/W monitor devices

2. Initialize the APIC for Pentium class CPU.

3. Program early chipset according to CMOS setup. Example: onboard
IDE controller.

4. Measure CPU speed.

2. Put information on screen display, including Award title, CPU type,

CPU speed, full screen logo.

Super I/O chips. See also POST 63h.

61

http://www.tyan.com

Thunder i7525 (S2676) Appendix II: Post Error Code for BIOS
37h: Test DMA Channel 1.

39h: Test DMA page registers.
3Ch: Test 8254
3Eh: Test 8259 interrupt mask bits for channel 1.
40h: Test 8259 interrupt mask bits for channel 2.
43h: Test 8259 functionality.
47h: Initialize EISA slot
49h: 1. Calculate total memory by testing the last double word of each 64K

4Eh: 1. Program MTRR of M1 CPU

50h: Initialize USB Keyboard & Mouse.
52h: Test all memory (clear all extended memory to 0)
53h: Clear password according to H/W jumper (Optional)
55h: Display number of processors (multi-processor platform)
57h: 1. Display PnP logo

59h: Initialize the combined Trend Anti-Virus code.
5Bh: (Optional Feature)

Show message for entering AWDFLASH.EXE from FDD (optional)

5Dh: 1. Initialize Init_Onboard_Super_IO

60h: Okay to enter Setup utility; i.e. not until this POST stage can users enter

63h: Reset keyboard if Early_Reset_KB is not defined.
65h: Initialize PS/2 Mouse
POST (hex) Description
67h: Prepare memory size information for function call: INT 15h ax=E820h

page.

2. Program write allocation for AMD K5 CPU.

2. Initialize L2 cache for P6 class CPU & program CPU with proper

cacheable range.

3. Initialize the APIC for P6 class CPU.

4. On MP platform, adjust the cacheable range to smaller one in case the
cacheable ranges between each CPU are not identical.

2. Early ISA PnP initialization

-Assign CSN to every ISA PnP device.

2. Initialize Init_Onbaord_AUDIO.

the CMOS setup utility.

62

http://www.tyan.com

Thunder i7525 (S2676) Appendix II: Post Error Code for BIOS
69h: Turn on L2 cache

6Bh: Program chipset registers according to items described in Setup & Auto-

6Dh: 1. Assign resources to all ISA PnP devices.

6Fh: 1. Initialize floppy controller

75h: Detect & install all IDE devices: HDD, LS120, ZIP, CDROM…..
76h: (Optional Feature)

Enter AWDFLASH.EXE if:

-AWDFLASH.EXE is found in floppy drive.

-ALT+F2 is pressed.

77h: Detect serial ports & parallel ports.
7Ah: Detect & install co-processor
7Ch: Init HDD write protect.
7Fh: Switch back to text mode if full screen logo is supported.

configuration table.

2. Auto assign ports to onboard COM ports if the corresponding item in

Setup is set to “AUTO”.

2. Set up floppy related fields in 40:hardware.

-If errors occur, report errors & wait for keys

-If no errors occur or F1 key is pressed to continue:

wClear EPA or customization logo.

http://www.tyan.com

63

Thunder i7525 (S2676) Appendix II: Post Error Code for BIOS

E8POST.ASM starts Description
82h: 1. Call chipset power management hook.

83h: Save all data in stack back to CMOS
84h: Initialize ISA PnP boot devices
85h: 1. USB final Initialization

87h: NET PC: Build SYSID Structure.
89h: 1. Assign IRQs to PCI devices

8Bh: 1. Invoke all ISA adapter ROMs

8Dh: 1. Enable/Disable Parity Check according to CMOS setup

8Fh: Clear noise of IRQs
93h: Read HDD boot sector information for Trend Anti-Virus code
94h: 1. Enable L2 cache

95h: Update keyboard LED & typematic rate
96h: 1. Build MP table

FFh: Boot attempt (INT 19h)

2. Recover the text fond used by EPA logo (not for full screen logo)

3. If password is set, ask for password.

2. Switch screen back to text mode

2. Set up ACPI table at top of the memory.

2. Invoke all PCI ROMs (except VGA)

2. APM Initialization

2. Program Daylight Saving

3. Program boot up speed

4. Chipset final initialization.

5. Power management final initialization

6. Clear screen & display summary table

7. Program K6 write allocation

8. Program P6 class write combining

2. Build & update ESCD

3. Set CMOS century to 20h or 19h

4. Load CMOS time into DOS timer tick

5. Build MSIRQ routing table.

http://www.tyan.com

64

Thunder i7525 (S2676) Compliance Information

2. See the TYAN website for FAQ’s, bulletins, driver updates, and

Technical Support

If a problem arises with your system, you should first turn to your dealer for direct support. Your
system has most likely been configured or designed by them and they should have the best idea
of what hardware and software your system contains. Hence, they should be of the most
assitance for you. Furthermore, if you purchased your system from a dealer near you, take the
system to them directly to have it serviced instead of attempting to do so yourself (which can have
expensive consequences).

If these options are not available for you then Tyan Computer Corporation can help. Besides
designing innovative and quality products for over a decade, Tyan has continuously offered
customers service beyond their expectations. Tyan's website ( www.tyan.com) provides
easy-to-access resources such as in-depth Linux Online Support sections with downloadable
Linux drivers and comprehensive compatibility report s for chassis, memory and much more. With
all these convenient resources just a few keystrokes away, users can easily find the latest
software and operating system components to keep their systems running as powerful and
productive as possible. Tyan also ranks high for its commitment to fast and friendly customer
support through email. By offering plenty of options for users, Tyan serves multiple market
segments with the industry's most competitive services to support them.

"Tyan's tech support is some of the most impressive we've seen, with great response time and
exceptional organization in general." - Anandtech.com

Please feel free to contact us directly for this service at [e-mail]
Help Resources:

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

http://www.tyan.com

65

Thunder i7525 (S2676) Compliance Information

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:

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.)

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.

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

• 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 Europe (CE Mark)
This product is in conformity with the Council Directive 89/336/EEC,
92/31/EEC (EMC).

Document #: D1588 - 100

http://www.tyan.com

66