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 HEsl-T S2688 are trademarks of TYAN Computer Corporation.
Intel, Intel Pentium, combinations thereof are trademarks of Intel Corporation.
ServerWorks, ServerSet III HE-SL, combinations thereof are trademarks of BC/ServerWorks, Corp.
Adaptec is a trademark of Adaptec, Inc.
AMI, AMI BIOS 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.
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 Thunder HEsl-T motherboard, the most reliable, high
performance motherboard for dual Pentium III processing. Designed to be portable as well as
flexible, the Thunder HEsl-T can fit into standard ATX chassis and 2U rackmount chassis. This
platform utilizes ServerWorks’ high-performance ServerSet III HE-SL chipset, enabling next
generation application and platform support. Intel Pentium III processors between 500MHz and
1.266GHz* are supported in single and dual configuration. *Please see TYAN’s website for
updates and information concerning CPU information and support:
http://www.tyan.com
This integrated performance board is supported in an ATX form factor. Features of the Thunder
HEsl-T include onboard UltraDMA-33 (Ultra160SCSI with onboard Adaptec controller) and
multiple boot options.
With both I/O and drive controller support onboard, dual 64-bit PCI slots provide upgrade solutions
for future add-in cards. Integrated 2D/3D graphics provided by the onboard ATI RAGE XL
controller enables ease of use into 2U and larger, chassis. Dual onboard LAN ports provide
connectivity without add-in overhead.
The Thunder HEsl-T supports up to 6GB of Registered ECC PC133 SDRAM.
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 explainations.
1.2 Hardware Specifications
Processor
• Dual PGA370 ZIF sockets
• Supports up to two Intel Pentium III
processors
• Supports Intel’s Pentium III Processor DP
• One onboard VRM (VRM 8.5) supports 2
CPUs
• Front-side bus support for 100/133MHz
Chipset
• ServerWorks ServerSet III HE-SL
• Integrated I/O APIC
• CSB5 south bridge
• CIOB north bridge
• National 87417 Super I/O ASIC
Memory
• Four 3.3v 168-pin DIMM sockets
• Supports up to 6GB of Registered
PC133/100 SDRAM
• Supports ECC (72-bit) memory
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Integrated LAN
• Dual Intel 82559 LAN controllers
• 10/100Mbps max data rate per controller
Integrated 2D/3D Graphics
• ATI RAGE XL graphics controller
• 4MB frame buffer (SDRAM)
• Standard 15-pin analog VGA port
Integrated SCSI (manufacturing option)
• Adaptec AIC-7899W controller
• Dual-channel Ultra160 SCSI support
• 160MB/sec max data throughput per
channel
• Supports up to 4 LVD SCSI devices per
channel
Hardware Monitoring
• Winbond W83782D hardware monitoring
ASIC
• CPU Temp, voltage and fan monitoring
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Expansion Slots
• 4 64-bit/66MHz (three 5v, one 3.3v) PCI
slots
• 2 32-bit/33MHz PCI slots
Integrated PCI IDE
• Dual-channel master mode
• Up to four E-IDE drives
• Support for DMA/ATAPI devices
Integrated I/O
• One floppy connector supports up to two
drives (second one via optional slim FD
connector)
• Two 9-pin 16550-based serial ports (one via
optional cable)
• One 25-pin SPP/ECP/EPP parallel port (via
optional cable)
• Four USB ports (two via optional cable)
• PS/2 keyboard and mouse ports
1.3 Software Specifications
OSWindows NT/2000
BIOS
• AMI 4Mb BIOS Flash ROM
• Auto-configure IDE drive types
• Multiple boot options
• DMI 2.0 compliant
Form Factor
• ATX footprint (12” x 9.6”, 304.8mm x
243.84mm
• One 20-pin ATX power connector
• One Serial port and one VGA port
• Stacked USB (two) ports
• Side-by-side LAN (two) ports
• Stacked keyboard and mouse ports
Regulatory
• FCC DoC (declaration of Conformity)
• European Community of CE (declaration of
Conformity)
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Chapter 2: Board Installation
Installation
You are now ready to install your motherboard. The mounting hole pattern of the Thunder HEsl-T
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.
NOTEDO 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
2.2 – Front Panel Connector (J26)
1715131197531
18161412108642
1,3: HD LED
2,4: Power LED
5,7: Reset Switch
6,8: Power Switch
2.3 – CMOS Reset (JP8)
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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.
- Power off the system and disconnect the power supply.
- Close pins 1 and 2 on JP8
- Wait about 5 seconds
- Open pins 1 and 2 on JP8
- Reconnect the power supply and power on the system
2.4 – Force 33MHz Click for PCI Bus 1 (JP12)
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Closed: All devices on PCI Bus1 (slots J31, J32, J33) will run at 33MHz Only.
Open (default): PCI Bus1 can run at 66MHz or 33MHz. Actual speed is determined
by the PCI card(s) plugged into J31/J32/J33. If any card is only 33MHz capable, all
cards in Bus1 will run at 33MHz. If all cards support 66MHz, or if no cards are
installed, then Bus1 will run at 66MHz.
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