Tyan S1590
Trinity 100AT
Motherboard User's Manual
Revision 1.50
Copyright © Tyan Computer Corporation, 1999. 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 propery of their respective companies including, but not limited to the
AwardBIOS is a trademark of Award Software Inc.
Windows is a trademark of Microsoft Corporation.
IBM, PC, AT, PS/2 are trademarks of IBM Corporation.
INTEL, Pentium, Pentium MMX are trademarks of Intel Corporation.
S1590 Trinity 100AT is a trademark of TYAN Computer Corporation.
Information contained in this publication has been carefully checked for accuracy and
reliability. In no event will Tyan Computer 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 manual. The information
contained in this document is subject to change without notice.


   Summary of Contents for TYAN TRINITY 100AT

  • Page 1

    Information contained in this publication has been carefully checked for accuracy and reliability. In no event will Tyan Computer 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 manual.

  • Page 2: Table Of Contents

    Table of Contents 1. Introduction.....................4 Overview..................... 4 Icons......................5 Hardware Specifications/Features............5 Software Specifications................7 Technical Support..................7 Returning Merchandise for Service............8 2. Board Installation..................9 Unpacking....................9 Precautions....................9 Installation Steps..................10 What is a Jumper?..................11 Map of Motherboard Jumpers..............12 Picture of Motherboard Features............13 Setting Jumpers..................14 Mounting the Motherboard in the Chassis...........17 Installing Memory..................17...

  • Page 3

    Appendix 1 - Glossary..................66...

  • Page 4: Introduction, Overview

    Introduction Introduction Overview The S1590S-100 (S1590) Trinity 100AT is a quality, high performance mainboard designed for Socket 7 microprocessors. This mainboard utilizes the VIA MVP3 100MHz AGPset and host bus speeds of 66MHz to 100MHz. For CPU speed support, please refer to the CPU Compatibility Chart in Tyan’s website (

  • Page 5: Icons, Hardware Specifications/features

    Remember to take a look at TYAN Computer’s web site located at There you can find information on all of TYAN’s products along with FAQs, distributors list, drivers, and BIOS setting explana- tions. Icons In order to help you navigate this manual and set up your system, we have added several icons to our format.

  • Page 6

    Disk Drive & System I/O •UltraDMA/33 (UIDE) built-in (up to 33MB/s DTR). •Two PCI bus mastering EIDE channels. •Supports EIDE CD-ROMs. •PIO Mode 3+4 (up to 17MB/s DTR). •Bus mastering mode (up to 22MB/s DTR). •Support for two floppy drives

  • Page 7: Software Specifications, Technical Support

    Help resources: 1. See FAQ and beep codes sections of this manual. 2. See Tyan web site for FAQ, bulletins, driver updates, etc. 3. Contact your dealer or distributor for help BEFORE calling Tyan. 4. Email Tyan tech support:

  • Page 8: Returning Merchandise For Service

    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, or hand-carried to the manufacturer. TYAN will pay to have the board shipped back to you.

  • Page 9: Board Installation, Unpacking, Precautions

    What’s the first thing I should do? 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 follow when installing your mother- board: S1590 Trinity 100AT...

  • Page 10: Installation Steps

    S1590 matches the Baby AT system board specifications. Your chassis should have standard AT mainboard form factor mounting holes and either an AT or ATX power supply. 1. Set Jumpers 2. Mount Motherboard in Chassis 3. Install Memory procedure

  • Page 11: What Is A Jumper

    A full-page map of the motherboard can be found on the next two pages. 3 (or more) pin jumpers 2 pin jumpers open Figure 2-1 Figure 2-2 S1590 Trinity 100AT...

  • Page 12: Map Of Motherboard Jumpers

    3 volt lithium VIA MVP3 battery chipset VIA MVP3 chipset JPW1 JVBAT JP11 (Fan) J4 (CPU Fan) JP10 The tiny number “1”s next to jumpers of 3 pins or more indicate the position of pin 1 for that jumper.

  • Page 13: Picture Of Motherboard Features

    Picture of Motherboard Features PS/2 mouse port 4 PCI slots 4 ISA slots header Keyboard Award BIOS port 3 DIMM slots ZIF Socket 7 temperature 1MB L2 2 SIMM slots sensor cache S1590 Trinity 100AT...

  • Page 14: Setting Jumpers

    100 memory to run at a bus speed of 100MHz. important! Tyan does not recommend operating CPUs, memory or PCI bus at higher than rated speed. Tyan takes no responsibility for any problems related to overclocking any bus or componenet on the system board. JPW1 1-D.

  • Page 15

    **Note: JP7 and JP14 are provided on 12,13 some S1590 boards. If your board does JP11 not have JP7 and JP14, please disregard the above chart - the correct settings are already built-in to the motherboard. (Fan) JP7, (CPU Fan) JP14 S1590 Trinity 100AT...

  • Page 16

    Pressing it again will reboot JVBAT1 the system. Speaker Connector Installation The Trinity 100AT provides a 4-pin header to connect the speaker. The speaker is con- nected to pins 24-27 of jumper block J5. Hardware Reset Switch Connector Installation The Reset switch on your case’s display panel provides you with the Hardware...

  • Page 17: Mounting The Motherboard In The Chassis, Installing Memory

    3V lithium battery (Sony CR2032). Flash EEPROM The Trinity 100AT uses flash memory to store BIOS programs. It can be easily updated if necessary using the flash utility (see page 59). Tyan does not recommend flashing the BIOS unnecessarily. Check the Tyan web site for the latest BIOS revision.

  • Page 18

    Place the DIMMs in an anti-static bag as soon as you remove them to avoid static damage. The Trinity 100AT uses a 64-bit data path from memory to CPU and can accommodate up to 384MB of SDRAM. The 168-pin DIMMs (Dual In-line Memory Modules) must be of the 3.3V, unbuffered variety.

  • Page 19

    • The mainboard supports 4MB, 8MB, 16MB, 32MB, and 64MB SIMMs. • You can install either single- or double-sided SIMMs. • Two SIMMs or one unbuffered DIMM must be installed for the system to S1590 Trinity 100AT...

  • Page 20

    Note: You can NOT use DIMM Bank 1 and SIMM Bank 1 at the same time! Bank 1 can not be shared! Cache Memory The S1590 has 1024Kbit of onboard pipeline burst SRAM. This SRAM cannot be upgraded.

  • Page 21: Installing The Cpu And Cooling Fan

    CPU. A squeaking noise is normal as the arm lowers. After the CPU is securely seated, install the appropriate cooling device (Figure 2- 7). Tyan strongly recomends a heatsink/fan combination. Consult with your case manufacturer for other cooling options.

  • Page 22: Connecting Ide And Floppy Drives

    Hard disk drives are not auto-detected: may be a Master / Slave problem or a bad IDE cable. Contact your vendor. • Hard Disk Drive Fail message at bootup: may be a bad cable or lack of power going to the drive.

  • Page 23

    Drive A: is usually attached to the end of the cable with the twist in it. Drive B: is usually connected to the middle of the cable. Figure 2-10 Refer to your installation S1590 Trinity 100AT...

  • Page 24: Connecting The Power Supply

    6. Connecting the Power Supply The Trinity 100AT has both AT and ATX power supply connectors. The photos below show the ATX power connector before (Figure 2-12) and after (Figure 2-13) it has been plugged in. The plastic clip on the power connector should lock over the plastic tab on the onboard connector.

  • Page 25

    Note: If you use an ATX power supply, Tyan recommends using one that conforms to industry standard revision 2.01. If you decide to use an AT power supply instead, connect the power supply to the board as shown in Figure 2-14 (on the following page).

  • Page 26: Installing Add-on Cards

    Before turning on the system, make sure no cards are touching If you follow these basic guidelines, there shouldn’t be any problems with installation. However, if you do encounter any problems, have a qualified professional install your cards for you or contact your card manufacturer.

  • Page 27

    Figure 2-15 Other cables will not work on TYAN boards. The Printer and Com1 ports are on the same back plate. You want to make sure that you correctly align the connectors with the pins on the board beacuse they are easy to miss. On most TYAN cables, there should be a pin missing on the motherboard.

  • Page 28

    If you did encounter problems, your dealer will be able to help you, or you can consult one of our many technical support resources (see page 7).

  • Page 29: Frequently Asked Questions

    A: JP11 is a split-voltage setting. You should leave the jumper CLOSED if you are using a P54C CPU (non-MMX CPU). Otherwise, you should leave the jumper OPEN if you are using a P55C CPU or AMD K6 and above. S1590 Trinity 100AT...

  • Page 30

    A: Pin#1 for JVBAT1 is the one closest to the VIA MVP3 chipset. Q: Does the motherboard support x2 AGP? A: Yes, the S1590S Trinity 100AT supports x2 AGP. Q: What drivers do I install from the CD-ROM provided with the Trinity S1590...

  • Page 31

    JP7 and JP14 CLOSED or ON. If you have an ATX power supply, have them both OPEN or OFF. Most newer versions of the S1590S motherboard do not have Jumpers JP14 or JP7 - if so, please disregard this FAQ (the settings are preset and built-in to the motherboard). S1590 Trinity 100AT...

  • Page 32: Bios Configuration, Introduction To Setup

    Setup. Starting Setup The EliteBIOS is immediately activated when you first turn on the computer. The BIOS reads system configuration information in CMOS RAM and begins

  • Page 33: Setup Keys, Getting Help, In Case Of Problems

    If, after making and saving system changes with Setup, you discover that your computer no longer is able to boot, the EliteBIOS supports an override to the CMOS settings that resets your system to its default configuration. S1590 Trinity 100AT...

  • Page 34

    Chipset screen without a good reason. The Chipset defaults have been carefully chosen by Award Software or your system manufacturer for the best performance and reliability. Even a seemingly small change to the Chipset setup may causing the system to become un- stable.

  • Page 35: Main Setup Menu

    HDD LOW LEVEL FORMAT LOAD BIOS DEFAULTS SAVE & EXIT SETUP LOAD SETUP DEFAULTS EXIT WITHOUT SAVING Esc : Quit : Select Item F10 : Save & Exit Setup (Shift)F2 : Change Color Time, Date, Hard Disk Type ... S1590 Trinity 100AT...

  • Page 36

    BIOS defaults are factory settings for the most stable, minimal-performance system operations. Load Setup Defaults Setup defaults are factory settings for optimal-performance system operations. Save & Exit Setup Save settings in nonvolatile CMOS RAM and exit Setup. Exit Without Saving

  • Page 37: Standard Cmos Setup

    The time format is based on the 24-hour military-time clock. For example, 1 p.m. is 13:00:00. Press the arrow keys to move to the desired field. Press the PgUp or PgDn key to increment the setting, or type the desired value into the field. S1590 Trinity 100AT...

  • Page 38

    LBA (Logical Block Addressing): During drive accesses, the IDE controller transforms the data address described by sector, head, and cylinder number into a physical block address, significantly improving data transfer rates. For drives with greater than 1024 cylinders.

  • Page 39

    , r o l l a , l l . s r e t t , s r , l l e t t . s r , r o , l l . s r S1590 Trinity 100AT...

  • Page 40: Bios Features Setup

    PC AT BIOS. This section describes all fields offered by Award Software in this screen. The example screen below may vary from the one in your Setup program. Your system board designer may omit or modify some fields.

  • Page 41

    Dis abled Dis abled OS Selec t For DRA M > 64MB Non-OS2 Non-OS2 V ideo BIOS Shadow Enabled Enabled C8000-CBFFF Shadow Dis abled Dis abled CC000-CFFFF Shadow Dis abled Dis abled D0000-D3FFF Shadow Dis abled Dis abled S1590 Trinity 100AT...

  • Page 42

    CD-ROM drive. The BIOS now offers a large number of boot devices and boot sequence options. Swap Floppy Drive This field is effective only in systems with two floppy drives. Selecting

  • Page 43

    When the typematic rate setting is enabled, you can select a typematic rate (the rate at which character repeats when you hold down a key) of 6, 8, 10,12, 15, 20, 24 or 30 characters per second. S1590 Trinity 100AT...

  • Page 44

    BIOS Features Setup screen may be occupied by other expan- sion card firmware. If an expansion peripheral in your system contains ROM- based firmware, you need to know the address range the ROM occupies to shadow it into the correct area of RAM.

  • Page 45: Chipset Features Setup

    : 64M CPU Fan On/Off On Suspend : ON ESC : Quit : Select Item F1 : Help PU/PD/+/- : Modify F5 : Old Values (Shift)F2 : Color F6 : Load BIOS Defaults F7 : Load Setup Defaults S1590 Trinity 100AT...

  • Page 46

    For a secondary cache of one bank, select Faster. For a secondary cache of two banks, select Fastest. Video BIOS Cacheable Selecting Enabled allows caching of the video BIOS ROM at C0000h to C7FFFh, resulting in better video performance. However, if any program writes

  • Page 47

    DRAM is written to, read from, or refreshed. Fast gives faster performance; and Slow gives more stable performance. This field applies only when synchronous DRAM is installed in the system. OnChip USB The chipset contains an integrated USB controller. Select Enabled if you have USB peripherals. S1590 Trinity 100AT...

  • Page 48: Power Management Setup

    MODEM Use IRQ Soft-Off by PWRBTN Delay 4 sec. Instant Off HDD Pow er Dow n Disabled Disabled Doze Mode Disabled Disabled Suspend Mode Disabled Disabled LPT & COM LPT / COM LPT / COM HDD & FDD DMA/master

  • Page 49: Acpi Function

    . ) e PM Control by APM If Advanced Power Management (APM) is installed on your system, selecting Yes gives better power savings. S1590 Trinity 100AT...

  • Page 50

    The following modes are Green PC power saving functions that are user- configurable only in User Defined Power Management mode. HDD Power Down After the selected period of drive inactivity (1 to 15 minutes), the hard disk drive powers down while all other devices remain active.

  • Page 51

    When the system is in Suspend mode, IRQ activity can cause a Primary or Secondary wake-up. When Primary INTR is On, the IRQs in the above fields can be configured as Primary, Secondary, or Disabled. S1590 Trinity 100AT...

  • Page 52

    The following is a list of IRQs (Interrupt Request Lines) assigned to common system peripherals. IRQ3 (COM2) IRQ10 (Reserved) IRQ4 (COM1) IRQ11 (Reserved) IRQ5 (LPT2) IRQ12 (PS/2 Mouse) IRQ6 (Floppy Disk) IRQ13 (Coprocessor) IRQ7 (LPT1) IRQ14 (Hard Disk) IRQ8 (RTC Alarm) IRQ15 (Reserved) IRQ9 (IRQ2 Redir)

  • Page 53: Pnp/pci Configuration

    PCI#2 Access #1 Retry Disabled Disabled AGP Master 1 WS Write Disabled Enabled AGP Master 1 WS Read Disabled Disabled PCI IRQ Activated By Level Level Assign IRQ for USB Enabled Enabled Assign IRQ for VGA Disabled Enabled S1590 Trinity 100AT...

  • Page 54

    When this field is Enabled, writes from the CPU to the PCI bus are buffered, to compensate for the speed differences between the CPU and the PCI bus. When Disabled, the writes are not buffered and the CPU must wait until the write is complete before starting another write cycle.

  • Page 55

    Edge-triggered interrupts. Assign IRQ for USB Assign an IRQ number to the onboard USB port. Assign IRQ for VGA Assign an IRQ number to your VGA adapter. Assign IRQ for ACPI Assign an IRQ number to ACPI. S1590 Trinity 100AT...

  • Page 56: Integrated Peripherals

    Auto IDE Primary Slave UDMA Disabled Auto IDE Secondary Master UDMA Disabled Auto IDE Secondary Slave UDMA Disabled Auto Init Display First PCI Slot Onboard FDD Controller Enabled Enabled Onboard Serial Port 1 3F8 / IRQ4 3F8 / IRQ4

  • Page 57

    (for each of up to four IDE devices that the internal PCI IDE interface supports), the system automatically determines the optimal data transfer rate for each IDE device. Init Display First Select the type of display adapter used in your system. S1590 Trinity 100AT...

  • Page 58: User Password

    Select EPP port type 1.7 or 1.9. Your device’s user information should tell you which port type is required. EPP1.9 is common in newer devices. User Password When you select this function, a message appears at the center of the screen: ENTER PASSWORD:

  • Page 59: Flash Writer Utility

    You can upgrade the BIOS on your motherboard by using the Flash Memory Writer (FMW) utility. This utility can be downloaded from TYAN’s BBS and from the TYAN website. The system BIOS is stored on a flash EEPROM chip on the mainboard, which can be erased and reprogrammed by the FMW. The following three files make up the FMW: AWDFLASH.EXE...

  • Page 60

    BIOS file is in the same directory as the FMW utility. To start FMW, change to the “Flash” directory if you are not already in it. Type “awdflash” at the DOS command line and press the <Enter> key. The FMW utility screen will appear:

  • Page 61

    Warning: If you do not successfully install a complete BIOS file in the flash memory on the mainboard, your system may not be able to boot. If this happens, it will require service by your system vendor. Follow the instructions in this section precisely to avoid such an inconvenience. S1590 Trinity 100AT...

  • Page 62: System Resources, Post Messages

    The checksum of the BIOS code in the BIOS chip is incorrect, indicating the BIOS code may have become corrupt. Contact your system dealer to replace the BIOS. CMOS battery failed CMOS battery is no longer functional. Contact your system dealer for a replacement battery.

  • Page 63

    POST. To purposely configure the system without a keyboard, set the error halt condition in Setup to HALT ON ALL, BUT KEYBOARD. The BIOS then ignores the missing keyboard during POST. S1590 Trinity 100AT...

  • Page 64

    See the Press TAB ... message above for a description of this feature. Secondary master hard disk fail POST detects an error in the primary slave IDE hard drive.

  • Page 65

    This page is intentionally left blank. S1590 Trinity 100AT...

  • Page 66

    The ATX form factor was designed to replace the AT form factor. It improves on the AT design by rotating the board ninety degrees, so that the IDE connectors are closer to the drive bays, and the CPU is closer to the power

  • Page 67

    A typical setup would be a cache size of 512KB, and a cacheable area of 512MB. In this case, up to 512MB of the main memory onboard is capable of being S1590 Trinity 100AT...

  • Page 68

    EEPROM Electrically Erasable Programmable ROM, also called Flash BIOS, is a ROM chip which can, unlike normal ROM, be updated. This allows you to

  • Page 69

    Form factor is an industry term for the size, shape, power supply type, and external connector type of the PCB (personal computer board) or motherboard. The standard form factors are the AT and ATX, although TYAN also makes some Baby-AT boards.

  • Page 70

    PM timers (Power Management timers) are software timers that count down the number of seconds or minutes until the system times out and enters sleep,

  • Page 71

    If only one socket is filled, the bank will not operate. In Sleep/Suspend mode, all devices except the CPU shut down. SRAM Static RAM, unlike DRAM, does not need to be refreshed in order to prevent data loss. Thus, it is faster, and more expensive. S1590 Trinity 100AT...

  • Page 72

    ZIF socket Zero Insertion Force sockets make it possible to insert CPUs without damaging the sensitive pins. The CPU is lightly placed in an open ZIF socket, and the metal lever pulled down. This shifts the processor over and down, guiding it into place on the board.

  • Page 73

    Cet appareil est conforme aux normes de Classe B d’ interference radio tel que spécifié par le Ministére Canadien des Communications dans les réglements d’interférence radio. Notice for Europe (CE Mark) This product is in conformity with the Council Directive 89/336/EEC, 92/31/EEC (EMC). Document # D1318-150 S1590 Trinity 100AT...

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