It is the policy of Soyo Computer Inc. to respect the valid patent rights of third parties and not to infringe upon or assist others to infringe upon such rights.
1 Introduction The 82430 TX PCI mainboard is a high-performance AT form-factor system board that supports P54C/P55C family CPUs and 512K external cache memory on the mainboard. The mainboard is fully compatible with industry standards, and adds many technical enhancements. Key Features ¥...
Introduction Unpacking the Mainboard The mainboard package contains: ¥ The 82430TX Mainboard ¥ A disc and a manual or a CD and a Quick Installation Guide Note: Do not unpack the mainboard until you are ready to install it. Follow the precautions below while unpacking the mainboard. 1.
2 Hardware Setup This chapter explains how to configure the mainboardÕs hardware. After you install the mainboard, you can set jumpers, install memory on the mainboard, and make case connections. Refer to this chapter whenever you upgrade or reconfigure your system. CAUTION: Turn off power to the mainboard, system chassis, and peripheral devices before performing any work on the...
Hardware Setup JP9: Smart Detect CPU Voltage function Auto/Manual Jumper This jumper is reserved for few old non-Intel CPUs which can not be detected correctly. If you run into problems while detecting the voltage of old non-Intel CPUs, remove this jumper to correct it. JP37: DIMM Voltage Select Jumper Most of DIMMs in the consumer market is still 3.3V and this jumper is reserved only for upgrading purpose in the near feature.
Hardware Setup CPU Type Configuration This section shows you how to configure your CPU step by step. Note that you need to check the CPU voltage before installation. This board supports75MHz host bus frequency for Cyrix CPUs. Beware that 75MHz host bus frequency is over the specification of this chipset. Therefore, you hav to use high quality devices to meet the standard of these CPUs, i.e., high quality DRAM and VGA cards.
Hardware Setup P54C/P55C – 180/200 CPU Settings (3.0 x clock) Cyrix 6x86MX – PR233 CPU Settings (3.0 x clock) AMD K6 – PR200 CPU Setting P54C/P55C– 180/60 MHz 82371AB P54C/P55C– 200/66 MHz AMD-K6/PR200 Cyrix 6x86MX – PR233/66MHz Figure 2Ð1Ð4. CPU Jumper Settings Note: You must equip the CPU with a fan and heat sink for system stability.
Hardware Setup P54C/P55C – 233 CPU Settings (3.5 x clock) AMD K6 – PR233 CPU Setting 82371AB Socket 7 (586 CPU Family) Figure 2Ð1Ð5. CPU Jumper Settings Note: You must equip the CPU with a fan and heat sink for system stability.
Hardware Setup Step 2: CPU Single/Dual Voltage Setting There are two kinds of CPU input voltages due to various designs of CPUsÑsingle voltage and dual voltage. Set your CPU according to the type that you have. For Intel P54C/P55C single and dual voltage series CPUs, there is no need to adjust any jumper for CPU voltag due to the Smart Detect CPU Voltage function.
Hardware Setup Dual Voltage CPU Setting Dual voltage CPUs are designed to use different voltage for VIO and VCore and they include Intel P55C series, Cyrix 6x86L/6x86MX, AMD K6, and MMX technology included CPUs. Refer to the following figures to set these CPUsÕ voltage: 2.8V CPU (default) (i.e., P55C, 6x86L) JP30...
Hardware Setup Memory Configuration Table SIMM Bank DIMM Bank Bank 0 DIMM 1 DIMM 2 DIMM 3 RAM Type FPM/EDO FPM/EDO FPM/EDO/ FPM/EDO/ SDRAM SDRAM SDRAM Single 4/8/16/32/64 8/16/32/64 8/16/32/64 8/16/32/64 Module Size (MB) Note: Do not install FPM or EDO SIMM/DIMM when you already installed SDRAM type of DIMM.
Hardware Setup Multi I/O Port Addresses Default settings for multi-I/O port addresses are shown in the table below. Port I/O Address Status LPT1* 378H ECP + EPP COM1 3F8H COM2 2F8H * If default I/O port addresses conflict with other I/O cards (e.g. sound cards or I/O cards), you must adjust one of the I/O addresses to avoid address conflict.
Hardware Setup JP1: Power Supply Selection Jumper This jumper lets you select either the AT or the ATX power supply. Use only one power supply at a time on this mainboard. AT Power Supply (default) ATX Power Supply FDC — FDC Connector Attach floppy cable to this connector.
Hardware Setup KB Conn. – Keyboard Connector A 5-pin femal DIN keyboard connector is located at the rear of the board. Plug the keyboard jack into this connector. IR1 – IR Connector Attach a 5-pin infrared device cable to this connector for enabling the infrared transfer function.
Hardware Setup USB1– Universal Serial Bus Connector Attach 9-pin USB cable to this connector for external USB device. IDE1/IDE2 – On-board Primary/Secondary IDE HDD Connectors Attach cables of hard disk drives to these connectors. J1 – Front Panel Connectors This set of connectors includes: J17 (Keylock/Power LED connector), J18 (Speaker connector), J19 (Reset Connector), PW2 (Momentary Button Connector), and J24 (Turbo/HDD LED Connector).
Hardware Setup PW2 — ATX Power Supply On/Off Switch Connector (Momentary Type) Attach a two-pin switch to this connector for turning the ATX power supply on/off. J22 – Turbo LED COnnector Attach the turbo LED to J22. The LEd lights when the system is in the Turbo mode.
BIOS Setup 3 BIOS Setup The mainboardÕs BIOS setup program is the ROM PCI/ISA BIOS from Award Software Inc. Enter the Award BIOS programÕs Main Menu as follows: 1. Turn on or reboot the system. After a series of diagnostic checks, you are asked to press DEL to enter Setup.
BIOS Setup Standard CMOS Setup Run the Standard CMOS Setup as follows. 1. Choose ÒSTANDARD CMOS SETUPÓ from the Main Menu. A screen appears. ROM PCI/ISA BIOS STANDARD CMOS SETUP AWARD SOFTWARE, INC. Date (mm:dd:yy) : Fri, Feb 1 1995 Time (hh:mm:ss) : 7 : 30 : 33 HARD DISKS...
Page 26
BIOS Setup Primary Large Ð Large IDE hard disk (for certain (Secondary) hard disk) Master & Slave Note: If you have any questions on your hard (Continued) disk type or mode, ask your hard disk provider or previous user for details. Drive A &...
BIOS Setup BIOS Features Setup Run the BIOS Features Setup as follows. 1. Choose ÒBIOS FEATURES SETUPÓ from the Main Menu and a screen with a list of items appears. (The screen below shows the BIOS default settings.) ROM PCI/ISA BIOS BIOS FEATURES SETUP AWARD SOFTWARE, INC.
BIOS Setup Boot Sequence Choose the boot device sequence as your need. For example, ÒA, C, SCSIÓ means BIOS will look for an operating system first from drive A, drive C, then SCSI device. Options of this function are: A, C, SCSI C, A, SCSI C, CDÐROM, A CDÐROM, C, A...
Page 29
BIOS Setup PCI/VGA Enabled: The color of the monitor may be incorrect Palette Snoop if uses with MPEG card. Enable this option to make the monitor normal. Disabled: Disable Snoop function (default). OS Select for OS2 Ð Choosing this when you are using OS/2 DRAM >64MB operation system.
BIOS Setup Chipset Features Setup The Chipset Features Setup option changes the values of the chipset registers. These registers control system options in the computer. Note: Change these settings only if you are familiar with the Chipset. Run the Chipset Features Setup as follows. 1.
Page 31
BIOS Setup DRAM Read Burst Use the default setting. (EDO/FP) DRAM Write Burst Use the default setting. Timing Fast EDO Lead Off Use the default setting. Refresh RAS# Assertion Use the default setting. Fast RAS to CAS Delay Use the default setting. DRAM Page Idle Timer Use the default setting.
Page 32
BIOS Setup Memory Hole At 15M- Choose Enabled or Disabled (default). Some interface cards will map their ROM address to this area. If this occurs, you should select Enabled, otherwise use Disabled. Mem. Drive Str. Default setting is Auto. This item allows (MA/RAS) you to change the setting to adjust the current memory signals.
BIOS Setup Power Management Setup The Power Management Setup option sets the systemÕs power saving functions. Run the Power Management Setup as follows. 1. Choose ÒPOWER MANAGEMENT SETUPÓ from the Main Menu and a screen with a list of items appears. ROM PCI/ISA BIOS CMOS SETUP UTILITY POWER MANAGEMENT SETUP...
Page 34
BIOS Setup PM Control by Choose Yes or No (default). APM stands for Advanced Power Management. To use APM, you must run Òpower.exeÓ under DOS v6.0 or later version. Video Off Method Choose V/H Sync+Blank (default), Blank screen, or DPMS for the selected PM mode. Video Off After Choose Standby (default), Suspend, Doze, or N/A mode.
Page 35
BIOS Setup CPU Fan Off In Choose Enabled to stop the CPU fan when the Suspend system runs into the suspend mode (refer to Power Management Setup.) Resume by Ring Choose Enabled or Disabled (default). This function only works when the computer is powered on.
BIOS Setup PNP/PCI Configuration Setup This option sets the mainboardÕs PCI Slots. Run this option as follows: 1. Choose ÒPNP/PCI CONFIGURATION SETUPÓ from the Main Menu and the following screen appears. (The screen below shows default settings.) ROM PCI/ISA BIOS PNP/PCI CONFIGURATION AWARD SOFTWARE, INC.
Page 37
BIOS Setup IRQX and Choose PCI/ISA PnP or Legacy ISA. If the first DMAX assigned item is set to Manual, you could choose IRQX and DMAX assigned to PCI/ISA PnP card or ISA card. PCI IRQ Choose Edge or Level. Most PCI trigger signals Activated By are Level.
BIOS Setup Load Setup Defaults This item loads the system values you have previously saved. Choose this item and the following message appears: ÒLoad SETUP Defaults (Y/N)? NÓ To use the SETUP defaults, change the prompt to ÒYÓ and press <Enter>.
BIOS Setup Integrated Peripherals The Integrated Peripherals option changes the values of the chipset registers. These registers control system options in the computer. Note: Change these settings only if you are familiar with the Chipset. Run the Integrated Peripherals as follows. 1.
Page 40
BIOS Setup IDE Primary Master Choose Auto (default) or Disabled. UDMA/ Auto Ð Supports Ultra DMA mode. IDE Primary Slave UDMA/ IDE Secondary Master UDMA/ IDE Secondary Slave UDMA On-chip Primary PCI Enabled Ð Use the on-board IDE IDE/ (default) On-chip Secondary PCI Disabled Ð...
Page 41
BIOS Setup Onboard Parallel Port Choose the parallel port I/O address: 378H/IRQ7 (default), 3BCH/IRQ7, 278H/IRQ5, or Disabled to disable this port. Parallel Port Mode Choose ECP+EPP (default), SPP, EPP, or ECP. The mode depends on your external device that connects to this port. ECP Mode Use DMA Choose DMA3 (default) or DMA1.
BIOS Setup Supervisor Password Based on the setting you made in the ÒSecurity OptionÓ of the ÒBIOS FEATURES SETUPÓ, this Main Menu item lets you configure the system so that a password is required every time the system boots or an attempt is made to enter the Setup program.
BIOS Setup User Password Based on the setting you made in the ÒSecurity OptionÓ of the ÒBIOS FEATURES SETUPÓ, this Main Menu item lets you configure the system so that a password is required every time the system boots or an attempt is made to enter the Setup program.
BIOS Setup IDE HDD Auto Detection This Main Menu item automatically detects the hard disk type and configures the STANDARD CMOS SETUP accordingly. This function is only valid for IDE hard disks. Note: ROM PCI/ISA BIOS CMOS SETUP UTILITY AWARD SOFTWARE, INC. HARD DISKS TYPE SIZE...
Page 47
Note for Memory Configuration On TX chipset motherboards, there is a memory limitation when the system has more than 2 DIMM sockets. The limitations are : Maximum memory size is 256MB total for all RAM socket. DIMM 3 won’t support 64MB or 128MB DIMMs with 64Mbit SDRAM cells. If DIMM 1 and/or DIMM 2 has 64MB or 128MB DIMM’s with 64Mbit SDRAM cells, DIMM 3 must be empty.