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GREEN
GXA486SPM
VESA ISA PCI
with super multi-I/O
TRADEMARK
All products and company names are
trademarks or registered trademarks of
their respective holders.

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Summary of Contents for EPOX GXA486SPM

  • Page 1 GREEN GXA486SPM VESA ISA PCI with super multi-I/O TRADEMARK All products and company names are trademarks or registered trademarks of their respective holders.
  • Page 2: Table Of Contents

    Contents Chapter 1 - Introduction ..........1-1 Chapter 2 - Hardware Design ......... 2-1 Motherboard Layout .............2-1 Connectors and Jumpers ............2-2 System Memory configuration ..........2-4 Cache Memory configuration ..........2-5 Super Multi-I/O Controller ...........2-6 Integrated PCI Bridge ............2-7 Chapter 3 - Award BIOS ..........3-1 Standard CMOS Setup ............3-2 BIOS Features Setup ............3-2 Chipset Features Setup ............3-3...
  • Page 3: Chapter 1 - Introduction

    Introduction 1-1 Chapter 1 Introduction The 486SPM motherboard is a high performance system hardware based on 486 processor. It designed with SIS85C496 / 497 VESA/ISA/PCI Chipset and SMC FDC37C665GT super multi I/O controller. The hard- ware dimension is 220mm * 250mm with four layer design technology. The 486SPM dectects CPU working voltage automaticlly, and its jumper setting for CPU Selection is very easy.
  • Page 4 1-2 486SPM 486SPM Layout VT82C42N JP20 < CONN. JP21 37C665 Power Connector BAT. JPS1 JPS3 JPS2 85C497 BANK 0 U20 U19 U18 U17 Socket 3 JP15 JP16 BANK 1 JP14 U27 U26 U25 U24 U23 JP10 KEYLOCK SPEAKER RESET TB-SW TB-LED G-LED SLEEP HDD-LED...
  • Page 5: Chapter 2 - Hardware Design

    Hardware Design Chapter 2 Hardware design 2-1 Motherboard Layout The 486SPM is designed with SiS85C496/497 PCI/ISA/VESA chipset which is developped by SiS Corporation to fully support 486 PCI/ISA/VESA system. The 486SPM utilize the green functions provided in the chipset to support power saving features when the system is in standby state.
  • Page 6: Connectors And Jumpers

    486SPM 2-2 Connectors and Jumpers This section describes all of the connectors and jumpers equipped in the motherboard. Please refer to Figure 1-1 for actual location of each connector and jumper. KeyLock - Keyboard lock switch & Power LED connector. 1.Power LED(+) 2.N/C 3.GND...
  • Page 7 Hardware Design Battery connector 2-3 : Normal 1-4 : External Battery connector 3-4 : Discharge Battery (Clear CMOS Data) ROM type selection : 1-2 for 12V Flash ROM while 2-3 for 5V Flash ROM or EPROM. CPU Selection : Open for Intel 80486DX4 while colse for other CPU.
  • Page 8: System Memory Configuration

    486SPM S1,S2,S3,S4,S5,S6,S7 : CPU Selection (Insert the "0 ohm " Resister Pack) S1 : UMC/AMD(NV8T) S2 : Intel-SL S3 : Cyrix M7 S4 : Intel P24D/Cyrix 5X86/AMD(SV8B)/AMD X5 S5 : 486SX/U5S S6 : 486DX/2/4/Cyrix M7/AMD(NV8T)/Cyrix 5x86 S7 : Intel P24D/AMD(SV8B)/AMD X5 Note : 1.
  • Page 9: Cache Memory Configuration

    Hardware Design 2-4 Cache Memory Configuration The second level of cache is installed in the motherboard to increase the system performance. The 486SPM supports different type of combinations for the cache installation. Jumper 12,13 and 15 settings are used to differential such combina- tions.
  • Page 10: Super Multi-I/O Controller

    486SPM 2-5 Super multi -I/O Controller The 486SPM built in (SMC FDC37C665GT) super mulit-I/O controller. It supports 1 floppy port (up to 2.88MB ), 1 parallel port(EPP/ECP optional) and 2 serial ports (16550 fast UART compatible). And all of the ports can be ENABLE or DISABLE by BIOS Utility.(Please refer to Figure 3-4 CHIPSET FEATURES SETUP) 5 10 5 10...
  • Page 11: Chapter 3 - Award Bios

    AWARD BIOS 3-1 CHAPTER 3 AWARD BIOS SETUP Award's ROM BIOS provides a built-in Setup program which allows user modify the basic system configuration and hardware parameters. The modified data will be stored in a battery-backed CMOS RAM so data will be retained even when the power is turned off.
  • Page 12: Standard Cmos Setup

    3-2 CHAPTER 3 3-1 STANDARD CMOS SETUP Choose "STANDARD CMOS SETUP" in the CMOS SETUP UTILITY Menu (Fig.3-1). The STANDARD CMOS SETUP allows user to configure system setting such as current date and time, type of hard disk drive installed in the system, floppy drive type, and the type of display monitor.
  • Page 13: Chipset Features Setup

    AWARD BIOS 3-3 ROM PCI/ISA BIOS (2A4IBPA2) BIOS FEATURES SETUP AWARD SOFTWARE, INC. Virus Warning : Disabled Video BIOS Shadow : Enabled CPU Internal Cache : Enabled C8000-CBFFF Shadow : Disabled External Cache : Enabled CC000-CFFFF Shadow : Disabled Enabled Quick Power On Self Test D0000-D3FFF Shadow...
  • Page 14: Power Management Setup

    3-4 CHAPTER 3 Note: When "AUTO Configuration: " option is enabled, the BIOS will automatically detects CPU speed and then configure the bus frequency, DRAM speed, and cache read/write cycle accordingly. Please refer to Figure 3-4 CHIPSET FEATURES SETUP for the detail settings. 3-4 POWER MANAGEMENT SETUP Choose the "POWER MANAGEMENT SETUP"...
  • Page 15 AWARD BIOS 3-5 3-4-1 The Description of the Power Management Power Management mode selection : Disabled The system operates in NORMAL conditions (Non-GREEN), and the Power Management function is disabled. Max.saving This mode will maximize the power saving capability. Min.saving This mode will minimize the power saving capability. User define Allow user to define timeout parameters to control power saving timing.
  • Page 16: Pci Configuration Setup

    3-6 CHAPTER 3 HDD Power Down Mode When system stop reading or wiriting HDD, the timer starts to count. The system will cut off the HDD power when timer ran out of time. The system will not resume operation until either a read from or a wirte to HDD command is executed again.
  • Page 17 AWARD BIOS 3-7 ROM PCI/ISA BIOS (2A4IBPA2) PCI CONFIGURATION SETUP AWARD SOFTWARE, INC. Slot 1 Using INT# : AUTO Slot 2 Using INT# : AUTO Slot 3 Using INT# : AUTO 1st Available IRQ : 10 2nd Available IRQ : 11 3rd Available IRQ 4th Available IRQ PCI IRQ triggered...
  • Page 18: Load Setup Defaults

    3-8 CHAPTER 3 3-6 LOAD SETUP DEFAULTS The "LOAD SETUP DEFAULTS" function loads the system default data directly from ROM and initialize associated hardware properly. This function will be necessary only when the system CMOS data is corrupted. ROM PCI/ISA BIOS (2A4IBPA2) CMOS SETUP UTILITY AWARD SOFTWARE, INC.
  • Page 19: Ide Hdd Auto Detection And Hdd Low Level Format

    AWARD BIOS 3-9 3-8 IDE HDD AUTO DETECTION and LOW LEVEL FORMAT The "IDE HDD AUTO DETECTION" utility is a very useful tool especially when you do not know which kind of hard disk type you are using. You can use this utility to detect the correct disk type installed in the system automatically.
  • Page 20 3-10 CHAPTER 3...

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