Introduction
1
CHAPTER 1
INTRODUCTION
The mainboard is a 2/3 body AT size high-performance mainboard that provides with basic elements on which
to build an advanced computer. The mainboard running from 25MHz to 100MHz, supports Normal 486
CPUs, Intel's SL-Enhanced 486, P24D/P24T; P24C (486DX4), Cyrix Cx486S/DX/DX2/DX4, Cx486DX2-
V66/V80 (3.6-4.0V)/Cx486DX4 (3.45V)/Cx5x86 (3.3V), Am486DX2/DX4 (3.45V), Enhanced
Am486DX2/DX4 (3.45V), IBM 486-4V3100GIC/GC, SGS Thomson 486DX/DX2/DX4, UMC U5SX-486 &
TI 486DX2/DX4 CPUs.
1.1
KEY FEATURES
The advanced features of the mainboard include:
• Supports Intel's SL Enhanced 80486DX2/DX/SX, normal 486,
P24D/P24T, P24C (486DX4), Cyrix's Cx486S/DX/DX2/
DX4, Cx486DX2-V66/V80 (3.6-4.0V)/Cx486DX4 (3.45V)/Cx5x86
(3.3V), AMD Am486DX2/DX4 (3.45V), Enhanced Am486DX2/DX4
(3.45V), IBM 486-4V3100GIC/GC, SGS Thomson 486DX/DX2/DX4,
UMC U5SX-486 & TI 486DX2/DX4 CPUs.
• Supports Cache \Write back CPU
P24T/P24D/Cx486S/DX/DX2/DX2V/DX4/5x86/
Enhanced Am486DX2/DX4/IBM 486-4V3100GIC/GC, SGS Thomson
486DX/DX2/DX4 & TI 486DX2/DX4.
• 100% IBM PC-AT and PCI 2.0 compatible, 486 PCI solution.
• Provides power saving features to allow a system, through the control of
BIOS, to reduce the CPU clock frequency down to 0MHz
(STOP CLOCK) when the system is idle.
• Supports Power Management Mode
- Supports the SMM and the SMI
- CPU Stop Clock Function
- Long and Short System Timers
- Supports the APM control
- Supports Break Switch control
- Power Saving also on non-SMI CPU
- More System Event Monitoring and the Power saving Control
• Jumper select CPU supply voltage of 3.3/3.45/3.6/4.0/5.0V
• Direct Mapped Cache Controller
- Write-Back or Write-Through Schemes
- Bank Interleave or Non-Interleave Cache
- Flexible Cache Size: 128/256/512/1024KB
• Memory size from 1MB to 128MB, possible using combinations of
1M, 2M, 4M, 8M, 16M, 32M, or 64M 72-pin SIMM modules in four memory banks.
• Provide 2 enhanced PCI IDE channels that support up to 4 IDE devices.
• Provide FDD channels which support 360K, 720K, 1.2M & 1.44M floppy disks, two 16550
compatible UARTs, one Parallel port with EPP/ECP mode, and one joystick port.
Содержание GMB-486SPS
Страница 1: ...GMB 486SPS High Performance 486 PCI Motherboard User s Manual For GMB 486sps v0 Manual Edition 1 03 ...
Страница 14: ...Hardware Configuration 9 Table 1G CPU Type P24D 486DX4 EW3V 3 3V Table 1H CPU Type P24C DX4 3 3V ...
Страница 18: ...Hardware Configuration 13 Table 1O CPU Type Cx486DX DX2 5V Table 1P CPU Type Cx486DX2 V66 3 6V ...
Страница 19: ...Chapter 2 14 Table 1Q CPU Type Cx486DX2 V80 4 0V Table 1R CPU Type Cx486DX4 100GP4 ST 486DX4V10HS 3 45V ...
Страница 21: ...Chapter 2 16 Table 1U CPU Type UMC U5SX 486 5V ...
Страница 36: ...Mainboard Installation 31 3 3 1 CONNECTION LOCATIONS Fig 7 Connector Locations ...