Thread: 486-GIO-VT2 VESA Motherboard User Manual

- 4-72 pin SIMM slots (1-64meg FPM DRAM)
- 2-32bit VESA Local Bus slots
- 5-16bit ISA slots
- 1-8bit XT slot
- 64k-256k CACHE support in 8-28pin sockets + 1 TAG RAM socket
- AWARD Auto-Detect Bios with Energy Mgmt.
- Supports LBA Mode Control & Large Disk DOS Compatibility.
- Green PC Connector
- VIA chipset (version # needed)
- Supports 3.3v/5volt CPU's and clock speeds 2x/2.5x/3x
- 237pin ZIF CPU socket which supports these processors:
INTEL 80486SX,80486DX/DX2/DX4,P4S,P23S,P24C,P24CT,P24D,P24S
Pentium Overdrive
CYRIX CX486S(M6),CX486DX(M7)
AMD AM486DX,AM486DXL
- Supports speeds of 25/33/40/50/66/75/100(internal)MHz.
- Multi-I/O chip supports 2 - serial ports, 1 - game port
2 - IDE interfaces supporting 4 devices, PS/2 mouse support
1 - parallel port with EPP & ECP, 1 - floppy disk interface.
- Manufactured by: FIRST INTERNATIONAL COMPUTER, INC.

==View or Print jumper settings using Fixedsys or New Courier fonts==

486-GIO-VT2 VESA Motherboard

- 4-72 pin SIMM slots (1-64meg FPM DRAM)
- 2-32bit VESA Local Bus slots
- 5-16bit ISA slots
- 1-8bit ISA slot
- 64k-256k CACHE support in 8-28pin sockets + 1 TAG RAM socket
- AWARD Auto-Detect Bios with Energy Mgmt.
- Supports LBA Mode Control + Large Disk DOS Compatibility.
- Green PC Connector
- VIA GMC VT82C496A PC/AT chipset
- Supports 3.3v/5volt CPU's and clock speeds 2x/2.5x/3x
- 237pin ZIF CPU socket which supports these processors:
INTEL 80486SX,80486DX/DX2/DX4,P4S,P23S,P24C,P24CT,P24D,P24S
Pentium Overdrive
CYRIX CX486S(M6),CX486DX(M7)
AMD AM486DX,AM486DXL
- Supports speeds of 25/33/40/50/66/75/100(internal)MHz.
- Multi-I/O chip supports 2 - serial ports, 1 - game port
2 - IDE interfaces supporting 4 devices, PS/2 mouse support
1 - parallel port with EPP + ECP, 1 - floppy disk interface.
- Manufactured by: FIRST INTERNATIONAL COMPUTER INC.
CONNECTIONS
-------------------------------------------------------------------------
Purpose Location Purpose Location
-------------------------------------------------------------------------
PS/2 mouse interface CN1 Turbo switch J12
Game interface CN2 Turbo LED J13
PS/2 mouse port CN4 Reset switch J14
Serial port 2 CN7 Speaker J15
Serial port 1 CN8 Power LED + keylock J16
Floppy drive interface CN9 Green PC connector J17
Parallel port CN10 Green PC connector J23
IDE interface (primary) CN11 Green PC connector J24
IDE interface (secondary) CN12 IDE interface LED (secondary) J25
External battery J1 32-bit VESA local bus slots SL1/SL2
IDE interface LED (primary) J8
USER CONFIGURABLE SETTINGS
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Function Jumper Position
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Monitor type select monochrome/EGA/VGA J2 Open
Monitor type select color J2 Closed
D Battery type select internal J3 2 + 3closed
Battery type select external J3 1 + 2 closed
D VESA IDE interface enabled J4 1 + 2 closed
VESA IDE interface disabled J4 2 + 3 closed
D CMOS memory normal operation J7 Open
CMOS memory clear J7 Closed
D Local HDD-BALE disabled J9 Open
Local HDD-BALE enabled J9 Closed
D Local HDD-IOCHRDY disabled J10 Open
Local HDD-IOCHRDY enabled J10 Closed
D ISA HDD BALE disabled J26 Open
ISA HDD BALE enabled J26 Closed
D ISA HDD-IOCHRDY disabled J27 Open
ISA HDD-IOCHRDY enabled J27 Closed
D AM486DXL2 speed select 2x J30 Closed
AM486DXL2 speed select 3x J30 Open
D Game port enabled J31 Closed
Game port disabled J31 Open
D CPU type select Intel SL and all others JCX2 1 + 2 closed
CX486S/DX P24D JCX2 2 + 3 closed
D Factory configured - do not alter JP1 2 + 3 closed
D Factory configured - do not alter JP2 2 + 3 closed
D Cache type select write through JTl Open
Cache type select write back JTl Closed
D Factory configured - do not alter JW1 N/A
D Factory configured - do not alter JW2 N/A
D Factory configured - do not alter JX1 2 + 3 closed
D IDE interface enabled JG 2 + 3 closed
IDE interface disabled JG 1 + 2 closed
D Floppy drive interface enabled JH 2 + 3 closed
Floppy drive interface disabled JH 1 + 2 closed
D Parallel port unidirectional (printer) JI closed
Parallel port bidirectional JI open
(D = Default setting)

DRAM CONFIGURATION
--------------------------------------------------------------------------
Size Bank 0 Bank 1 Bank 2 Bank 3
--------------------------------------------------------------------------
1MB (1)256K x 36 NONE NONE NONE
2MB (1)256K x 36 (1)256K x 36 NONE NONE
3MB (1)256K x 36 (1)256K x 36 (1)256K x 36 NONE
4MB (1)256K x 36 (1)256K x 36 (1)256K x 36 (1)256K x 36
4MB (1)1M x 36 NONE NONE NONE
5MB (1)1M x 36 (1)256K x 36 NONE NONE
6MB (1)1M x 36 (1)256K x 36 (1)256K x 36 NONE
7MB (1)1M x 36 (1)256K x 36 (1)256K x 36 (1)256K x 36
8MB (1)1M x 36 (1)1M x 36 NONE NONE
12MB (1)1M x 36 (1)1M x 36 (1)1M x 36 NONE
12MB NONE (1)1M x 36 (1)2M x 36 NONE
12MB NONE NONE (1)1M x 36 (1)2M x 36
16MB (1)1M x 36 (1)1M x 36 (1)1M x 36 (1)1M x 36
16MB (1)4M x 36 NONE NONE NONE
16MB NONE (1)1M x 36 (1)2M x 36 (1)1M x 36
16MB NONE NONE (1)2M x 36 (1)2M x 36
17MB (1)4M x 36 (1)256K x 36 NONE NONE
18MB (1)4M x 36 (1)256K x 36 (1)256K x 36 NONE
19MB (1)4M x 36 (1)256K x 36 (1)256K x 36 (1)256K x 36
20MB (1)4M x 36 (1)1M x 36 NONE NONE
21MB (1)4M x 36 (1)1M x 36 (1)256K x 36 NONE
22MB (1)4M x 36 (1)1M x 36 (1)256K x 36 (1)256K x 36
24MB (1)4M x 36 (1)1M x 36 (1)1M x 36 NONE
28MB (1)4M x 36 (1)1M x 36 (1)1M x 36 (1)1M x 36
32MB (1)4M x 36 (1)4M x 36 NONE NONE
32MB NONE NONE (1)8M x 36 NONE
33MB (1)4M x 36 (1)4M x 36 (1)256K x 36 NONE
34MB (1)4M x 36 (1)4M x 36 (1)256K x 36 (1)256K x 36
36MB (1)4M x 36 (1)4M x 36 (1)1M x 36 NONE
40MB (1)4M x 36 (1)4M x 36 (1)1M x 36 (1)1M x 36
48MB (1)4M x 36 (1)4M x 36 (1)4M x 36 NONE
48MB NONE (1)4M x 36 (1)8M x 36 NONE
48MB NONE NONE (1)4M x 36 (1)8M x 36
64MB (1)4M x 36 (1)4M x 36 (1)4M x 36 (1)4M x 36
64MB NONE (1)4M x 36 (1)8M x 36 (1)4M x 36
64MB NONE NONE (1)8M x 36 (1)8M x 36
CACHE CONFIGURATION
-------------------------------------------------------------------------
Size Bank 0 Bank 1 TAG
-------------------------------------------------------------------------
64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8
128KB (4) 32K x 8 NONE (1) 8K x 8
256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8
CACHE JUMPER CONFIGURATION
-------------------------------------------------------------------------
Size JS1 JS2 JS3
-------------------------------------------------------------------------
64KB 1 + 2 closed 1 + 2 closed 1 + 2 closed
128KB 1 + 2 closed 2 + 3 closed 2 + 3 closed
256KB 2 + 3 closed 2 + 3 closed 1 + 2 closed
CPU TYPE CONFIGURATION
-------------------------------------------------------------------------
Type JC1 JC2 JC3 JC4
-------------------------------------------------------------------------
CX486S 2 + 3 2 + 3 Open 1 + 2
80486SX 2 + 3 2 + 3 Open 1 + 2
CX486DX 1 + 2 1 + 2 Open 1 + 2
AM486DX 1 + 2 1 + 2 Open 1 + 2
80486DX 1 + 2 1 + 2 Open 1 + 2
80486DX2 1 + 2 1 + 2 Open 1 + 2
P4S 1 + 2 1 + 2 Open 1 + 2
P23S 2 + 3 2 + 3 Open 1 + 2
P24C 1 + 2 1 + 2 Open 1 + 2
P24CT 1 + 2 1 + 2 Closed 2 + 3
P24D 1 + 2 1 + 2 Open 2 + 3
P24S 1 + 2 1 + 2 Open 1 + 2
Pentium Overdrive 1 + 2 1 + 2 Closed 2 + 3
------------------------------------------------------------------------
Type RN20 RN21 RN22 JC5 JC6
------------------------------------------------------------------------
CX486S Not installed Installed Installed Open Open
80486SX Not installed Not installed Not installed Open Open
CX486DX Not installed Installed Installed Open Open
80486DX Not installed Not installed Not installed Open Open
AM486DXL Installed Not installed Not installed Open Open
80486DX2 Not installed Not installed Not installed Open Open
P4S Not installed Not installed Not installed Closed Closed
P23S Not installed Not installed Not installed Closed Closed
P24C Not installed Installed Not installed Closed Closed
P24CT Not installed Installed Not installed Closed Closed
P24D Not installed Installed Not installed Closed Closed
P24S Not installed Not installed Not installed Closed Closed
P24T Not installed Not installed Not installed Closed Closed
CPU SPEED CONFIGURATION
-------------------------------------------------------------------------
Speed JKl JK2 JK3 JK4
-------------------------------------------------------------------------
25MHZ 2 + 3 closed 1 + 2 closed 2 + 3 closed 1 + 2 closed
33MHz 2 + 3 closed 2 + 3 closed 1 + 2 closed 1 + 2 closed
4OMHz 1 + 2 closed 1 + 2 closed 2 + 3 closed 1 + 2 closed
5OiMHz 2 + 3 closed 1 + 2 closed 2 + 3 closed 1 + 2 closed
5OMHz 2 + 3 closed 1 + 2 closed 2 + 3 closed 2 + 3 closed
66iMHZ 2 + 3 closed 2 + 3 closed 1 + 2 closed 1 + 2 closed
75iMHZ 2 + 3 closed 1 + 2 closed 2 + 3 closed 1 + 2 closed
100iMHz 2 + 3 closed 2 + 3 closed 1 + 2 closed 1 + 2 closed
CPU SPEED CONFIGURATION (80488DX4 ONLY)
-------------------------------------------------------------------------
Speed J20
-------------------------------------------------------------------------
3x Open
2x 1 + 2 closed
2.5x 2 + 3 closed
CPU VOLTAGE CONFIGURATION
-------------------------------------------------------------------------
Softing PS1
-------------------------------------------------------------------------
3.3v Installed
5v 1 + 2, 3 + 4, 13 + 14, 15 + 16 closed
VESA WAIT STATE CONFIGURATION
-------------------------------------------------------------------------
Wait states JV3
-------------------------------------------------------------------------
0 wait states 2 + 3 closed
1 wait state 1 + 2 closed
BUS SPEED CONFIGURATION
-------------------------------------------------------------------------
CPU speed JV2
-------------------------------------------------------------------------
<= 33MHz 2 + 3 closed
> 33MHz 1 + 2 closed
PARALLEL PORT CONFIGURATION
-------------------------------------------------------------------------
Setting JE JF
-------------------------------------------------------------------------
378 1 + 2 closed 2 + 3 closed
278 2 + 3 closed 1 + 2 closed
3BC 2 + 3 closed 2 + 3 closed
Disabled 1 + 2 closed 1 + 2 closed
PRINTER CONFIGURATION
-------------------------------------------------------------------------
Type JW3 JW4
-------------------------------------------------------------------------
Printer 2 + 3 closed 2 + 3 closed
EPP/SPP 2 + 3 closed 1 + 2 closed
EPP/ECP 1 + 2 closed 2 + 3 closed
EXT2FDD 1 + 2 closed 1 + 2 closed
SERIAL PORT 1 CONFIGURATION
-------------------------------------------------------------------------
Setting JA JB
-------------------------------------------------------------------------
3F8 2 + 3 closed 1 + 2 closed
2E8 2 + 3 closed 2 + 3 closed
3E8 1 + 2 closed 2 + 3 closed
Disabled 1 + 2 closed 1 + 2 closed

SERIAL PORT 2 CONFIGURATION
-------------------------------------------------------------------------
Softing JC JD
-------------------------------------------------------------------------
2F8 2 + 3 closed 1 + 2 closed
2E8 1 + 2 closed 2 + 3 closed
3E8 2 + 3 closed 2 + 3 closed
Disabled 1 + 2 closed 1 + 2 closed
DMA CONFIGURATION
-------------------------------------------------------------------------
DMA JW5 JW6
-------------------------------------------------------------------------
1 1 + 2 closed 1 + 2 closed
3 2 + 3 closed 2 + 3 closed
IDE SPEED CONFIGURATION
-------------------------------------------------------------------------
Speed J5 J6
-------------------------------------------------------------------------
1 1 + 2 closed 2 + 3 closed
0 2 + 3 closed 2 + 3 closed
2 1 + 2 closed 1 + 2 closed
-------------------------------------------------------------------------
(Supplement to original manual release)
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Jumper I486DX2-66 I486DX4-75 AMD5X86-P75 AMD5X86 AMD-X5-120
AMD-X5-133ADWAMD (DX4-S 120Mhz)
-------------------------------------------------------------------------
JC1 1-2 1-2 1-2 1-2
JC2 1-2 1-2 1-2 1-2
JC3 OPEN OPEN OPEN OPEN
JC4 1-2 1-2 1-2 1-2
JC5 SHORTED SHORTED SHORTED SHORTED
JC6 SHORTED SHORTED SHORTED SHORTED
RN20 EMPTY EMPTY EMPTY EMPTY
RN21 INSERTED INSERTED INSERTED EMPTY
RN22 EMPTY EMPTY EMPTY EMPTY
J20 1-2(2X MODE)1-2(2X MODE) 1-2(2X MODE) 1-2(2X MODE)
JCX2 1-2 1-2 1-2 1-2
JX1 2-3 2-3 2-3 2-3
JP2 2-3 2-3 2-3 2-3
JP1 2-3 2-3 2-3 2-3
J30 OPEN OPEN OPEN OPEN
JK1(CLK)2-3 2-3 2-3 1-2
JK2(CLK)2-3 1-2 2-3 1-2
JK3(CLK)1-2 2-3 1-2 2-3
JK4(CLK)1-2 1-2 1-2 1-2
============================END 486-GIO-VT2==============================