Thread: 4386-VIO 486 ISA Motherboard User Manual

BIOS ID string 09/16/93-VT82C495-VIA00000-00

- 8-30 pin SIMM slots (1-128meg FPM DRAM)
- 6-16bit ISA slots
- 64-256k cache support in 8-28pin sockets + 1 TAG RAM sockets
- Award Bios
- VIA Chipset
- DALLAS Real Time Clock
- NPU socket for 80387DX
- Supports CPU's 80386DX, CX486DLC, 80486SX/80487SX, 80486DX/DX2
- Supports speeds of 20/25/33/40/50/66 MHz.
- Multi-I/O chip supports 2 - serial ports, 1 - parallel port,
1 - floppy disk interface, 1 - IDE interface, 1 - game port.
- Manufactured by: FIRST INTERNATIONAL COMPUTER, INC.


==View or Print jumper settings using Fixedsys or New Courier fonts==
4386-VIO 486 ISA Motherboard

- BIOS ID string ????????????? help!
- 8-30 pin SIMM slots (1-128meg FPM DRAM)
- 6-16bit ISA slots
- 64-256k cache support in 8-28pin sockets + 1 TAG RAM sockets
- Award Bios
- VIA Chipset
- DALLAS Real Time Clock
- NPU socket for 80387DX
- Supports CPU's 80386DX,CX486DLC,80486SX/80487SX,80486DX/DX2
- Supports speeds of 20/25/33/40/50/66 MHz.
- Multi-I/O chip supports 2 - serial ports, 1 - parallel port,
1 - floppy disk interface, 1 - IDE interface, 1 - game port.
- manufactured by: FIRST INTERNATIONAL COMPUTER, INC.
-----------------------------------------------------------------------
CONNECTIONS
-----------------------------------------------------------------------
Purpose Location Purpose Location
-----------------------------------------------------------------------
Parallel port CN3 Turbo LED J5
Game port CN4 Turbo switch J6
Serial port 1 CN5 Reset switch J7
Serial port 2 CN6 Speaker J8
Floppy interface CN7 Power LED + keylock J9
IDE interface CN8 IDE interface LED J44
-----------------------------------------------------------------------
USER CONFIGURABLE SETTINGS
-----------------------------------------------------------------------
Function Jumper Position
-----------------------------------------------------------------------
* Parallel port unidirectional (printer) JG pins 1+2
Parallel port bidirectional JG pins 2+3
* IDE interface enabled JH pins 2+3
IDE interface disabled JH pins 1+2
* Floppy drive interface enabled J1 pins 2+3
Floppy drive interface disabled J1 pins 1+2
* Monitor type select CGA J2 Closed
Monitor type select monochrome/EGA/VGA J2 Open
* Factory configured - do not alter J3 N/A help!
* Factory configured - do not alter J4 N/A help!
* NPU synchronous with CPU J40 pins 1+2
NPU asynchronous with CPU J40 pins 2+3
* Factory configured - do not alter J41 N/A help!
* BALE to IDE select connected to CN8 pin28 J45 Closed
BALE to IDE select not connected J45 Open
-----------------------------------------------------------------------
DRAM CONFIGURATION (80386)
-----------------------------------------------------------------------
Size Bank 0 Bank 1
-----------------------------------------------------------------------
1MB (4) 256K x 9 NONE
2MB (4) 256K x 9 (4) 256K x 9
4MB (4) 1M x 9 NONE
5MB (4) 256K x 9 (4) 1M x 9
5MB (4) 1M x 9 (4) 256K x 9
8MB (4) 1M x 9 (4) 1M x 9
16MB (4) 4M x 9 NONE
17MB (4) 256K x 9 (4) 4M x 9
17MB (4) 4M x 9 (4) 256K x 9
20MB (4) 1M x 9 (4) 4M x 9
20MB (4) 4M x 9 (4) 1M x 9
32MB (4) 4M x 9 (4) 4M x 9
-----------------------------------------------------------------------
DRAM CONFIGURATION (80486)
-----------------------------------------------------------------------
Size Bank 0 Bank 1
-----------------------------------------------------------------------
1MB (4) 256K x 9 NONE
2MB (4) 256K x 9 (4) 256K x 9
4MB (4) 1M x 9 NONE
5MB (4) 256K x 9 (4) 1M x 9
5MB (4) 1M x 9 (4) 256K x 9
8MB (4) 1M x 9 (4) 1M x 9
16MB (4) 4M x 9 NONE
17MB (4) 256K x 9 (4) 4M x 9
17MB (4) 4M x 9 (4) 256K x 9
20MB (4) 1M x 9 (4) 4M x 9
20MB (4) 4M x 9 (4) 1M x 9
32MB (4) 4M x 9 (4) 4M x 9
64MB (4) 16M x 9 NONE
65MB (4) 256K x 9 (4) 16M x 9
65MB (4) 16M x 9 (4) 256K x 9
68MB (4) 1M x 9 (4) 16M x 9
68MB (4) 16M x 9 (4) 1M x 9
80MB (4) 4M x 9 (4) 16M x 9
80MB (4) 16M x 9 (4) 4M x 9
128MB (4) 16M x 9 (4) 16M x 9
-----------------------------------------------------------------------
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 JS4
-----------------------------------------------------------------------
64KB pins 1+2 pins 1+2 pins 1+2 pins 1+2
128KB pins 1+2 pins 2+3 pins 2+3 pins 2+3
256KB pins 2+3 pins 2+3 pins 1+2 pins 1+2
-----------------------------------------------------------------------
CPU TYPE CONFIGURATION
-----------------------------------------------------------------------
Type JC1 JC2 JC3 JC5
-----------------------------------------------------------------------
80386DX-33/40 pins 1+2 pins 1+2 pins 1+2 Open
CX486DLC-33/40 pins 1+2 pins 1+2 pins 1+2 Closed
80486SX-20/25 pins 2+3 pins 2+3 Open Open
80486SX-33 pins 2+3 pins 2+3 Open Open
80487SX-20/25 pins 1+2 pins 1+2 pins 2+3 Open
80486DX-20/25 pins 1+2 pins 1+2 pins 1+2 Open
80486DX-33/50 pins 1+2 pins 1+2 pins 1+2 Open
80486DX2-50 pins 1+2 pins 1+2 pins 1+2 Open
80486DX2-66 pins 1+2 pins 1+2 pins 1+2 Open
-----------------------------------------------------------------------
Note: If JC5 is closed, pins 1 + 2, 3 + 4, 5 + 6 are closed
-----------------------------------------------------------------------
Type JK1 JK2 JK4
-----------------------------------------------------------------------
80386DX-33/40 pins 1 + 2 pins 1 + 2 pins 2 + 3
CX486DLC-33/40 pins 1 + 2 pins 1 + 2 pins 1 + 2
80486SX-20/25 pins 1 + 2 pins 1 + 2 pins 1 + 2
80486SX-33 pins 2 + 3 pins 2 + 3 pins 1 + 2
80487SX-20/25 pins 1 + 2 pins 1 + 2 pins 1 + 2
80486DX-20/25 pins 1 + 2 pins 1 + 2 pins 1 + 2
80486DX-33/50 pins 2 + 3 pins 2 + 3 pins 1 + 2
80486DX2-50 pins 1 + 2 pins 1 + 2 pins 1 + 2
80486DX2-66 pins 2 + 3 pins 2 + 3 pins 1 + 2
-----------------------------------------------------------------------
CPU CLOCK GENERATOR CONFIGURATION
-----------------------------------------------------------------------
Speed J46 pins 1+2 J46 pins 3+4 J46 pins 5+6 J46 pins 7+8
-----------------------------------------------------------------------
33MHZ Closed Open Open Open
4OMHz Closed Open Closed Closed
4OMHz Closed Closed Open Open
5OMHz Open Open Closed Closed
5OMHZ Open Closed Open Open
66MHz Open Closed Open Closed
66MHZ Closed Open Open Closed
8OMHz Closed Closed Open Closed
-----------------------------------------------------------------------

Note: If JC5 is closed, pins 1 + 2, 3 + 4, 5 + 6 are closed
-----------------------------------------------------------------------
Type JK1 JK2 JK4
-----------------------------------------------------------------------
80386DX-33/40 pins 1 + 2 pins 1 + 2 pins 2 + 3
CX486DLC-33/40 pins 1 + 2 pins 1 + 2 pins 1 + 2
80486SX-20/25 pins 1 + 2 pins 1 + 2 pins 1 + 2
80486SX-33 pins 2 + 3 pins 2 + 3 pins 1 + 2
80487SX-20/25 pins 1 + 2 pins 1 + 2 pins 1 + 2
80486DX-20/25 pins 1 + 2 pins 1 + 2 pins 1 + 2
80486DX-33/50 pins 2 + 3 pins 2 + 3 pins 1 + 2
80486DX2-50 pins 1 + 2 pins 1 + 2 pins 1 + 2
80486DX2-66 pins 2 + 3 pins 2 + 3 pins 1 + 2
-----------------------------------------------------------------------
CPU CLOCK GENERATOR CONFIGURATION
-----------------------------------------------------------------------
Speed J46 pins 1+2 J46 pins 3+4 J46 pins 5+6 J46 pins 7+8
-----------------------------------------------------------------------
33MHZ Closed Open Open Open
4OMHz Closed Open Closed Closed
4OMHz Closed Closed Open Open
5OMHz Open Open Closed Closed
5OMHZ Open Closed Open Open
66MHz Open Closed Open Closed
66MHZ Closed Open Open Closed
8OMHz Closed Closed Open Closed
-----------------------------------------------------------------------
Note:If an oscillator is installed, these jumper settings have no effect.
-----------------------------------------------------------------------
-----------------------------------------------------------------------
PARALLEL PORT CONFIGURATION
-----------------------------------------------------------------------
Setting JE JF
-----------------------------------------------------------------------
Disabled pins 1 + 2 pins 1 + 2
378 pins 1 + 2 pins 2 + 3
278 pins 2 + 3 pins 1 + 2
3BC pins 2 + 3 pins 2 + 3
-----------------------------------------------------------------------
SERIAL PORT 1 CONFIGURATION
-----------------------------------------------------------------------
Setting JA JB
-----------------------------------------------------------------------
Disabled pins 1 + 2 pins 1 + 2
3E8 pins 1 + 2 pins 2 + 3
3F8 pins 2 + 3 pins 1 + 2
2E8 pins 2 + 3 pins 2 + 3
-----------------------------------------------------------------------
SERIAL PORT 2 CONFIGURATION
-----------------------------------------------------------------------
Setting JC JD
-----------------------------------------------------------------------
Disabled pins 1 + 2 pins 1 + 2
2E8 pins 1 + 2 pins 2 + 3
2F8 pins 2 + 3 pins 1 + 2
3E8 pins 2 + 3 pins 2 + 3
=====================END OF DATA FOR 4386-VIO==========================