FIRST INTERNATIONAL COMPUTER, INC.
486-GIO-VT2
Processor |
CX486S/80486SX/CX486DX/AM486DX/AM486DXL/80486DX/80486DX2/ 80486DX4/P4S/P23S/P24C/P24CT/P24D/P24S/Pentium Overdrive |
Processor Speed |
25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz |
Chip Set |
VIA |
Max. Onboard DRAM |
64MB |
Cache |
64/128/256KB |
BIOS |
Award |
Dimensions |
254mm x 218mm |
I/O Options |
32-bit VESA local bus slots (2), floppy drive interface, game port, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2) |
NPU Options |
None |
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 | |||
Function |
Jumper |
Position | |
» |
Monitor type select monochrome/EGA/VGA |
J2 |
Open |
Monitor type select color |
J2 |
Closed | |
» |
Battery type select internal |
J3 |
pins 2 & 3 closed |
Battery type select external |
J3 |
pins 1 & 2 closed | |
» |
VESA IDE interface enabled |
J4 |
pins 1 & 2 closed |
VESA IDE interface disabled |
J4 |
pins 2 & 3 closed | |
» |
CMOS memory normal operation |
J7 |
Open |
CMOS memory clear |
J7 |
Closed | |
» |
Local HDD_BALE disabled |
J9 |
Open |
Local HDD_BALE enabled |
J9 |
Closed | |
» |
Local HDD_IOCHRDY disabled |
J10 |
Open |
Local HDD_ IOCHRDY enabled |
J10 |
Closed | |
» |
ISA HDD_BALE disabled |
J26 |
Open |
ISA HDD_BALE enabled |
J26 |
Closed | |
» |
ISA HDD_IOCHRDY disabled |
J27 |
Open |
ISA HDD_ IOCHRDY enabled |
J27 |
Closed | |
» |
AM486DXL2 speed select 2x |
J30 |
Closed |
AM486DXL2 speed select 3x |
J30 |
Open | |
» |
Game port enabled |
J31 |
Closed |
Game port disabled |
J31 |
Open | |
» |
CPU type select Intel SL and all others |
JCX2 |
pins 1 & 2 closed |
CX486S/DX P24D |
JCX2 |
pins 2 & 3 closed | |
» |
Factory configured - do not alter |
JP1 |
pins 2 & 3 closed |
» |
Factory configured - do not alter |
JP2 |
pins 2 & 3 closed |
» |
Cache type select write through |
JT1 |
Open |
Cache type select write back |
JT1 |
Closed | |
» |
Factory configured - do not alter |
JW1 |
N/A |
» |
Factory configured - do not alter |
JW2 |
N/A |
» |
Factory configured - do not alter |
JX1 |
pins 2 & 3 closed |
» |
IDE interface enabled |
JG |
pins 2 & 3 closed |
USER CONFIGURABLE SETTINGS (CON’T) | |||
Function |
Jumper |
Position | |
IDE interface disabled |
JG |
pins 1 & 2 closed | |
» |
Floppy drive interface enabled |
JH |
pins 2 & 3 closed |
Floppy drive interface disabled |
JH |
pins 1 & 2 closed | |
» |
Parallel port unidirectional (printer) |
JI |
Closed |
Parallel port bidirectional |
JI |
Open | |
Note: The location of jumpers JP1, JP2 & JX1 are unidentified |
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 |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
128KB |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
256KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
CPU TYPE CONFIGURATION | ||||
Type |
JC1 |
JC2 |
JC3 |
JC4 |
CX486S |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
pins 1 & 2 closed |
80486SX |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
pins 1 & 2 closed |
CX486DX |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
pins 1 & 2 closed |
AM486DX |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
pins 1 & 2 closed |
80486DX |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
pins 1 & 2 closed |
80486DX2 |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
pins 1 & 2 closed |
P4S |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
pins 1 & 2 closed |
P23S |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
pins 1 & 2 closed |
P24C |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
pins 1 & 2 closed |
P24CT |
pins 1 & 2 closed |
pins 1 & 2 closed |
Closed |
pins 2 & 3 closed |
P24D |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
pins 2 & 3 closed |
P24S |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
pins 1 & 2 closed |
Pentium Overdrive |
pins 1 & 2 closed |
pins 1 & 2 closed |
Closed |
pins 2 & 3 closed |
CPU TYPE CONFIGURATION | |||||
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 |
JK1 |
JK2 |
JK3 |
JK4 |
25MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
33MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
40MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
50iMHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
50MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
66iMHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
75iMHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
100iMHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
CPU SPEED CONFIGURATION (80486DX4 ONLY) | |
Speed |
J20 |
3x |
Open |
2x |
pins 1 & 2 closed |
2.5x |
pins 2 & 3 closed |
CPU VOLTAGE CONFIGURATION | |
Setting |
PS1 |
3.3v |
Installed |
5v |
pins 1 & 2, 3 & 4, 13 & 14, 15 & 16 closed |
VESA WAIT STATE CONFIGURATION | |
Wait states |
JV3 |
0 wait states |
pins 2 & 3 closed |
1 wait state |
pins 1 & 2 closed |
BUS SPEED CONFIGURATION | |
CPU speed |
JV2 |
<= 33MHz |
pins 2 & 3 closed |
> 33MHz |
pins 1 & 2 closed |
PARALLEL PORT CONFIGURATION | ||
Setting |
JE |
JF |
378 |
pins 1 & 2 closed |
pins 2 & 3 closed |
278 |
pins 2 & 3 closed |
pins 1 & 2 closed |
3BC |
pins 2 & 3 closed |
pins 2 & 3 closed |
Disabled |
pins 1 & 2 closed |
pins 1 & 2 closed |
PRINTER CONFIGURATION | ||
Type |
JW3 |
JW4 |
Printer |
pins 2 & 3 closed |
pins 2 & 3 closed |
EPP/SPP |
pins 2 & 3 closed |
pins 1 & 2 closed |
EPP/ECP |
pins 1 & 2 closed |
pins 2 & 3 closed |
EXT2FDD |
pins 1 & 2 closed |
pins 1 & 2 closed |
SERIAL PORT 1 CONFIGURATION | ||
Setting |
JA |
JB |
3F8 |
pins 2 & 3 closed |
pins 1 & 2 closed |
2E8 |
pins 2 & 3 closed |
pins 2 & 3 closed |
3E8 |
pins 1 & 2 closed |
pins 2 & 3 closed |
Disabled |
pins 1 & 2 closed |
pins 1 & 2 closed |
SERIAL PORT 2 CONFIGURATION | ||
Setting |
JC |
JD |
2F8 |
pins 2 & 3 closed |
pins 1 & 2 closed |
2E8 |
pins 1 & 2 closed |
pins 2 & 3 closed |
3E8 |
pins 2 & 3 closed |
pins 2 & 3 closed |
Disabled |
pins 1 & 2 closed |
pins 1 & 2 closed |
DMA CONFIGURATION | ||
DMA |
JW5 |
JW6 |
1 |
pins 1 & 2 closed |
pins 1 & 2 closed |
3 |
pins 2 & 3 closed |
pins 2 & 3 closed |
IDE SPEED CONFIGURATION | ||
Speed |
J5 |
J6 |
1 |
pins 1 & 2 closed |
pins 2 & 3 closed |
0 |
pins 2 & 3 closed |
pins 2 & 3 closed |
2 |
pins 1 & 2 closed |
pins 1 & 2 closed |