FIRST INTERNATIONAL COMPUTER, INC.
486-PVT (REV. B1)
|
Processor |
CX486SX/80486SX/SL80486SX/AM486DX/AM486DXSL/80486DX/CX486DX/ CX486DXV/CX486DX2/CX486DX2VAM486DX2/AM486DX2SL/80486DX2/ 80486DX4/P24CT/P24D/Pentium Overdrive |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz |
|
Chip Set |
VIA |
|
Max. Onboard DRAM |
128MB |
|
Cache |
128/256/512KB |
|
BIOS |
Award |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (2), green PC connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Daughter board connector |
CN6 |
Speaker |
J8 |
|
Green PC LED |
J3 |
Power LED & keylock |
J9 |
|
Green PC connector |
J4 |
Green PC connector |
J10 |
|
Turbo LED |
J5 |
Chassis fan power |
J11 |
|
Turbo switch |
J6 |
32-bit VESA local bus slots |
SL1 & SL2 |
|
Reset switch |
J7 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
AMD CPU speed select 2x |
J2 |
Closed | |
|
AMD CPU speed select 3x |
J2 |
Open | |
|
AMD CPU type select DX2 |
J12 |
Open | |
|
AMD CPU type select DX4 |
J12 |
Closed | |
|
CMOS memory normal operation |
JCP |
Open | |
|
CMOS memory clear |
JCP |
Closed | |
|
Monitor type select monochrome/EGA/VGA |
JP1 |
Open | |
|
Monitor type select color |
JP1 |
Closed | |
|
Factory configured - do not alter |
JP2 |
N/A | |
|
CPU type select all CPU types |
JP3 |
pins 1 & 2 closed | |
|
CPU type select Cyrix CPU only |
JP3 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(1) 256K x 36 |
NONE |
NONE |
NONE |
|
1MB |
NONE |
(1) 256K x 36 |
NONE |
NONE |
|
1MB |
NONE |
NONE |
(1) 256K x 36 |
NONE |
|
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
NONE |
|
2MB |
(1) 256K x 36 |
NONE |
(1) 256K x 36 |
NONE |
|
2MB |
NONE |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
|
2MB |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
|
3MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
|
3MB |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
3MB |
(1) 256K x 36 |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
|
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
|
4MB |
NONE |
(1) 1M x 36 |
NONE |
NONE |
|
4MB |
NONE |
NONE |
(1) 1M x 36 |
NONE |
|
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
5MB |
(1) 256K x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
5MB |
(1) 256K x 36 |
NONE |
(1) 1M x 36 |
NONE |
|
5MB |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
NONE |
|
5MB |
(1) 1M x 36 |
NONE |
(1) 256K x 36 |
NONE |
|
5MB |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
NONE |
|
5MB |
NONE |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
|
6MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
NONE |
|
6MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
|
6MB |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
|
6MB |
NONE |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
6MB |
(1) 1M x 36 |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
|
7MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
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 |
|
8MB |
(1) 1M x 36 |
NONE |
(1) 1M x 36 |
NONE |
|
8MB |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
DRAM CONFIGURATION (CONT) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
8MB |
NONE |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
|
9MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
9MB |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
NONE |
|
9MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
|
9MB |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
9MB |
(1) 256K x 36 |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
|
10MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
10MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
12MB |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
12MB |
(1) 1M x 36 |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
|
13MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
13MB |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
NONE |
(1) 4M x 36 |
NONE |
NONE |
|
16MB |
NONE |
NONE |
(1) 4M x 36 |
NONE |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
17MB |
(1) 256K x 36 |
NONE |
(1) 4M x 36 |
NONE |
|
17MB |
NONE |
(1) 256K x 36 |
(1) 4M x 36 |
NONE |
|
17MB |
NONE |
(1) 4M x 36 |
(1) 256K x 36 |
NONE |
|
18MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
NONE |
|
18MB |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
NONE |
|
18MB |
NONE |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
19MB |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
20MB |
(1) 1M x 36 |
NONE |
(1) 4M x 36 |
NONE |
|
20MB |
NONE |
(1) 1M x 36 |
(1) 4M x 36 |
NONE |
|
20MB |
NONE |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
|
21MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
NONE |
|
21MB |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
|
21MB |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
NONE |
|
21MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
NONE |
|
22MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
24MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
NONE |
|
24MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
|
24MB |
NONE |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
25MB |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
28MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
32MB |
NONE |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
|
32MB |
(1) 8M x 36 |
NONE |
NONE |
NONE |
|
32MB |
NONE |
(1) 8M x 36 |
NONE |
NONE |
|
32MB |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
33MB |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
33MB |
NONE |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
DRAM CONFIGURATION (CONT) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
33MB |
(1) 256K x 36 |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
|
34MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
36MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
36MB |
NONE |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
36MB |
(1) 1M x 36 |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
|
37MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
37MB |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
40MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
48MB |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
49MB |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
52MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
NONE |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
|
65MB |
(1) 256K x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
|
66MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
66MB |
(1) 256K x 36 |
(1) 8M x 36 |
(1) 256K x 36 |
(1) 8M x 36 |
|
66MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
68MB |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
|
68MB |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
|
68MB |
NONE |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
68MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 1M x 36 |
NONE |
|
69MB |
(1) 256K x 36 |
(1) 8M x 36 |
(1) 1M x 36 |
(1) 8M x 36 |
|
69MB |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
69MB |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 256K x 36 |
(1) 8M x 36 |
|
72MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
72MB |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 1M x 36 |
(1) 8M x 36 |
|
72MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
80MB |
(1) 8M x 36 |
(1) 4M x 36 |
(1) 8M x 36 |
NONE |
|
80MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 4M x 36 |
NONE |
|
81MB |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
81MB |
(1) 256K x 36 |
(1) 8M x 36 |
(1) 4M x 36 |
(1) 8M x 36 |
|
84MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
84MB |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 4M x 36 |
(1) 8M x 36 |
|
96MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
|
97MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 256K x 36 |
|
128MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
128KB |
(4) 32K x 8 |
(1) 8K x 8 or (1) 32K x 8 |
|
256KB |
(4) 64K x 8 |
(1) 32K x 8 |
|
512KB |
(4) 128K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | ||
|
Size |
JS1 |
JS2 |
|
128KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
256KB |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
512KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
CPU TYPE CONFIGURATION | |||||
|
Type |
JC1 |
JC2 |
JC3 |
JC4 |
JC5 |
|
CX486SX |
2 & 3 |
2 & 3 |
1 & 2 |
Open |
2 & 3 |
|
80486SX |
2 & 3 |
2 & 3 |
1 & 2 |
Open |
1 & 2 |
|
SL80486SX |
2 & 3 |
2 & 3 |
1 & 2 |
Open |
1 & 2 |
|
AM486DX |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
|
AM486DXSL |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
|
80486DX |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
|
CX486DX |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
|
CX486DXV |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
2 & 3 |
|
CX486DX2 |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
|
CX486DX2V |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
2 & 3 |
|
AM486DX2 |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
|
AM486DX2SL |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
|
80486DX2 |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
|
80486DX4 |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
|
P24CT |
1 & 2 |
1 & 2 |
1 & 2 |
Closed |
1 & 2 |
|
P24D |
1 & 2 |
1 & 2 |
1 & 2 |
Closed |
1 & 2 |
|
P24T |
1 & 2 |
1 & 2 |
1 & 2 |
Closed |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU TYPE CONFIGURATION | ||||
|
Type |
RN16 |
RN17 |
RN18 |
RN19 |
|
CX486SX |
Installed |
Not installed |
Not installed |
Not installed |
|
80486SX |
Not installed |
Not installed |
Not installed |
Installed |
|
SL80486SX |
Not installed |
Not installed |
Not installed |
Installed |
|
AM486DX |
Not installed |
Not installed |
Installed |
Not installed |
|
CX486DX |
Installed |
Not installed |
Not installed |
Not installed |
|
CX486DXV |
Installed |
Not installed |
Not installed |
Not installed |
|
80486DX |
Not installed |
Not installed |
Not installed |
Installed |
|
SL80486DX |
Not installed |
Not installed |
Not installed |
Installed |
|
AM486DX2 |
Not installed |
Not installed |
Installed |
Not installed |
|
CX486DX2 |
Installed |
Not installed |
Not installed |
Not installed |
|
CX486DX2V |
Installed |
Not installed |
Not installed |
Not installed |
|
80486DX2 |
Not installed |
Not installed |
Not installed |
Installed |
|
SL80486DX2 |
Not installed |
Not installed |
Not installed |
Installed |
|
80486DX4 |
Not installed |
Not installed |
Not installed |
Installed |
|
AM486DX4 |
Not installed |
Not installed |
Installed |
Not installed |
|
P24D |
Not installed |
Installed |
Not installed |
Installed |
|
Pentium Overdrive |
Not installed |
Installed |
Not installed |
Installed |
|
Note: The locations of RN16 - RN19 are unidentified. | ||||
|
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 VOLTAGE CONFIGURATION | ||
|
Voltage |
JCV1 |
JCV2 |
|
3v |
pins 1 & 2 closed |
Open |
|
3.3v |
pins 2 & 3 closed |
Open |
|
3.45v |
Open |
Open |
|
3.6v |
Open |
pins 1 & 2 closed |
|
4v |
Open |
pins 2 & 3 closed |
|
VESA WAIT STATE CONFIGURATION | |
|
Wait states |
JV1 |
|
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 |
|
DAUGHTER BOARD CONFIGURATION | |
|
Setting |
CN6 |
|
Not installed |
pins 1 & 2, 3 & 4, 13 & 14, 15 & 16 closed |
|
Installed |
Closed |