FIRST INTERNATIONAL COMPUTER, INC.
486 GAW-V
|
Processor |
CX486S/CS487S/CS486DX/80486SX/80486DX/80486DX2/80486DX4/ Pentium Overdrive |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
VIA |
|
Max. Onboard DRAM |
64MB |
|
Cache |
64/128/256KB |
|
BIOS |
Award |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slot, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Green power supply connector |
J1 |
Serial port 2 |
CN5 |
|
IDE interface LED |
J5 |
Parallel port |
CN6 |
|
Turbo LED |
J9 |
VGA port |
CN7 |
|
Turbo switch |
J10 |
VGA feature connector |
CN8 |
|
Reset switch |
J11 |
IDE drive interface |
CN9 |
|
Power LED & keylock |
J12 |
Floppy drive interface |
CN10 |
|
Speaker |
J13 |
Daughter board connector |
CN11 |
|
PS/2 mouse port |
CN3 |
32-bit VESA Local bus slot |
SL1 |
|
Serial port 1 |
CN4 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
HDD IOCHRDY disabled |
J2 |
Open |
|
HDD IOCHRDY enabled |
J2 |
Closed | |
|
|
HDD BALE disabled |
J3 |
Open |
|
HDD BALE enabled |
J3 |
Closed | |
|
|
Non Intel SL-enhanced CPU |
J4, J16, JX5 |
pins 1 & 2 closed |
|
Intel SL-enhanced CPU |
J4, J16, JX5 |
pins 2 & 3 closed | |
|
|
CMOS memory normal operation |
J7 |
Open |
|
CMOS memory clear |
J7 |
Closed | |
|
|
Factory configured - do not alter |
J8 |
pins 1 & 2 closed |
|
|
Adaptec ISA master 1542B/C SCSI (transfer rate <5.7 MB/s) |
J14 |
Open |
|
Adaptec ISA master 1542B/C SCSI (transfer rate >5.7 MB/s) |
J14 |
Closed | |
|
|
Intel DX4 clock select (3X) |
JC6 |
Open |
|
Intel DX4 clock select (2.5X) |
JC6 |
pins 1 & 2 closed | |
|
Intel DX4 clock select (2X) |
JC6 |
pins 2 & 3 closed | |
|
|
Pentium Overdrive write back enabled |
JC7 |
Closed |
|
Pentium Overdrive write through enabled |
JC7 |
Open | |
|
|
Intel CPU installed |
JC8 |
Closed |
|
Cyrix CPU installed |
JC8 |
Open | |
|
|
IDE interface enabled |
JD3 |
pins 1 & 2 closed |
|
IDE interface disabled |
JD3 |
pins 2 & 3 closed | |
|
|
Onboard VGA enabled |
JV1, JV2 |
pins 2 & 3 closed |
|
Onboard VGA disabled |
JV1, JV2 |
pins 1 & 2 closed | |
|
|
VGA IRQ9 disabled |
JV3 |
Open |
|
VGA IRQ9 enabled |
JV3 |
Closed | |
|
|
DX33 CPU installed |
JV4/11 & 12 |
Open |
|
DX50/DX4 CPU installed |
JV4/11 & 12 |
Closed | |
|
|
Intel SL enhanced CPU installed |
JX4 |
pins 1 & 2 closed |
|
Cyrix 486S/DX CPU installed |
JX4 |
pins 2 & 3 closed | |
|
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 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
256KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
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 |
|
8MB |
(1) 2M x 36 |
NONE |
NONE |
NONE |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
12MB |
(1) 2M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
12MB |
NONE |
(1) 2M x 36 |
(1) 1M x 36 |
NONE |
|
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 |
(1) 2M x 36 |
(1) 1M x 36 |
NONE |
(1) 1M x 36 |
|
16MB |
(1) 1M x 36 |
(1) 2M x 36 |
(1) 1M x 36 |
NONE |
|
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
NONE |
NONE |
|
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 |
(1) 8M x 36 |
NONE |
NONE |
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 |
(1) 8M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
48MB |
NONE |
(1) 8M x 36 |
(1) 4M x 36 |
NONE |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 8M x 36 |
(1) 4M x 36 |
NONE |
(1) 4M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 8M x 36 |
(1) 4M x 36 |
NONE |
|
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
NONE |
.
|
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 |
|
CPU TYPE CONFIGURATION | ||||
|
CPU Type |
JC1 |
JC2 |
JC3 |
JC4 |
|
486SX/P23S/CX486S |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
pins 1 & 2 closed |
|
CX486DX/486S-487S |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
pins 1 & 2 closed |
|
P24S/P4S |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
pins 1 & 2 closed |
|
80486DX/DX2/DX4 |
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 |
|
P24D |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
pins 2 & 3 closed |
|
CPU TYPE CONFIGURATION | |||
|
CPU Type |
JC5 |
RC1 |
RC2 |
|
CX486S/DX |
Open |
Not installed |
Installed |
|
486SX/DX/DX2 |
Open |
Not installed |
Not Installed |
|
P23S/P24S/P4S |
Closed |
Not installed |
Not installed |
|
P24D/P24CT/DX4 |
Closed |
Installed |
Not installed |
|
HARD DRIVE SPEED SELECT | ||
|
Speed |
JD1 |
JD2 |
|
Speed 0 |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
Speed 1 |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
Speed 2 |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Note:Used only with the Promise PDC20230 local bus IDE controller card. | ||
|
VESA WAIT STATE/BUS SPEED CONFIGURATION | |||
|
CPU speed |
Wait states |
JL1 |
JL2 |
|
< 33MHz |
0 wait states |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
> 33MHz |
1 wait state |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
800 X 600 REFRESH RATES | ||
|
Speed |
JV4/1 & 2 |
JV4/3 & 4 |
|
56MHz (default) |
Open |
Open |
|
56MHz |
Closed |
Closed |
|
60MHz |
Open |
Closed |
|
72MHz |
Closed |
Open |
|
1024 X 768 REFRESH RATES | ||
|
Speed |
JV4/5 & 6 |
JV4/7 & 8 |
|
Interlaced |
Open |
Open |
|
60Hz non-interlaced |
Open |
Closed |
|
70Hz non-interlaced |
Closed |
Open |
|
72Hz non-interlaced |
Closed |
Closed |
|
VIDEO FONT SETTINGS | |
|
Font |
JV4/9 & 10 |
|
Standard fonts |
Open |
|
TUV fonts |
Closed |
|
Note: TUV is the German standard for character spacing, and may not be compatible with some DOS applications. | |