FIRST INTERNATIONAL COMPUTER, INC.
486 PSD
|
Processor |
80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/50(internal)/50/66(internal)/66MHz |
|
Chip Set |
SIO |
|
Max. Onboard DRAM |
64MB |
|
Cache |
64/256KB |
|
BIOS |
Award/AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit PCI slots, SCSI interface, PS/2 mouse port |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
J11 |
IDE interface LED |
CN1 |
|
Turbo switch |
J12 |
SCSI interface |
CN3 |
|
Reset switch |
J13 |
PS/2 mouse |
CN5 |
|
Speaker |
J14 |
32-bit PCI slots |
S1, S2, S3 |
|
Power LED & keylock |
J15 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
SCSI power from system |
J1 |
Closed |
|
SCSI power from peripheral device |
J1 |
Open | |
|
|
BIOS type select - Award |
J7 |
pins 1 & 2 closed |
|
BIOS type select -AMI |
J7 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
J9 |
pins 1 & 2 closed |
|
|
Factory configured - do not alter |
J10 |
pins 1 & 2 closed |
|
|
CPU type select - PGA |
JC5 |
Closed |
|
CPU type select - PQFP |
JC5 |
Open | |
|
|
Parity error disabled |
JF1 |
pins 1 & 2 closed |
|
Parity error enabled |
JF1 |
pins 2 & 3 closed | |
|
|
CPU generation parity |
JF2 |
pins 1 & 2 closed |
|
DPU generation parity |
JF2 |
pins 2 & 3 closed | |
|
|
Cache wait state disabled |
JF5 |
pins 2 & 3 closed |
|
Cache wait state enabled |
JF5 |
pins 1 & 2 closed | |
|
|
Factory configured - do not alter |
JF6 |
pins 1 & 2 closed |
|
|
7-bit tag address |
JF7 |
pins 2 & 3 closed |
|
8-bit tag address |
JF7 |
pins 1 & 2 closed | |
|
|
L2 cache enabled |
JF8 |
pins 2 & 3 closed |
|
L2 cache disabled |
JF8 |
pins 1 & 2 closed | |
|
|
Cache select - 256KB |
JS1 |
pins 2 & 3 closed |
|
Cache select - 64KB |
JS1 |
pins 1 & 2 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
2MB |
(1) 256KB x 36 |
(1) 256KB x 36 |
NONE |
NONE |
|
4MB |
(1) 256KB x 36 |
(1) 256KB x 36 |
(1) 256KB x 36 |
(1) 256KB x 36 |
|
5MB |
(1) 1M x 36 |
(1) 256KB x 36 |
NONE |
NONE |
|
4MB |
(1) 1M x 36 |
(1) 256KB x 36 |
NONE |
NONE |
|
7MB |
(1) 1M x 36 |
(1) 256KB x 36 |
(1) 256KB x 36 |
(1) 256KB x 36 |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
17MB |
(1) 4M x 36 |
(1) 256KB x 36 |
NONE |
NONE |
|
19MB |
(1) 4M x 36 |
(1) 256KB x 36 |
(1) 256KB x 36 |
(1) 256KB x 36 |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
22MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 256KB x 36 |
(1) 256KB x 36 |
|
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 |
|
34MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 256KB x 36 |
(1) 256KB x 36 |
|
40MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
|
Note: The location of the tag chip is unidentified. | ||
|
CACHE JUMPER CONFIGURATION | ||
|
Size |
JF9 |
JF10 |
|
64KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
256KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
CACHE SELECT CONFIGURATION | ||||
|
Size |
JS2 |
JS3 |
JS4 |
JS5 |
|
64KB |
Open |
Open |
Open |
Open |
|
256KB |
Closed |
Closed |
Closed |
Closed |
|
CPU PROCESSOR CONFIGURATION | ||
|
CPU |
JC1/JC2 |
JC3/JC4 |
|
SX |
pins 2 & 3 closed |
Open |
|
DX/DX2 |
pins 1 & 2 closed |
Closed |
|
CPU TYPE CONFIGURATION | ||
|
Speed |
JF3 |
JF4 |
|
25MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
33MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
SCSI CONFIGURATION | ||
|
Request/IRQ9 |
JR1 |
JR2 |
|
Installed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Not installed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
PCI IRQ CONFIGURATION | |
|
IRQ setting |
JI1 |
|
IRQ 5 |
pins 1 & 2 closed |
|
IRQ 9 |
pins 3 & 4 closed |
|
IRQ 11 |
pins 5 & 6 closed |
|
IRQ 12 |
pins 7 & 8 closed |