ABIT COMPUTER CORPORATION
FU3
|
Processor |
80386SX |
|
Processor Speed |
25/33MHz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
32MB |
|
Cache |
32/64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387SX/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
D4 |
Power LED & keylock |
J19 |
|
External battery |
JP2 |
Turbo switch |
J50 |
|
Speaker |
J18 |
Reset switch |
J51 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Factory configured - do not alter |
J21 |
Open |
|
|
Fast gate A20 enabled |
J22 |
Closed |
|
Fast gate A20 disabled |
J22 |
Open | |
|
|
Monitor type select color |
J23 |
Closed |
|
Monitor type select monochrome |
J23 |
Open | |
|
|
CMOS memory normal operation |
J42 |
pins 2 & 3 closed |
|
CMOS memory clear |
J42 |
pins 1 & 2 closed | |
|
|
Factory configured - do not alter |
JP1 |
N/A |
|
DRAM CONFIGURATION | ||
|
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 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
32KB |
(4) 8K x 8 |
NONE |
(2) 16K x 8 |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(2) 16K x 8 |
|
128KB |
(4) 32K x 8 |
NONE |
(2) 64K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(2) 64K x 8 |
|
CACHE JUMPER CONFIGURATION | |||||||
|
Size |
J26 |
J27 |
J28 |
J29 |
J33 |
J34 |
J35 |
|
32KB |
1 & 2 |
Open |
Open |
Closed |
Closed |
1 & 2 |
2 & 3 |
|
64KB |
1 & 2 |
1 & 2 |
Open |
Closed |
Closed |
Open |
1 & 2 |
|
128KB |
2 & 3 |
1 & 2 |
2 & 3 |
Closed |
Open |
1 & 2 |
1 & 2 |
|
256KB |
2 & 3 |
1 & 2 |
1 & 2 |
Open |
Open |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||||||
|
CACHE JUMPER CONFIGURATION( CONT) | |||||||
|
Size |
J36 |
J37 |
J38 |
J39 |
J41 |
J52 |
J60 |
|
32KB |
2 & 3 |
2 & 3 |
Open |
2 & 3 |
Open |
1 & 2 |
Open |
|
64KB |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
Open |
|
128KB |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
Closed |
2 & 3 |
Open |
|
256KB |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
Closed |
2 & 3 |
Closed |
|
Note: Pins designated should be in the closed position. The locations of J52 & J60 are unidentified. | |||||||