ABIT COMPUTER CORPORATION
FU3 (VER. 2)
|
Processor |
80386DX |
|
Processor Speed |
25/33/40MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
32MB |
|
Maximum Video Memory |
None |
|
Cache |
32/64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387DX/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
D4 |
Turbo switch |
J50 |
|
Speaker |
J18 |
Reset switch |
J51 |
|
Power LED & keylock |
J19 |
External battery |
JP2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
» |
Factory configured - do not alter |
J21 |
Open |
|
» |
Monitor type select monochrome |
J23 |
Open |
|
Monitor type select color |
J23 |
Closed | |
|
» |
CMOS memory normal operation |
J42 |
Pins 2 & 3 closed |
|
CMOS memory clear |
J42 |
Pins 1 & 2 closed | |
|
» |
Factory configured - do not alter |
JP10 |
Unidentified |
|
» |
Factory configured - do not alter |
JP11 |
Unidentified |
|
» |
Factory configured - do not alter |
JP30 |
Closed |
|
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 |
(1) 8K x 8 |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(2) 16K x 4 |
|
128KB |
(4) 32K x 8 |
None |
(1) 32K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(2) 64K x 4 |
|
Note: The location of banks 0 & 1 and TAG are unidentified. | |||
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
J26 |
J27 |
J28 |
J29 |
|
32KB |
Pins 1 & 2 closed |
Open |
Open |
Closed |
|
64KB |
Pins 1 & 2 closed |
Closed |
Open |
Closed |
|
128KB |
Pins 2 & 3 closed |
Closed |
Open |
Closed |
|
256KB |
Pins 2 & 3 closed |
Closed |
Closed |
Open |
|
CACHE JUMPER CONFIGURATION (CON’T) | |||||
|
Size |
J33 |
J34 |
J35 |
J36 |
J37 |
|
32KB |
Closed |
Open |
2 & 3 |
2 & 3 |
2 & 3 |
|
64KB |
Closed |
1 & 2 |
Open |
2 & 3 |
2 & 3 |
|
128KB |
Open |
1 & 2 |
Open |
1 & 2 |
1 & 2 |
|
256KB |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||||
|
CACHE JUMPER CONFIGURATION (CON’T) | ||||
|
Size |
J38 |
J39 |
J41 |
J52 |
|
32KB |
Open |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
|
64KB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Open |
Pins 1 & 2 closed |
|
128KB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
256KB |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |