UNIDENTIFIED
OPTI 80386 SYSTEM BOARD
|
Processor |
80386DX |
|
Processor Speed |
25/33MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
16MB |
|
Cache |
32/64KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387SX/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
J14 |
Power LED & keylock |
J18 |
|
Reset switch |
J16 |
Speaker |
J19 |
|
Turbo switch |
J17 |
Riser Card |
S1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
Monitor type select color |
J2 |
Closed |
|
Monitor type select monochrome |
J2 |
Open | |
|
» |
Battery type select internal |
J5 |
pins 2 & 3 closed |
|
Battery type select external |
J5 |
pins 1 & 4 closed | |
|
» |
Weitek 3167 installed |
J6 |
Closed |
|
Weitek 3167 not installed |
J6 |
Open | |
|
» |
Cache type select pipeline |
J7 |
pins 2 & 3 closed |
|
Cache type select non-pipeline |
J7 |
pins 1 & 2 closed | |
|
» |
NPU enabled |
J8 |
pins 1 & 2 closed |
|
NPU disabled |
J8 |
pins 2 & 3 closed | |
|
» |
Factory configured - do not alter |
J10 |
pins 1 & 2 closed |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
3MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
|
4MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
5MB |
(4) 1M x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
6MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
|
6MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
NONE |
|
6MB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
|
7MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
|
7MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
7MB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
9MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
9MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
NONE |
|
9MB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
|
10MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
10MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
|
10MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
10MB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
|
12MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
13MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
13MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
|
13MB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
Note: Bank 2 and Bank 3 are on the riser card. | ||||
|
CACHE CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
TAG0 |
TAG1 |
|
32KB |
(4) 8K x 8 |
NONE |
(3) 8K x 8 |
NONE |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(3) 8K x 8 |
(1) 8K x 8 |
|
EXTERNAL MEMORY CARD CONFIGURATION | |
|
Select |
J15 |
|
32KB installed |
pins 1 & 2 closed |
|
64KB installed |
pins 2 & 3 closed |
|
Not installed |
Open |
|
CACHE SIZE CONFIGURATION | ||
|
Size |
J9 |
J13 |
|
32KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
64KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
CLOCK SELECT CONFIGURATION | ||
|
Select |
J3 |
J4 |
|
External |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Internal |
pins 2 & 3 closed |
pins 2 & 3 closed |