UNIDENTIFIED
386SX25/20/16
|
Processor |
80386SX |
|
Processor Speed |
16/20/25MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
16MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
223mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
JP2 |
Reset switch |
JP10 |
|
Speaker |
JP8 |
Turbo switch |
JP11 |
|
Power LED & keylock |
JP9 |
Turbo LED |
JP12 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
| » |
Monitor type select monochrome |
JP1 |
Open |
|
Monitor type select color |
JP1 |
Closed | |
| » |
CMOS memory normal operation |
JP3 |
pins 2 & 3 closed |
|
CMOS memory clear |
JP3 |
pins 1 & 2 closed | |
|
DRAM CONFIGURATION | ||||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Parity (P-2) |
Bank 3 |
Parity (P-3) |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
NONE |
NONE |
NONE |
|
1MB |
NONE |
NONE |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
|
2MB |
(2) 256K x 9 |
(2) 256K x 9 |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
|
3MB |
(2) 256K x 9 |
(2) 256K x 9 |
(4) 441000 |
(2) 411000 |
NONE |
NONE |
|
3MB |
(2) 1M x 9 |
NONE |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
NONE |
NONE |
NONE |
|
4MB |
NONE |
NONE |
(4) 441000 |
(2) 411000 |
(4) 441000 |
(2) 411000 |
|
5MB |
(2) 1M x 9 |
(2) 1M x 9 |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
|
5MB |
(2) 256K x 9 |
(2) 256K x 9 |
(4) 441000 |
(2) 411000 |
(4) 441000 |
(2) 411000 |
|
6MB |
(2) 1M x 9 |
(2) 1M x 9 |
(4) 441000 |
(2) 411000 |
NONE |
NONE |
|
6MB |
(2) 1M x 9 |
NONE |
(4) 441000 |
(2) 411000 |
(4) 441000 |
(2) 411000 |
|
8MB |
(2) 1M x 9 |
(2) 1M x 9 |
(4) 441000 |
(2) 411000 |
(4) 441000 |
(2) 411000 |
|
10MB |
(2) 1M x 9 |
(2) 4M x 9 |
NONE |
NONE |
NONE |
NONE |
|
12MB |
(2) 4M x 9 |
NONE |
(4) 441000 |
(2) 411000 |
(4) 441000 |
(2) 411000 |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
NONE |
NONE |
NONE |
|
DRAM JUMPER CONFIGURATION | ||||||
|
Size |
JP4 |
JP5 |
JP6 |
JP7 |
JP8 |
JP9 |
|
1MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
1MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
2MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
3MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
3MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
4MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
4MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
5MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
5MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
6MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
6MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
8MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
10MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
12MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
16MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
Note:Pins designated should be in the closed position. | ||||||