UNIDENTIFIED
386XM-20/OP
|
Processor |
80386SX |
|
Processor Speed |
20/25MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
8MB |
|
Cache |
16/32/64KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Turbo LED |
JP8 |
|
Speaker |
J21 |
Reset switch |
S2 |
|
Power LED & keylock |
J22 |
Turbo switch |
S3 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
CMOS memory normal operation |
JP1 |
pins 2 & 3 closed |
|
CMOS memory clear |
JP1 |
pins 1 & 2 closed | |
|
|
Monitor type select monochrome |
JP2 |
Open |
|
Monitor type select color |
JP2 |
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 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
16KB |
(4) 16K x 1 |
(2) 4K x 4 |
|
32KB |
(4) 4K x 1 |
(2) 4K x 4 |
|
64KB |
(4) 32K x 1 |
(2) 4K x 4 |
|
CACHE JUMPER CONFIGURATION | |||||
|
Size |
JP3 |
JP4 |
JP5 |
JP6 |
JP7 |
|
16KB |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
Open |
|
32KB |
2 & 3 |
1 & 2 |
1 & 2 |
Closed |
Open |
|
64KB |
2 & 3 |
2 & 3 |
2 & 3 |
Open |
Closed |
|
Note: Pins designated should be in the closed position. | |||||