UNIDENTIFIED
UM 386SX
Processor | 80386SX |
Processor Speed | 16/20/24MHz |
Chip Set | UMC |
Max. Onboard DRAM | 5MB |
Cache | None |
BIOS | AMI |
Dimensions | 221mm x 216mm |
I/O Options | None |
NPU Options | 80387SX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | J1 | Turbo switch | J5 |
Power LED & keylock | J2 | External battery | J6 |
Reset switch | J3 | Auxiliary keyboard | JP2 |
Turbo LED | J4 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select color | JP3 | Closed |
Monitor type select monochrome | JP3 | Open |
DRAM CONFIGURATION | ||||||
Size | Bank 0 | Parity (P-0) | Bank 1 | Parity (P-1) | Bank 2 | Bank 3 |
512KB | (4) 44256 | (2) 41256 | NONE | NONE | NONE | NONE |
512KB | NONE | NONE | NONE | NONE | (2) 256K x 9 | NONE |
1MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | NONE | NONE |
1MB | NONE | NONE | NONE | NONE | (2) 256K x 9 | (2) 256K x 9 |
2MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | (2) 256K x 9 | (2) 256K x 9 |
2MB | NONE | NONE | NONE | NONE | (2) 1M x 9 | NONE |
3MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | (2) 1M x 9 | NONE |
4MB | NONE | NONE | NONE | NONE | (2) 1M x 9 | (2) 1M x 9 |
5MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | (2) 1M x 9 | (2) 1M x 9 |
DRAM JUMPER CONFIGURATION | |
Size | JP1 |
512KB | pins 1&2, 3&4, 5&6, 7&8, 9&10, 11&12, 13&14, 15&16, 17&18, 19&20, 21&22, 23&24 |
512KB | pins 1&3, 2&4, 5&7, 6&8, 9&11, 10&12, 13&15, 14&16, 17&19, 18&20, 21&23, 22&24 |
1MB | pins 1&2, 3&4, 5&6, 7&8, 9&10, 11&12, 13&14, 15&16, 17&18, 19&20, 21&22, 23&24 |
1MB | pins 1&3, 2&4, 5&7, 6&8, 9&11, 10&12, 13&15, 14&16, 17&19, 18&20, 21&23, 22&24 |
2MB | pins 1&2, 3&4, 5&6, 7&8, 9&10, 11&12, 13&14, 15&16, 17&18, 19&20, 21&22, 23&24 |
2MB | pins 1&3, 2&4, 5&7, 6&8, 9&11, 10&12, 13&15, 14&16, 17&19, 18&20, 21&23, 22&24 |
3MB | pins 1&2, 3&4, 5&6, 7&8, 9&10, 11&12, 13&14, 15&16, 17&18, 19&20, 21&22, 23&24 |
4MB | pins 1&3, 2&4, 5&7, 6&8, 9&11, 10&12, 13&15, 14&16, 17&19, 18&20, 21&23, 22&24 |
5MB | pins 1&2, 3&4, 5&6, 7&8, 9&10, 11&12, 13&14, 15&16, 17&18, 19&20, 21&22, 23&24 |
Note:Pins designated should be in the closed position. |
DRAM PARITY CONFIGURATION | ||
Setting | JP4 | JP5 |
Enabled | Closed | Closed |
Disabled | Open | Open |