FOREX COMPUTER CORPORATION
80386SX-25/33
Processor | 80386SX |
Processor Speed | 25/33MHz |
Chip Set | Forex |
Max. Onboard DRAM | 16MB |
Cache | 16/64KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 80387SX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | JP2 | Power LED & keylock | JP9 |
Turbo LED | JP7 | Speaker | JP10 |
Reset switch | JP8 | Turbo switch | JP11 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select monochrome | JP3 | Closed |
Monitor type select color | JP3 | Open | |
» | Factory configured - do not alter | JP12 | Closed |
» | CMOS memory normal operation | JP13 | Open |
CMOS memory clear | JP13 | Closed |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (2) 256K x 9 | (2) 256K x 9 | NONE | NONE |
2MB | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 |
3MB | (2) 256K x 9 | (2) 256K x 9 | (2) 1M x 9 | NONE |
4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE |
5MB | (2) 256K x 9 | (2) 256K x 9 | (2) 1M x 9 | (2) 1M x 9 |
6MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | NONE |
8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
8MB | (2) 4M x 9 | NONE | NONE | NONE |
9MB | (2) 256K x 9 | (2) 256K x 9 | (2) 4M x 9 | NONE |
10MB | (2) 1M x 9 | (2) 4M x 9 | NONE | NONE |
12MB | (2) 1M x 9 | (2) 1M x 9 | (2) 4M x 9 | NONE |
16MB | (2) 4M x 9 | (2) 4M x 9 | NONE | NONE |
CACHE CONFIGURATION | |||
Size | Bank 0 | TAG (U15) | TAG (U16) |
16KB | (2) 8K x 8 | NONE | (1) 8K x 8 |
64KB | (2) 32K x 8 | (1) 8K x 8 | (1) 8K x 8 |
CACHE JUMPER CONFIGURATION | ||
Size | JP6A | JP6B |
16KB | pins 1 & 2 closed | pins 1 & 2 closed |
64KB | pins 2 & 3 closed | pins 2 & 3 closed |