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 |