FOREX COMPUTER COMPANY
386 CACHE SYSTEM BOARD
|
Processor |
80386DX/AM386DX |
|
Processor Speed |
33/40MHz |
|
Chip Set |
Forex |
|
Max. Onboard DRAM |
64MB |
|
Cache |
32/64/128KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
external memory card slot |
|
NPU Options |
80387/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
JP2 |
Speaker |
JP10 |
|
Turbo LED |
JP7 |
Turbo switch |
JP11 |
|
Reset switch |
JP8 |
External memory card |
S1 |
|
Power LED & keylock |
JP9 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select color |
JP3 |
Open | |
|
Monitor type select monochrome |
JP3 |
Closed | |
|
NPU mode select synchronous with CPU |
JP5 |
pins 1 & 2 closed | |
|
NPU mode select synchronous with oscillator installed at Y1 |
JP5 |
pins 2 & 3 closed | |
|
External battery select 6.0VDC |
JP200 |
Open | |
|
External battery select 3.6VDC |
JP200 |
Closed | |
|
Factory configured - do not alter |
JP201 |
N/A | |
|
CMOS memory normal operation |
JP202 |
Open | |
|
CMOS memory clear |
JP202 |
Closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
4MB |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
6MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
9MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
12MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
NONE |
NONE |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
NONE |
NONE |
|
24MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 4M x 9 |
NONE |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
NONE |
NONE |
|
36MB |
(4) 1M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
NONE |
|
48MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
NONE |
|
64MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
|
Note:Banks 2 & 3 are used when a 32-bit external memory card is installed. | ||||
|
CACHE CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Tag1 |
Tag0 |
|
32KB |
(4) 8K x 8 |
NONE |
(1) 8K x 8 |
NONE |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 32K x 8 |
NONE |
|
CACHE JUMPER CONFIGURATION | |
|
Size |
JP6 |
|
32KB |
pins 1 & 2 closed |
|
64KB |
pins 2 & 3 closed |
|
128KB |
pins 2 & 3 closed |