J-MARK COMPUTER CORPORATION
386DX 25/40 NON CACHE
|
Processor |
80386DX |
|
Processor Speed |
25/40MHz |
|
Chip Set |
CGS |
|
Max. Onboard DRAM |
32MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
None |
|
NPU Options |
80387DX/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
JP2 |
Reset switch |
JP9 |
|
Speaker |
JP7 |
Turbo switch |
JP10 |
|
Power LED & keylock |
JP8 |
Turbo LED |
JP11 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
CMOS memory normal operation |
JP3 |
pins 1 & 2 closed |
|
CMOS memory clear |
JP3 |
pins 2 & 3 closed | |
|
» |
NPU synchronous with CPU |
JP5 |
Open |
|
NPU asynchronous with CPU |
JP5 |
Closed | |
|
» |
Monitor type select color |
JP6 |
Closed |
|
Monitor type select monochrome |
JP6 |
Open | |
|
» |
Turbo switch enabled |
JP10 |
Closed |
|
Turbo switch disabled |
JP10 |
Open | |
|
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 |
|
5MB |
(4) 1M x 9 |
(4) 256K x 9 |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
17MB |
(4) 256K x 9 |
(4) 4M x 9 |
|
17MB |
(4) 4M x 9 |
(4) 256K x 9 |
|
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |