J-MARK COMPUTER CORPORATION
386-25
Processor |
AM386/80386 (exact location unidentified) |
Processor Speed |
25MHz |
Chip Set |
OPTI |
Video Chip Set |
None |
Maximum Onboard Memory |
16MB ( 8MB on external card) |
Maximum Video Memory |
None |
Cache |
None |
BIOS |
AMI |
Dimensions |
330mm x 218mm |
I/O Options |
External memory card |
NPU Options |
80387/3167 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Turbo LED |
CR4 |
External memory card |
SL1 |
External battery |
J10 |
Reset switch |
SW1 |
Speaker |
J22 |
Turbo switch |
SW2 |
Power LED & keylock |
J23 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
Monitor type select color |
JP1 |
Pins 1 & 2 closed | |
Monitor type select monochrome |
JP1 |
Pins 2 & 3 closed |
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) 256K x 9 |
(4) 1M x 9 |
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
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 |
3MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
None |
4MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
4MB |
(4) 1M x 9 |
None |
None |
None |
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
None |
None |
6MB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
None |
6MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
None |
6MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
None |
7MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
7MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
7MB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
DRAM CONFIGURATION (CONT) | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
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 |
9MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
None |
9MB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
None |
10MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
10MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
10MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
10MB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
12MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
None |
13MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
13MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
13MB |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
Note: If this board has 16MB installed, the on board memory is disabled. |