NORTHGATE COMPUTER SYSTEMS, INC.
386/486/486SX (386 BOARD)
Processor |
80386DX |
Processor Speed |
25/33/40MHz |
Chip Set |
OPTI |
Max. Onboard DRAM |
32MB |
Cache |
64KB |
BIOS |
AMI |
Dimensions |
330mm x 218mm |
I/O Options |
32-bit external memory card slot |
NPU Options |
80387/3167 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
External battery |
J10 |
Reset switch |
J23 pins 9 & 19 |
Speaker |
J23 pins 1 - 4 |
Power LED & Keylock |
J23 pins 11 - 15 |
Turbo switch |
J23 pins 7 & 17 |
32-bit external memory card |
S1 |
Turbo LED |
J23 pins 8 & 18 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
Monitor type select monochrome |
JP1 |
Open |
Monitor type select color |
JP1 |
Closed | |
» |
Battery type select internal |
JP2 |
pins 2 & 3 closed |
Battery type select external |
JP2 |
pins 1 & 2 closed | |
» |
Factory configured - do not alter |
JP3 |
Open |
» |
Factory configured - do not alter |
JP4 |
N/A |
» |
Factory configured - do not alter |
JP9 |
N/A |
» |
Factory configured - do not alter |
JP12 |
N/A |
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 |
16MB |
(4) 4M x 9 |
NONE |
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
CACHE CONFIGURATION | |||
Size |
Bank 0 |
TAG |
Dirty Bit |
64KB |
(8) 8K x 8 |
(2) 4K x 4 |
(1) 16K x 1 |
Note:The cache, TAG, and dirty bit chip locations and sizes are unidentified. |