UNIDENTIFIED
386DX NON-CACHE MAINBOARD (PQFP)
Processor |
80386DX |
Processor Speed |
25/33/40MHz |
Chip Set |
Unidentified |
Video Chip Set |
None |
Maximum Onboard Memory |
64MB (32MB on external memory cards) |
Maximum Video Memory |
None |
Cache |
None |
BIOS |
AMI |
Dimensions |
254mm x 218mm |
I/O Options |
External memory cards (2) |
NPU Options |
80387DX/3167 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
External battery |
JP2 |
Turbo switch |
JP10 |
Speaker |
JP7 |
Turbo LED |
JP11 |
Power LED & keylock |
JP8 |
External memory card |
SL1 & SL2 |
Reset switch |
JP9 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
» |
CMOS memory normal operation |
JP3 |
Pins 1 & 2 closed |
CMOS memory clear |
JP3 |
Pins 2 & 3 closed | |
Monitor type select color |
JP6 |
Closed | |
Monitor type select monochrome |
JP6 |
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) 256K x 9 |
(4) 1M x 9 |
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
16MB |
(4) 4M x 9 |
None |
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
Note: The location of banks 0 & 1 are unidentified. To increase memory beyond 32MB, install external memory card(s). |