JPN CORPORATION
MB386SX
Processor | 80386SX |
Processor Speed | 16/20/25MHz |
Chip Set | VLSI |
Max. Onboard DRAM | 4MB |
Cache | None |
BIOS | AMI |
Dimensions | 220mm x 220mm |
I/O Options | None |
NPU Options | 80387SX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | JP20 | Turbo switch | JP52 |
Power LED & keylock | JP30 | Turbo LED | JP56 |
Reset switch | JP51 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Pipeline mode enabled | JP10 | closed |
Pipeline mode disabled | JP10 | open | |
» | BIOS type select 27256 | JP23 JP24 | open closed |
BIOS type select 27128 | JP23 JP24 | open open | |
BIOS type select 27512 | JP23 JP24 | closed closed | |
» | Parity check enabled | JP25 | closed |
Parity check disabled | JP25 | open | |
» | Monitor type select color | JP31 | closed |
Monitor type select monochrome | JP31 | open | |
» | Power good signal detect from board | JP55 | pins 1 & 2 closed |
Power good signal detect from power supply | JP55 | pins 2 & 3 closed | |
» | CMOS memory normal operation | JP58 | pins 1 & 2 closed |
CMOS memory clear | JP58 | pins 3 & 4 closed | |
» | Factory configured - do not alter | JP59 | N/A |
DRAM CONFIGURATION | ||||||
Size | Bank 0 | Parity (P-0) | Bank 1 | Parity (P-1) | Bank 2 | Bank 3 |
512KB | (4) 44256 | (2) 41256 | NONE | NONE | NONE | NONE |
1MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | NONE | NONE |
1.5MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | (2) 256K x 9 | NONE |
2MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | (2) 256K x 9 | (2) 256K x 9 |
2MB | NONE | NONE | NONE | NONE | (2) 1M x 9 | NONE |
3MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | (2) 1M x 9 | NONE |
4MB | NONE | NONE | NONE | NONE | (2) 1M x 9 | (2) 1M x 9 |