UNIDENTIFIED
404 386SX
Processor | 80386SX |
Processor Speed | 16/20/25MHz |
Chip Set | ALI |
Video Chip Set | None |
Maximum Onboard Memory | 8MB |
Maximum Video Memory | None |
Cache | None |
BIOS | AMI |
Dimensions | 254mm x 218mm |
I/O Options | None |
NPU Options | 80387SX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J1 | Power LED & keylock | J20 |
Reset switch | J18 | Turbo LED | J21 pins 1 & 2 |
Speaker | J19 | Turbo switch | J21 pins 4 & 5 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
Fast A20 gate signal from chip set | J4 | Pins 1 & 2 closed | |
Fast A20 gate signal from keyboard controller | J4 | Pins 2 & 3 closed | |
Monitor type select color | JP1 | Pins 2 & 3 closed | |
Monitor type select monochrome | JP1 | Pins 1 & 2 closed |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
512KB | (2) 256K x 9 | None | None | None |
1MB | (2) 256K x 9 | (2) 256K x 9 | None | None |
1.5MB | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 | None |
2MB | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 |
2MB | (2) 1M x 9 | None | None | None |
4MB | (2) 1M x 9 | (2) 1M x 9 | None | None |
6MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | None |
8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
CPU SPEED SELECTION | ||
Speed | J3 | J5 |
16MHz | Pins 1 & 2 closed | Pins 1 & 2 closed |
20MHz | Pins 1 & 2 closed | Pins 2 & 3 closed |
25MHz | Pins 2 & 3 closed | Pins 2 & 3 closed |