UNIDENTIFIED
ACE - 386SX - AR1
Processor | 80386SX (exact location unknown) |
Processor Speed | 16/20/25/33MHz |
Chip Set | Acer |
Max. Onboard DRAM | 16MB |
Cache | None |
BIOS | AMI |
Dimensions | 220mm x 220mm |
I/O Options | None |
NPU Options | 80387SX (exact location unknown) |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J4 | Turbo switch | J8 pins 1 - 3 |
Reset switch | J6 | Turbo LED | J8 pins 4 - 5 |
Speaker | J7 | Power LED & keylock | J9 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | ADS delay disabled | J5 | pins 2 & 3 closed |
ADS delay enabled | J5 | pins 1 & 2 closed | |
» | NPU synchronous with CPU | JP2 | pins 1 & 2 closed |
NPU asynchronous with CPU | JP2 | pins 2 & 3 closed | |
» | Factory configured - do not alter | JP3 | N/A |
» | Monitor type select monochrome | JP4 | pins 1 & 2 closed |
Monitor type select color | JP4 | pins 2 & 3 closed | |
» | Parity check disabled | JP6 | Open |
Parity check enabled | JP6 | Closed |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
512KB | (1) 256K x 9 | (1) 256K x 9 | NONE | NONE |
1MB | (1) 256K x 9 | (1) 256K x 9 | (1) 256K x 9 | (1) 256K x 9 |
2MB | (1) 1M x 9 | (1) 1M x 9 | NONE | NONE |
4MB | (1) 1M x 9 | (1) 1M x 9 | (1) 1M x 9 | (1) 1M x 9 |
8MB | (1) 4M x 9 | (1) 4M x 9 | NONE | NONE |
16MB | (1) 4M x 9 | (1) 4M x 9 | (1) 4M x 9 | (1) 4M x 9 |
CPU SPEED CONFIGURATION | ||
Speed | JP1 | JP5 |
16MHz | pins 1 & 2 closed | pins 1 & 2 closed |
20MHz | pins 2 & 3 closed | pins 1 & 2 closed |
25MHz | pins 1 & 2 closed | pins 2 & 3 closed |
33MHz | pins 2 & 3 closed | pins 2 & 3 closed |