ACER, INC.
KMC-40A 486DLC/386DX
Processor | 80386DX/CX486DLC |
Processor Speed | 33/40MHz |
Chip Set | ALI |
Max. Onboard DRAM | 32MB |
SRAM Cache | 32/64/128/256KB |
BIOS | AMI |
Dimensions | 240mm x 220mm |
I/O Options | None |
NPU Options | 80387/CX83D87/3167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J4 | Turbo switch | J7 pins 1 & 2 |
Reset switch | J5 | Turbo LED | J7 pins 4 & 5 |
Speaker | J6 | Power LED & keylock | J8 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select color | JP1 | pins 2 & 3 closed |
Monitor type select monochrome | JP1 | pins 1 & 2 closed | |
» | Factory configured - do not alter | JP2 | pins 2 & 3 closed |
» | RTC type select DS1287 | JP3 | pins 1 & 2 closed |
RTC type select 146818 | JP3 | pins 1 & 2 closed | |
» | Factory configured - do not alter | JP7 | pins 1 & 2 closed |
» | Factory configured - do not alter | JP8 | pins 2 & 3 closed |
Note:The locations of JP7 and JP8 are unknown. |
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 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
32MB | (4) 4M x 9 | (4) 4M x 9 |
SRAM JUMPER CONFIGURATION | ||
Size | JP5 | JP6 |
32KB | open | pins 2 & 3 closed |
64KB | open | pins 1 & 2 closed |
128KB | pins 1 & 2, 3 & 4 and 5 & 6 closed | pins 2 & 3 closed |
256KB | pins 1 & 2, 3 & 4 and 5 & 6 closed | pins 1 & 2 closed |
SRAM CONFIGURATION | |||
Size | Cache SRAM | Location | TAG |
32KB | (4) 8K x 8 | Bank 0 | (1) 8K x 8 |
64KB | (8) 8K x 8 | Banks 0 & 1 | (1) 8K x 8 |
128KB | (4) 32K x 8 | Bank 0 | (1) 32K x 8 |
256KB | (8) 32K x 8 | Banks 0 & 1 | (1) 32K x 8 |