386-40 Motherboard Settings and Configuration
GVC TECHNOLOGIES, INC.
386-40
Processor | 80386DX |
Processor Speed | 40MHz |
Chip Set | SIS |
Max. Onboard DRAM | 64MB |
Cache | 32/64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 80387/3167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J1 | Turbo switch | J24 |
Power LED & keylock | J21 | Speaker | J25 |
Turbo LED | J23 | Reset switch | J22 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
| » | Factory configured - do not alter | J2 | pins 2 & 3 closed |
| » | Monitor type select monochrome | J3 | Open |
Monitor type select color | J3 | Closed | |
| » | Factory configured - do not alter | J15 | pins 1 & 2 closed |
| » | NPU mode select synchronous with CPU | J16 | pins 1 & 2 closed |
NPU mode select synchronous with OSC2/2 | J16 | pins 2 & 3 closed | |
| » | Fast gate A20 select normal | J19 | pins 1 & 2 closed |
Fast gate A20 select fast | J19 | pins 2 & 3 closed | |
Note:The locations of J2 & J15 are unidentified. | |||
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (4) 256K x 9 | NONE | NONE | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 | NONE | NONE |
4MB | (4) 1M x 9 | NONE | NONE | NONE |
5MB | (4) 256K x 9 | (4) 1M x 9 | NONE | NONE |
6MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
9MB | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
10MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 |
12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE | NONE | NONE |
20MB | (4) 1M x 9 | (4) 4M x 9 | NONE | NONE |
24MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | TAG (U46) | TAG (U46) |
32KB | (4) 8K x 8 | NONE | (1) 8K x 8 | NONE |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | NONE | (1) 32K x 8 | NONE |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 | (1) 32K x 8 |
Note: Bank 0 = U28, U30, U32 & U34. | ||||
CACHE JUMPER CONFIGURATION | ||||
Size | J10 | J18 | J26 | J27 |
32KB | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
64KB | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed |
128KB | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed |
256KB | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |
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