HI-PERFORMANCE SYSTEM Motherboard Settings and Configuration
PC BRAND
HI-PERFORMANCE SYSTEM
Processor | 80386DX/80486SX/80486DX (depends on CPU card installed) |
Processor Speed | 20/33MHz |
Chip Set | Unidentified |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256KB (on external CPU card) |
BIOS | Unidentified |
Dimensions | 330mm x 218mm |
I/O Options | Parallel port, serial ports (2), floppy drive interface, IDE interface, CPU expansion slot, riser slot |
NPU Options | 80387DX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Serial port 2 | J2 | External battery | J10 |
Serial port 1 | J3 | Speaker | J13 |
Parallel port | J4 | Power LED & keylock | J23 |
Auxiliary speaker | J5 | Riser Card | SL1 |
IDE interface | J8 | CPU expansion slot | SL2 |
Floppy drive interface | J9 | Reset switch | SW1 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | J11 | N/A |
» | On board RAM 256KB to 640KB enabled | JP1 | pins 1 & 2 open |
On board RAM 256KB to 640KB disabled | JP1 | pins 1 & 2 closed | |
» | On board RAM 512KB to 640KB enabled | JP1 | pins 3 & 4 open |
On board RAM 512KB to 640KB disabled | JP1 | pins 3 & 4 closed | |
» | Security lock disabled | JP1 | pins 5 & 6 closed |
Security lock enabled | JP1 | pins 5 & 6 open | |
» | Floppy drive interface enabled | JP2 | pins 1 & 2 closed |
Floppy drive interface disabled | JP2 | pins 2 & 3 closed | |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
4MB | (4) 1M x 9 | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 |
20MB | (4) 1M x 9 | (4) 4M x 9 |
16MB | (4) 4M x 9 | NONE |
20MB | (4) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
32KB | (4) 8K x 8 | NONE | (1) 8K x 8 |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | ||
Size | JP2 | JP3 |
32KB | pins 1 & 2 closed | pins 1 & 2 closed |
64KB | pins 1 & 2 closed | pins 1 & 2 closed |
128KB | pins 2 & 3 closed | pins 2 & 3 closed |
256KB | pins 1 & 2 closed | pins 2 & 3 closed |
Note: The location of jumpers JP2 & JP3 are unidentified. | ||
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
32KB | (4) 8K x 8 | NONE | (1) 8K x 8 |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | ||
Size | JP2 | JP3 |
32KB | pins 1 & 2 closed | pins 1 & 2 closed |
64KB | pins 1 & 2 closed | pins 1 & 2 closed |
128KB | pins 2 & 3 closed | pins 2 & 3 closed |
256KB | pins 1 & 2 closed | pins 2 & 3 closed |
Note: The location of jumpers JP2 & JP3 are unidentified. | ||
MISCELLANEOUS TECHNICAL NOTE |
Note: The location of pin 1 is unidentified. |
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