INTERCOMP, INC.
386SX 20/25/33
| Processor | 80386SX | 
| Processor Speed | 20/25/33MHz | 
| Chip Set | Intercomp | 
| Max. Onboard DRAM | 16MB | 
| SRAM Cache | 16/32/64KB | 
| BIOS | MR | 
| Dimensions | 330mm x 218mm | 
| I/O Options | None | 
| NPU Options | 80387SX | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| External battery | JP1 | Turbo LED | JP16 | 
| Diagnostic LED | JP13 | Speaker | JP17 | 
| Reset switch | JP14 | Power LED & keylock | JP18 | 
| Turbo switch | JP15 | ||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper | Position | |
| » | Battery select internal | JP10 | pins 2 & 3 closed | 
| Battery select external | JP10 | pins 1 & 2 closed | |
| » | CMOS memory normal operation | JP11 | pins 1 & 2 closed | 
| CMOS memory clear | JP11 | pins 2 & 3 closed | |
| DRAM CONFIGURATION | ||||
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | 
| 1MB | (2) 256K x 9 | (2) 256K x 9 | NONE | 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 | 
| 3MB | (2) 256K x 9 | (2) 256K x 9 | (2) 1M x 9 | NONE | 
| 4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE | 
| 5MB | (2) 256K x 9 | (2) 256K x 9 | (2) 1M x 9 | (2) 1M x 9 | 
| 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 | 
| 9MB | (2) 256K x 9 | (2) 256K x 9 | (2) 4M x 9 | NONE | 
| 10MB | (2) 1M x 9 | (2) 4M x 9 | NONE | NONE | 
| 12MB | (2) 1M x 9 | (2) 1M x 9 | (2) 4M x 9 | NONE | 
| 16MB | (2) 4M x 9 | (2) 4M x 9 | NONE | NONE | 
| CACHE CONFIGURATION | ||
| Size | Bank 0 (U17 & U19) | Bank 1 (U16 & U18) | 
| 16KB | (2) 8K x 8 | NONE | 
| 32KB | (2) 8K x 8 | (2) 8K x 8 | 
| 64KB | (2) 32K x 8 | NONE | 
| CACHE JUMPER CONFIGURATION | ||||||
| Size | JP4 | JP5 | JP6 | JP7 | JP8 | JP9 | 
| 16KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | Open | Open | 
| 32KB | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 | Closed | Open | 
| 64KB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | Open | Closed | 
| Note:Pins designated should be in the closed position. | ||||||