KT TECHNOLOGY PTE LTD.
KT333OP3C-WB/BI PQFP 386DX MAINBOARD
| Processor | 80386DX | 
| Processor Speed | 25/33/40MHz | 
| Chip Set | VLSI | 
| Max. Onboard DRAM | 32MB | 
| Cache | 32/64/128/256KB | 
| BIOS | AMI | 
| Dimensions | 330mm x 218mm | 
| I/O Options | None | 
| NPU Options | 80387DX/3167 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| External battery | J17 | Turbo LED & turbo switch | J22 | 
| Power LED & keylock | J20 | Reset switch | J23 | 
| Speaker | J21 | ||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper | Position | |
| » | Normal operation | W1 | Open | 
| Manufacturer testing | W1 | Closed | |
| » | Monitor type select color | W2 | pins 1 & 2 closed | 
| Monitor type select monochrome | W2 | pins 2 & 3 closed | |
| » | Bus clock speed select 4 | W3 | pins 1 & 2 closed | 
| Bus clock speed select 3 | W3 | pins 2 & 3 closed | |
| » | Factory configured - do not alter | W4 | N/A | 
| » | CMOS memory normal operation | W5 | pins 1 & 2 closed | 
| CMOS memory clear | W5 | pins 2 & 3 closed | |
| » | NPU input clock select external oscillation for 80387 | W6 | pins 1 & 2 closed | 
| NPU input clock select internal oscillation for 80386 | W6 | pins 2 & 3 closed | |
| 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 | 
| 5MB | (4) 256K x 9 | (4) 1M x 9 | 
| 8MB | (4) 1M x 9 | (4) 1M x 9 | 
| 16MB | (4) 4M x 9 | NONE | 
| 20MB | (4) 1M x 9 | (4) 4M x 9 | 
| 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 | (3) 4K x 4 | 
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (3) 4K x 4 | 
| 128KB | (4) 32K x 8 | NONE | (3) 16K x 4 | 
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (3) 16K x 4 | 
| Note: The location of Bank 0 and Bank 1 are unidentified. The location of the Tag is unidentified. | |||
| CACHE JUMPER CONFIGURATION | ||||||
| Size | W7 | W8 | W9 | W10 | W11 | W12 | 
| 32KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 
| 64KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 
| 128KB | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 
| 256KB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |