PEAKTRON COMPUTER, INC.
PX-3000 TURBO XT
| Processor | 8088 | 
| Processor Speed | 12MHz | 
| Chip Set | Peaktron | 
| Max. Onboard DRAM | 640KB | 
| Cache | None | 
| BIOS | Peaktron | 
| Dimensions | 218mm x 187mm | 
| I/O Options | None | 
| NPU Options | 8087 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Reset switch | J1 | Turbo switch | J14 | 
| Keylock | J2 | Turbo LED | J15 | 
| Speaker | J13 | Power LED | J16 | 
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper/Switch | Position | |
| » | Parity check enabled | P1 | Open | 
| Parity check disabled | P1 | Closed | |
| » | CPU speed select switchable at turbo turbo switch | P2 | pins 1 & 2 closed | 
| CPU speed select switchable at keyboard | P2 | pins 2 & 3 closed | |
| » | Factory configured - do not alter | SW1/1 | N/A | 
| » | Factory configured - do not alter | SW1/2 | N/A | 
| » | Factory configured - do not alter | SW1/3 | N/A | 
| » | Factory configured - do not alter | SW1/4 | N/A | 
| DRAM CONFIGURATION | |||||
| Size | U28 - U29 | U15 - U18 | U19 - U22 | U28 - 31 | U34 | 
| 256KB | (2) 44256 | NONE | NONE | NONE | NONE | 
| 256KB | NONE | (4) 41256 | (4) 41256 | NONE | NONE | 
| 512KB | NONE | NONE | NONE | (4) 44256 | NONE | 
| 640KB | NONE | NONE | NONE | (4) 44256 | NONE | 
| DRAM PARITY CONFIGURATION | |||
| Size | U23 | U43 | U48 | 
| 256KB | (1) 41256 | NONE | NONE | 
| 256KB | (1) 41256 | NONE | NONE | 
| 512KB | (1) 41256 | (1) 41256 | NONE | 
| 640KB | (1) 41256 | (1) 41256 | NONE | 
| Note:One (1) 411000 can be used in location U23 for parity with all memory sizes. | |||
| DRAM PARITY JUMPER CONFIGURATION | ||
| Size | P3 | P4 | 
| 256KB | pins 2 & 3 closed | pins 2 & 3 closed | 
| 256KB | pins 2 & 3 closed | pins 2 & 3 closed | 
| 512KB | pins 2 & 3 closed | pins 2 & 3 closed | 
| 640KB | pins 1 & 2 closed | pins 1 & 2 closed | 
| VIDEO CONFIGURATION | ||
| Size | SW1/5 | SW1/6 | 
| None | On | On | 
| Color (40 x 20) | Off | On | 
| Color (80 x 25) | On | Off | 
| Monochrome | Off | Off | 
| FLOPPY DRIVE CONFIGURATION | ||
| Drives installed | SW1/7 | SW1/8 | 
| 1 | On | On | 
| 2 | Off | On | 
| 3 | On | Off | 
| 4 | Off | Off |