PTM-1260B Motherboard Settings and Configuration
DTK COMPUTERS, INC.
PTM-1260B
Processor | 80286 |
Processor Speed | 12MHz |
Chip Set | VLSI |
Max. Onboard DRAM | 1MB |
Cache | None |
BIOS | DTK |
Dimensions | 330mm x 218mm |
I/O Options | Floppy drive interface, hard drive interface, parallel port, serial ports (2), video port |
NPU Options | 80287 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Hard drive 1 data cable connector | CN1 | Parallel port | CN9 |
Hard drive 1 data cable connector | CN2 | Power LED & keylock | JP1 |
Hard drive interface | CN3 | Speaker | JP3 |
Floppy drive interface | CN4 | Turbo LED | JP4 |
Serial port 2 | CN5 | Turbo switch | JP5 |
Video port | CN7 | IDE interface LED | JP12 |
Serial port 1 | CN8 | External battery | JP20 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | JP2 | N/A |
» | Zero wait state enabled | JP8 | Closed |
One wait state enabled | JP8 | Open | |
» | Primary hard drive address is 1F0h - 1F7h | JP13 | pins 2 & 3 closed |
Secondary hard drive address is 170h - 177h | JP13 | pins 1 & 2 closed | |
» | Primary floppy drive address is 3F0h - 3F7h | JP13 | pins 5 & 6 closed |
Secondary floppy drive address is 370h - 37Fh | JP13 | pins 4 & 5 closed | |
» | BIOS type select 32KB | JP14 | Open |
BIOS type select 64KB | JP14 | Closed | |
» | Factory configured - do not alter | JP15 | N/A |
» | Monochrome display primary | JP22 | Open |
CGA display primary | JP22 | Closed | |
FLOPPY DRIVE CONFIGURATION | ||||
Drive | JP16 | JP17 | JP18 | |
| » | Enabled | Closed | Closed | Closed |
Disabled | Open | Open | Open | |
PRIMARY SERIAL PORT CONFIGURATION | ||
Port 1 (CN8) | JP24 | JP26 |
COM1 | Closed | Closed |
COM3 | Open | Open |
Disabled | Closed | Open |
Disabled | Open | Closed |
SECONDARY SERIAL PORT CONFIGURATION | ||
Port 2 (CN5) | JP25 | JP27 |
COM2 | Closed | Closed |
COM4 | Open | Open |
Disabled | Open | Closed |
Disabled | Closed | Open |
PARALLEL PORT CONFIGURATION | |||
LPT | JP19 | JP23 | JP28 |
LPT1 | pins 1 & 2 closed | Closed | Closed |
LPT2 | pins 2 & 3 closed | Open | Open |
Disabled | N/A | Open | Closed |
Disabled | N/A | Closed | Open |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Parity 0 | Bank 1 | Parity 1 |
512KB | (4) 44256 | (2) 41256 | NONE | NONE |
640KB | (4) 44256 | (2) 41256 | (4) 4464 | (2) 4164 |
1MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 |
Note:The exact locations of bank 0 and bank 1 are unknown. | ||||
DRAM JUMPER CONFIGURATION | ||
Size | JP9 | JP10 |
512KB | Closed | Closed |
640KB | Open | Closed |
1MB | Open | Open |
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