DTK COMPUTER, INC.
PII-129 640K RAM CARD
Card Type | Memory card |
Chip Set | Unidentified |
Maximum Onboard Memory | 640KB RAM (type unidentified) |
I/O Options | Unidentified |
Data Bus | Unidentified |
V2641
USER CONFIGURABLE SETTINGS | ||
Function | Label | Position |
Parity check enabled | JP1 | Pins 2 & 3 closed |
Parity check disabled | JP1 | Pins 1 & 2 closed |
DRAM CONFIGURATION | |||
Size | Bank 0 | Bank 1 | Bank 2 |
128KB | 4164 | 4164 | None |
128KB | 41256 | None | None |
384KB | 41256 | 4164 | None |
384KB | 41256 | 41256 | None |
512KB | 41256 | 41256 | 4164 |
576KB | 41256 | 41256 | 41256 |
576KB | 41256 | 41256 | 41256 |
640KB | 41256 | 41256 | 41256 |
DRAM SWITCH CONFIGURATION | |||
Size | SW1/4 | SW1/5 | SW1/6 |
128KB | Off | Off | Off |
128KB | On | Off | Off |
384KB | Off | On | Off |
384KB | On | On | Off |
512KB | Off | Off | On |
576KB | On | Off | On |
576KB | Off | On | On |
640KB | On | On | On |
MISCELLANEOUS TECHNICAL NOTES |
Note: The diagram is unavailable and the purpose of SW1/1, SW1/2 and SW1/3 |