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 |