NCR CORPORATION
MODEL 3278-XXXX PC710/3392
Processor |
80286 (exact location unidentified) |
Processor Speed |
6/10MHz |
Chip Set |
Unidentified |
Video Chip Set |
None |
Maximum Onboard Memory |
640KB (on mainboard), (16MB on external memory card) |
Maximum Video Memory |
None |
Cache |
None |
BIOS |
Unidentified |
Dimensions |
Unidentified |
I/O Options |
Expansion slot |
NPU Options |
80287 (exact location unidentified) |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
External battery |
J2 |
Auxiliary keyboard connector |
J5 |
Keylock |
J3 |
Expansion slot |
JM1 |
Volume control |
J4 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
» |
BIOS type select 32KB |
J1 |
Pins 3 & 6, 4 & 5 closed |
BIOS type select 16KB |
J1 |
Pins 1 & 8, 2 & 7 closed | |
» |
Wait state select 1 wait state |
JP1 |
Pins 1 & 2 closed |
Wait state select 0 wait states |
JP1 |
Pins 2 & 3 closed | |
» |
10MHz CPU speed enabled |
JP2 |
Pins 1 & 2 closed |
10MHz CPU speed disabled |
JP2 |
Pins 2 & 3 closed | |
» |
Memory expansion card installed |
JP5 |
Pins 1 & 2 closed |
Memory expansion card not installed |
JP5 |
Pins 2 & 3 closed | |
Monitor type select graphics display |
S1 |
Left | |
Monitor type select alphanumeric display |
S1 |
Right | |
» |
Power on speed select 10MHz |
S2 |
Pins 1 & 2 closed |
Power on speed select 6MHz |
S2 |
Pins 2 & 3 closed |
DRAM CONFIGURATION |
Note: The location of the memory is unidentified. Board accepts 256KB or 512KB memory. |
DRAM JUMPER CONFIGURATION | |
Size |
JP3 |
256KB |
Pins 2 & 3 closed |
512KB |
Pins 1 & 2 closed |
DRAM JUMPER CONFIGURATION | |
Setting |
JP4 |
All onboard memory enabled |
Pins 1 & 2 closed |
All onboard memory disabled |
Pins 2 & 3 closed |