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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
Maximum Video Memory None
Cache None
BIOS Unidentified
Dimensions Unidentified
I/O Options Expansion slot
NPU Options 80287 (exact location unidentified)
640KB (on mainboard), (16MB on external memory card)
CONNECTIONS
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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
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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
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