IBM 2274 - Manual (Page 143)

Parts/Test Point Locations 109
System Board Jumpers and
Connectors
NOTE: The blackened pin of a jumper represents
pin 1.
System Board Connector Functions
System Board Jumper Setting
Jumper/Settings Function
JP14
1-2
2-3
CMOS Setup
*Normal
Clear CMOS
Connector Function Connect to...
BT1 System battery
connector System battery
DIMM 1
DIMM 2
DIMM 3
System memory
module connectors Memory
FN1/FN2 Fan connector Processor fan
PCI 1
PCI 2
PCI 3
PCI slots Adapter cards
CN2 PS/2 keyboard and
mouse connectors Keyboard and
mouse
CN3 USB connectors USB device
CN4 Parallel and serial
connectors Printer, parallel and
serial devices