System board jumpers and connectors – IBM 2274 User 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