A-8 IBM Personal Computer User Guide
Connector functions
The following table includes the specific functions of the connectors. Refer to the
section “Identifying system board parts” on page 7-2 for an illustration of the
connector locations.
Table 7: Connector functions
Connector Function
BATT Battery socket
FDD1 Floppy connector
PCI Slot1 First PCI adapter card connector
PCI Slot2 Second PCI adapter card connector
PCI Slot3 Third PCI adapter card connector
JBAT Clear CMOS jumper
JFP1 HDD LED, Power LED, speaker, Power Switch and Reset Switch
IDE 1 Primary IDE
IDE 2 Secondary IDE
JWR1 ATX Power Connector
COMA Serial Port connector 1
COMB Serial Port connector 2
LPT1 Parallel Port Connector
JKBMS1 Keyboard/Mouse Connector
J5 CD-In Connector
J6 Aux Line Connector
J7 Modem-In Connector
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