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Inside Your Computer 3-7
Table 3-1. System Board Connectors and Sockets
Connector or Socket Description
BT9M1 Battery socket
CDROM CD-ROM drive audio cable connector
FLOPPY Diskette-drive interface connector
GAME/AUDIO MIDI/game port connector
HD LED SCSI hard-disk drive access indicator cable connector
ISAn
*
ISA expansion-card connectors
J6J1, J6J2, J7J1, J7J2
SIMM sockets
J7C1, J7D1 Wave-table upgrade connectors
J7M1 3.3-V power input connector
J8L1 Microprocessor fan connector
J9A1 Not used
J9D1 Control panel connector
KEYBRD Keyboard connector
LINE IN Line-in jack
LINE OUT Line-out jack
MIC IN Microphone jack
MOUSE Mouse connector
PARALLEL Parallel port connector; sometimes referred to as
LPT1
PCIn
*
PCI expansion-card connectors
POWER Power input connector
PRI IDE Primary EIDE channel connector
PWR Not used
* Connectors ISA1 and PCI4 share a single card-slot opening, so only one of the two connectors can be used.
NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the
online System User’s Guide.