Technical Reference
2.8 Connectors
CAUTION
Only the following connectors have overcurrent protection: back panel USB, front panel USB, and PS/2.
The other internal connectors are not overcurrent protected and should connect only to devices inside the computer’s chassis, such as fans and internal peripherals. Do not use these connectors to power devices external to the computer’s chassis. A fault in the load presented by the external devices could cause damage to the computer, the power cable, and the external devices themselves.
This section describes the board’s connectors. The connectors can be divided into these groups:
•Back panel I/O connectors (see page 44)
PS/2 keyboard and mouse
USB (four ports)
Parallel port
Serial port A
LAN
Audio (line out, line in, and mic in)
•Internal I/O connectors (see page 45)
Audio (ATAPI
Fans [three]
Power
Parallel ATA IDE
Diskette drive
Chassis intrusion
•External I/O connectors (see page 52)
Front panel USB (two connector for four ports)
Auxiliary front panel
Front panel
✏NOTE
When installing the board in a microATX chassis, make sure that peripheral devices are installed at least 1.5 inches above the main power connector, the diskette drive connector, the Parallel ATA IDE connectors, and the DIMM sockets.
43