Filter
Top Products
Technical Reference
43
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 CD-ROM and front panel audio)
Fans [three]
Power
Add-in boards (PCI and AGP)
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 power/sleep/message-waiting LED
Front panel (power/sleep/message-waiting LED, power switch, hard drive activity LED,
reset switch, and auxiliary front panel power LED)
✏
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.