Hardware Reference
In-Depth Information
Table 18.4
shows typical AT/LPX power supply connections.
Table 18.4 AT/LPX Power Supply Connectors (Wire End View)
Tip
Although older PC/XT power supplies do not have a connection at connector P8 pin 2, you
still can use them on AT-type motherboards, or vice versa. The presence or absence of the
+5V on that pin has little or no effect on system operation because the remaining +5V wires
can usually carry the load.
Note that all the AT/LPX-type power supplies use the same connectors and pin configur-
ations; to my knowledge there were never nonstandard variations.
ATX and ATX12V Motherboard Power Connectors
PowersuppliesconformingtotheoriginalATXandATX12V1.xformfactorstandardsor
variations thereof use the following three motherboard power connectors:
