Asus P5A-B - Manual (Page 29)

ASUS P5A-B User’s Manual 29
III. INSTALLATION
Connectors
III. INST
ALLA
TION
9. ATX Power Supply Connector (ATX, 20-pin block)
This connector connects to an ATX power supply. The plug from the power sup-
ply will only insert in one orientation because of the different hole sizes. Find the
proper orientation and push down firmly making sure that the pins are aligned.
IMPORTANT: Make sure that your ATX power supply can supply at least
10mAmp on the 5-volt standby lead (+5VSB). You may experience difficulty in
powering on your system if your power supply cannot support the load. For
Wake on LAN support, your ATX power supply must supply at least 720mA.
P5A-B ATX Power Connector
+3.3 Volts
-12.0 Volts
Ground
Power Supply On
Ground
Ground
Ground
-5.0 Volts
+5.0 Volts
+5.0 Volts
Power Good
+12.0 Volts
+3.3 Volts
+3.3 Volts
Ground
+5.0 Volts
Ground
+5.0 Volts
Ground
+5V Standby
R
10. AT Power Supply Connector (PS/2, 12-pin block)
This connector connects to a standard 5 Volt power supply. To connect the leads
from the power supply, ensure first that the power supply is not plugged. Most
power supplies provide two plugs (P8 and P9), each containing six wires, two of
which are black. Orient the connectors so that the black wires are together.
P5A-B AT Power Connector
Power Plugs from
Power Supply Power Connector
on Motherboard
P8
P9
ORG
RED
YLW
BLU
BLK
BLK
BLK
BLK
WHT
RED
RED
RED
R
+5V
PG
+12V
GND
+5V
-12V
-5V
At a slight angle, align the plastic guide pins on the lead to their receptacles on
the connector. Once aligned, press the lead onto the connector until the lead
locks into place.