Asus PCH-DL - Manual (Page 45)

ASUS PCH-DL motherboard 2-27
7. SSI power connectors (24-pin, 8-pin)
These connectors connect to an SSI-type 12V power supply. The plugs
from the power supply are designed to fit these connectors in only one
orientation. Find the proper orientation and push down firmly until the
connectors completely fit.
In addition to the 24-pin power connector, this motherboard requires
that you connect the 8-pin +12V power plug to provide sufficient power
to the CPU.
1. Do not forget to connect the 8-pin +12V power plug. Otherwise, the
system does not boot up.
2. Make sure that your power supply can provide 8A on the +12V
lead and at least 1A on the +5-volt standby lead (+5VSB). The
minimum recommended wattage is 300W. The system may
become unstable or may not boot up if the power is inadequate.
PCH-DL
PCH-DL ATX Power Connectors
For Power Supply
with 20-pin
Power Connector
24-pin Power Connector
GND
12V
GND
12V
GND
12V
GND
12V
8-pin
+3 Volts
+3 Volts
Ground
+5 Volts
+5 Volts
Ground
Ground
Power OK
+5V Standby
+12 Volts
-5 Volts
+5 Volts
+3 Volts
-12 Volts
Ground
Ground
Ground
PSON#
Ground
+5 Volts
+12 Volts
+3 Volts +5 Volts
Ground