Asus AP120-E1 - Manual (Page 54)

2-28 Chapter 2: Hardware information
11. Digital audio connector (4-1 pin SPDIF_OUT)
In addition to the S/PDIF Out port on the rear panel, an S/PDIF Out
connector is available for an S/PDIF audio module. Connect one end
of the S/PDIF audio cable this connector and the other end to the
S/PDIF module.
The S/PDIF module is purchased separately.
12. ATX power connectors (20-pin ATXPWR1, 4-pin ATX12V1)
These connectors connect to an ATX 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 20-pin ATXPWR1 connector, connect the 4-pin ATX
+12V power plug to provide sufficient power to the CPU.
Make sure that your ATX 12V 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 230W, or 300W for a fully configured system. The
system may become unstable and may experience difficulty powering up if the
power supply is inadequate.
P4P800S-E
®
P4P800S-E ATX Power Connector
ATXPWR1 ATX12V1
+3.3VDC
-12.0VDC
COM
PS_ON#
COM
COM
COM
-5.0VDC
+5.0VDC
+5.0VDC
PWR_OK
+12.0VDC
+3.3VDC
+3.3VDC
COM
+5.0VDC
COM
+5.0VDC
COM
+5VSB
+12V DC GND
+12V DC GND
P4P800S-E
®
P4P800S-E Digital Audio Connector
+5V SPDIFOUT GND
SPDIF_OUT