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ASUS P8H77-M PRO
2-27
Chapter 2
11. ATX power connectors (24-pin EATXPWR; 8-pin EATX12V)
These connectors are for ATX power supply plugs. The power supply plugs are
designed to t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.
P8H77-M PRO
P8H77-M PRO EATX power connectors
EATXPWR
PIN 1
PIN 1
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
GND
GND
PSON#
GND
-12 Volts
+3 Volts
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
+5 Volts
GND
+5 Volts
GND
+3 Volts
+3 Volts
EATX12V
+12V DC
+12V DC
+12V DC
+12V DC
GND
GND
GND
GND
• For a fully configured system, we recommend that you use a power supply unit
(PSU) that complies with ATX 12 V Specication 2.0 (or later version) and provides a
minimum power of 350 W.
•
DO NOT forget to connect the 4-pin / 8-pin ATX +12V power plug. Otherwise, the
system will not boot up.
10. Serial port connectors (10-1 pin COM1)
The connector is for a serial (COM) port. Connect the serial port module cable to the
connector, then install the module to a slot opening at the back of the system chassis.
The serial port bracket (COM1) is purchased separately.
P8H77-M PRO
P8H77-M PRO Serial port (COM1) connector
PIN 1
COM1
D
C
D
T
X
D
G
N
D
R
T
S
R
I
R
X
D
D
T
R
D
S
R
C
T
S