User guide

• We recommend that you connect a high-denition front panel audio module to this
connector to avail of the motherboard high-denition audio capability.
• By default, this connector is set to
[HD Audio]. If you want to connect a High Denition
front panel audio module to this connector, set the Front Panel Select item in the BIOS
to [HD Audio]. See section “2.4.3 Chipset” for details.
10. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports
either High Denition Audio or AC`97 audio standard. Connect one end of the front
panel audio I/O module cable to this connector.
M4A78 PLUS
M4A78 PLUS Analog front panel connector
AAFP
PIN 1
GND PRESENCE# SENSE1_RETUR SENSE2_RETUR
PORT1 L
PORT1 R PORT2 R
SENSE_SEND
PORT1 L
HD-audio-compliant
pin definition
PIN 1
AGND NC NC NC
MIC2
MICPWR
Line out_R
NC
Line out_L
Legacy AC’97
compliant definition
Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside the
system may damage the motherboard components. These are not jumpers! Do not place
jumper caps on the fan connectors!
Only the CPU fan supports the ASUS Q-FAN feature.
CPU_FAN
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
M4A78 PLUS
M4A78 PLUS fan connectors
GND
+12V
Rotation
PWR_FAN
GND
+12V
Rotation
CHA_FAN
11. CPU, Chassis, and PowerFan connectors (4 pin CPU_FAN, 3-pin CHA_FAN, and
3-pin PWR_FAN)
The fan connectors support cooling fans of 350mA~740mA (8.88W max.) or a total of
1A~2.22A (26.64W max.) at +12V. Connect the fan cables to the fan connectors on the
motherboard, ensuring that the black wire of each cable matches the ground pin of the
connector.
Chapter 1: Product introduction 1-29