Asus P4B - Manual (Page 42)

2-20 Chapter 2: Hardware information
Figure 2-25 Audio CODEC Settings
4. Audio controller (AUD_EN1) (on audio models only)
This jumper allows you to enable or disable the audio CODEC on the
motherboard. Disable the audio CODEC if you desire to install a PCI
audio card on one of the PCI slots or on the CNR slot. The default
setting is Enabled.
5. Keyboard power (KBPWR)
This jumper allows you to enable or disable the keyboard wake-up
feature. Set this jumper to pins 1-2 (+5VSB) if you wish to wake up the
computer when you press a key on the keyboard (the default is the
Space Bar). This feature requires an ATX power supply that can supply
at least 1A on the +5VSB lead, and a corresponding setting in the
BIOS (see section 4.5.1 Power Up Control). The default is setting is on
pins 1-2 (+5VSB).
Figure 2-26 Keyboard Power Settings
P4B
®
P4B Audio Codec Setting
AUD_EN1
Enable
(Default)
1 2
Disable
2 3
P4B
®
P4B Keyboard Power Setting
KBPWR
1 2
+5VSB
2 3
+5V
(Default)