Asus P4B-LS Motherboard DIY Troubleshooting Guide - Page 42
Audio CODEC Settings, on audio models only, Keyboard Power Settings
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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 Enable. ® P4B-LS AUD_EN1 12 Enable (Default) 23 Disable P4B-LS Audio Codec Setting Figure 2-25 Audio CODEC Settings 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). ® P4B-LS KBPWR 12 23 +5VSB +5V P4B-LS Keyboard Power Setting (Default) Figure 2-26 Keyboard Power Settings 2-20 Chapter 2: Hardware information