Asus P4B-FX P4B-FX User Manual - Page 38
Keyboard Power Settings, on audio models only, Audio CODEC Settings
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2. Keyboard power (3-pin KB_PWR) This jumper allows you to enable or disable the keyboard wake-up feature. Set this jumper to pins 1-2 if you wish to wake up the computer when you press a key on the keyboard (the default is the Space Bar). Set this jumper to pins 2-3 to disable this feature. This jumper is set to pins 2-3 (Disabled) by default. The keyboard wake-up feature requires a power supply that can provide at least 1A on the +5VSB lead. If this requirement is not met, the system does not power up. The total current consumed must NOT exceed the power supply capability (+5VSB) whether under normal condition or in sleep mode. KB_PWR 2 1 Enabled 3 2 Disabled (Default) P4B-FX P4B-FX Keyboard Power Up Figure 2-21 Keyboard Power Settings 3. Audio CODEC (3-pin 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 into one of the PCI slots. The default setting is Enabled. P4B-FX AUD_EN1 12 23 Enabled (Default) Disabled P4B-FX Audio Setting Figure 2-22 Audio CODEC Settings 2-18 Chapter 2: Hardware information