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ASUS P4B533-VM motherboard user guide
2-17
2. CPU frequency selection (SW1 Switches 1-5)
This option tells the clock generator what frequency to send the CPU,
and to the AGP and PCI slots. This allows the selection of the CPU
external frequency (or Bus Clock).
To select the CPU external frequency using the DIP switches, ensure
that the J6 jumper is set to jumper mode.
Set the CPU frequency only to the recommended settings.
Frequencies other than the recommended CPU bus frequencies are
not guaranteed to be stable.
3. Keyboard power (3-pin KBPWR)
This jumper allows you to enable or disable the keyboard wake-up
feature. Set this jumper to pins 2-3 (+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.
®
P4B533-VM
+5V
1
2
+5VSB
2
3
(Default)
P4B533-VM Keyboard Power Setting
KBPWR
®
P4B533-VM
P4B533-VM CPU
External Frequency Selection
SW1
CPU
AGP
PCI
CPU
AGP
PCI
135MHz
ON
12345
67MHz
33MHz
125MHz
ON
12345
62MHz
31MHz
114MHz
ON
12345
76MHz
38MHz
111MHz
ON
12345
74MHz
37MHz
120MHz
ON
12345
60MHz
30MHz
133MHz
ON
12345
66MHz
33MHz
109MHz
ON
12345
72MHz
36MHz
107MHz
ON
12345
71MHz
35MHz
103MHz
ON
12345
68MHz
34MHz
100MHz
ON
12345
66MHz
33MHz
105MHz
ON
12345
70MHz
35MHz