Asus P4S333 Manuel d'utilisateur Page 40

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2-18
Chapter 2: Hardware information
2. CPU frequency selection (DSW1 Switches 1-5)
This option tells the clock generator what frequency to send the CPU.
This allows the selection of the CPUs external frequency (or Bus
Clock). The BUS Clock multiplied by the Frequency Multiple equals the
CPUs internal frequency (the advertised CPU speed).
Set the CPU frequency only to the recommended settings.
Frequencies other than the recommended CPU bus frequencies are
not guaranteed to be stable.
To select the CPU external frequency using the DIP switches, ensure
that the JEN jumper is set to jumper mode.
P4S333
®
P4S333 CPU
External Frequency Selection
CPU
DSW1
DRAM
100MHz
ON
12345
100MHz
ON
12345
100MHz
133MHz
ON
12345
100MHz
150MHz
ON
12345
100MHz
166MHz
ON
12345
100MHz
160MHz
CPU
DRAM
105MHz
ON
12345
140MHz
ON
12345
108MHz
144MHz
ON
12345
112MHz
149MHz
ON
12345
133MHz
166MHz
ON
12345
133MHz
133MHz
3. Keyboard power (3-pin KBPWR1)
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 (see section 4.5.1 Power Up Control).
P4S333
®
P4S333 Keyboard Power Setting
KBPWR1
+5V
(Default)
1
2
+5VSB
2
3
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