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22 ASUS CUWE User’s Manual
8) CPU External Frequency Setting (DSW)
This option tells the clock generator what frequency to send to the CPU, DRAM,
and the PCI bus. This allows the selection of the CPU’s External frequency. The
CPU External Frequency multiplied by the Frequency Multiple equals the CPU’s
Internal frequency (the advertised CPU speed). NOTE: You may set the memory
speed independently from the CPU External Frequency. Depending on your
memory type, select the appropriate “SDRAM” speed along with the appropri-
ate “CPU” speed.
NOTE: For JumperFree mode, all dip switches (DSW) must be set to OFF.
010101
®
CUWE
CUWE CPU External Clock
(BUS) Frequency Selection
DSW
CPU
SDRAM
→
→
70MHz
105MHz
75MHz
112MHz
66MHz
100MHz
ON
12345
ON
12345
ON
12345
CPU
SDRAM
→
→
100MHz
100MHz
105MHz
105MHz
85MHz
128MHz
ON
12345
ON
12345
ON
12345
CPU
SDRAM
→
→
124MHz
124MHz
133MHz
133MHz
112MHz
112MHz
ON
12345
ON
12345
ON
12345
CPU
SDRAM
→
→
140MHz
105MHz
149MHz
112MHz
133MHz
100MHz
ON
12345
ON
12345
ON
12345
CPU
SDRAM
→
→
166MHz
125MHz
ON
12345
(JumperFree Mode)
NOTE: Frequency Multiple settings are not available here because usually Socket
370 processors have locked Frequency Multiples. If your processor does not
have a locked Frequency Multiple, you must use CPU Core:Bus Freq. Mul-
tiple in 4.4 Advanced Menu of the BIOS setup to set the Frequency Multiple. If
the Frequency Multiple is locked, setting the Frequency Multiple in BIOS setup
will have no effect.
3. HARDWARE SETUP
Motherboard Settings
3. H/W SETUP
WARNING! CPU frequencies above 66MHz exceed the specifications for cur-
rent Celeron processors and are not guaranteed to be stable. For Coppermine pro-
cessors, CPU frequencies other than the recommended bus frequencies are not
guaranteed to be stable. Premature wearing of the processor may result when
overclocking. Be sure that the DIMM you use can handle the specified SDRAM
MHz or else bootup will not be possible.