Asus MEW-L User Manual download pdf (Page 22)

22 ASUS MEW-L 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 PC66 (66MHz) or PC100 (100MHz), select the appropriate

“SDRAM” speed along with the appropriate “CPU” speed.

IMPORTANT: Only 66MHz CPU and 100MHz SDRAM should be used on

this motherboard with current 66MHz Socket 370 processors. Other settings are

for experienced users only. When JumperFree mode is enabled, use BIOS setup

in place of these switches (see CPU Speed in 4.4 Advanced Menu). Only se-

lected switches are illustrated, see the next page for a complete frequency listing.

NOTE: For JumperFree mode, all dip switches (DSW) must be set to OFF.

MEW-L CPU External Clock

(BUS) Frequency Selection

DSW

CPU

SDRAM

→

75MHz

112MHz

83MHz

124MHz

66MHz

100MHz

12345

CPU

SDRAM

→

100MHz

112MHz

100MHz

150MHz

12345

CPU

SDRAM

→

133MHz

150MHz

124MHz

12345

(JumperFree Mode)

0 10 10 1

MEW-L

NOTE: Frequency Multiple settings are not available here because usually

Socket 370 processors have locked Frequency Multiples. If your Socket 370

processor does not have a locked Frequency Multiple, you must use CPU

Core:Bus Freq. Multiple 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.

WARNING! CPU frequencies above 66MHz exceed the specifications for cur-

rent Celeron processors and 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.

3. HARDWARE SETUP

Motherboard Settings

3. H/W SETUP

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Asus MEW-L User Manual Page 22

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