Settings Motherboard
H/W .3 SETUP
3.HARDWARE SETUP
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.
| DSW |
| ON | ON | ON | |
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| 1 2 3 4 5 | 1 2 3 4 5 | 1 2 3 4 5 | |
| CPU | → | 66MHz | 75MHz | 83MHz | |
| SDRAM → | 100MHz | 112MHz | 124MHz | ||
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| ON | ON | ON | |
|
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| 1 2 3 4 5 | 1 2 3 4 5 | 1 2 3 4 5 | |
CPU | → | 100MHz | 100MHz | 112MHz | ||
| ||||||
| SDRAM → | 150MHz | 100MHz | 112MHz | ||
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| ON | ON | ON | |
|
| 1 2 3 4 5 | 1 2 3 4 5 | 1 2 3 4 5 | ||
| → |
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| ||
(BUS) Frequency Selection CPU | 124MHz | 133MHz | 150MHz | |||
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| SDRAM → | 124MHz | 133MHz | 150MHz | ||
(JumperFree Mode)
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 current 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.
22 | ASUS |