Asus P3W-E - Manual (Page 22)

22 ASUS P3W-E User’s Manual
3. HARDWARE SETUP
8) CPU External Frequency Setting (DSW–SW2-6)
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.
IMPORTANT: When JumperFree mode is enabled, use BIOS setup in place of
these switches (see CPU Speed in 4.4 Advanced Menu). Only selected switches
are illustrated, see the next page for a complete frequency listing.
NOTE: For JumperFree mode, DIP switches 2-6 (DSW) must be set to OFF.
P3W-E CPU External Clock
(BUS) Frequency Selection
DSW
CPU
SDRAM
→
→
69MHz
103MHz
66MHz
100MHz
CPU
SDRAM
→
→
75MHz
112MHz
72MHz
108MHz
CPU
SDRAM
→
→
109MHz
109MHz 104MHz
104MHz
1 01 01
®
P3W-E
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
CPU
SDRAM
→
→
133MHz
133MHz 123MHz
123MHz
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
CPU
SDRAM
→
→
140MHz
105MHz 136MHz
102MHz
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
CPU
SDRAM
→
→
153MHz
115MHz
149MHz
112MHz
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
71MHz
106MHz
100MHz
100MHz
117MHz
117MHz
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
133MHz
100MHz
ON
1 2 3 4 5 6
146MHz
110MHz
ON
1 2 3 4 5 6
70MHz
105MHz
76MHz
114MHz
111MHz
111MHz
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
142MHz
142MHz
ON
1 2 3 4 5 6
143MHz
107MHz
ON
1 2 3 4 5 6
Motherboard Settings
3. H/W SETUP
WARNING! CPU frequencies other than 66MHz, 100MHz, and 133MHz 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.