Asus P4B266-E, User Manual, Page: 43 / 142

ASUS P4B266-E motherboard user guide 2-19
3. CPU frequency selection (DSWF 1-5)
This option tells the clock generator what frequency to send the CPU.
This allows the selection of the CPU’s external frequency (or Bus
Clock). The BUS Clock multiplied by the Frequency Multiple equals the
CPU’s 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.
P4B266-E
®
ON 12345
120MHz
60MHz
30MHz
ON 12345
125MHz
62MHz
31MHz
ON 12345
133MHz
66MHz
33MHz
ON 12345
120MHz
80MHz
40MHz
ON 12345
111MHz
74MHz
37MHz
ON 12345
105MHz
70MHz
35MHz
ON 12345
100MHz
67MHz
33MHz
DSWF
P4B266-E CPU
External Frequency Selection
CPU
AGP
PCI
CPU
AGP
PCI
P4B266-E
®
P4B266-E RAID IDE Setting
RAID_SW
Enable
Onboard RAID
Disable
(Default)
1 2 2 3
4. RAID setting (3-pin RAID_SW)
(on RAID models only)
This jumper allows you to enable or disable the onboard ATAIDE1 and
ATAIDE2 connectors. Keep the default setting (pins 1-2) if you wish to
use RAID configuration. Set to pins 2-3 to disable the connectors.