cant go to 133 bus in bios

[subconcept]

I boot up and i go into the setup and change my bus from 100/100 to 133/133 (running a duron 900 on ECS K7S5A with sd pc133 ram ) and i save settings and exit to reboot and it dosnt boot i get no bios beeps or pictures on the screen, so the only way i can get it to boot again is to clear the cmos with the jumper. Any ideas why i cant go to 133

[Placid]

If your cpu is locked it might not want to run at the speed 133 is trying to make it run at.

[subconcept]

Ahh makes sense. Ill leave it at 100 then just to be safe.

[FRANK]

Check your manual to see if you have to set a jumper to enable the 133FSB, many boards require this.

Good Luck!

[LinkStatic]

if your mobo does allow it, and you have unlocked your chip... lower your multiplier ( i.e 7*133 ) so as you can boot to 133MHz FSB.. and start experimenting from that point... booting at the default multiplier of 9 is maybe too much for your chip ( 9 x 133 )...