Abit BX6-2 and Celeron 433

[ktool1]

I messed up and put the bus speed to high and the MHZ too high, now it won't boot... Please somebody help, how do I get back into Bios to fix it.....

[Comage]

Look for the "Clear CMOS Jumper" from your motherboard manual and short the jumpers on your motherboard with a jumper cap or screwdriver tip for a few seconds.

OR

Take out your CMOS battery for a few seconds and replace the battery to reset the BIOS settings.

[Sterling_Aug]

Or you can clear your BIOS the easy way that Abit designed into their motherboards.

1.) Turn off the system.
2.) Press in and HOLD the Insert key.
3.) While pressing the Insert key turn on the system.
4.) Hold the Insert key until the BIOS screen appears.

You now have the factory defaults loaded into the BIOS. Change all of the settings again and reboot.

[ktool1]

Thanks... I was able to fix the system... Now..
What Multipliers do I use for a 433 MHZ since there are none only a 4 and a 4.5?? What do I do? I believe I read an article written by somebody on overclocking this board, and I tried some settings, but with no luck. Could you help again?

[apocalypse]

the CPU speed is determined by CPU clock multiplier * Front Side Bus (FSB).

so, the celeron runs at 66 Mhz for FSB, 66 * x = 433?
x = 6.5

if your motherboard only has 4 and 4.5 you will only be able to get 264 and 297 respectively.

i checked abit's site and that board supports up to 700 Mhz processors, which is a 7 clock multiplier, which at the 66 Mhz FSB gives 462 Mhz CPU speed.

i don't think the celeron could handle that speed, but just adjust the settings a little at a time and see how high you can get it.

[ktool1]

Thanks for the info... Now what about an Athlon 900MHZ with a Shuttle AK12 MoBo. 448 MB RAM, 64MB Video Card, plus a bunch of fans? How would i approach that one? I could not find the multipliers in BIOS.

[apocalypse]

according to the shuttle website http://www.spacewalker.com/english/mainboard_detail_info.asp?number=91 the FSB and CPU multiplier are "Auto setting".

the chip basically tells the motherboard what its CPU multiplier are and then has a 100 Mh FSB (at DDR is 200 Mhz FSB) and then sets the speed. the only way to get it to run at higher speed would be to adjust the jumpers on the CPU itself. it can be done but not for the novice. you can read up on it here, http://www.overclockers.com/tips726/ and here http://www.overclockers.com/articles490/.