I have a Celeron 566 PIII on a DFI P2bXL R.D. Motherboard. Does anyone know how much I can over clock this safely? Can any one point me in the direction of a "How to"? This is the specs from my manual:
Intel 440BX AGPset
Processor
450/100MHz or 500/100MHz Pentium III processor
233/66MHz, 266/66MHz, 300/66MHz, 333/66MHz,
350/100MHz, 400/100MHz or 450/100MHz Pentium II
processor
266/300/300A/333/366/400/433MHz CeleronTM processor
(SEPP for Slot 1)

So do you have a Celeron or PIII? It's a bit confusing the way you have it. Anyway, I found this page (http://www20.tomshardware.com/motherboard/19981109/440bx-06.html) on Tom's Hardware Guide about your mobo (or at least close to it).

If you have a Celeron, then your FSB is 66MHz, in which case you have a lot of room to grow! If it's a PIII, not so much but still a bit of elbow room. Again, overclocking is not for the faint of heart and voids just about every warranty you can think of, not to mention it can permanently damage your PC.

Before you do anything, take a look at some OC'ing sites like Overclockers.com (www.overclockers.com/)

Sorry about the confusion, it is a Celeron. If I can switch my FSB to run at 100 what will be the new speed?

Also, thanks for the Tom's Hardware link, that was very useful.

Also try this link (http://www.overclockers.com/).

saphalline got there first.:)

If I can switch my FSB to run at 100 what will be the new speed?

Dead...or a good chance of it, not to mention fried video card, memory...

Overclocking is not highly recommended around here, and can cause a lot of headaches if not done properly annd very carefully. Overclocking the FSB is definitely NOT the way to do it. That overclocks the memory and possibly video too, creates a lot of heat and can result in instability at best, fried components at worst.

In addition to that you probably won't get enough out of a 566 to make a marked difference to begin with, you would have to go to at least a 1GHz CPU with 100MHz FSB to notice a definite real-time difference in performance. The best you can hope to get out of the 566 with any kind of stability is probably around 700-725 or so...after that it will get unstable and run hot...

http://www.hardwarecentral.com
go there u can find how to overclock safely