The big question here is how fast a processor can your mb support and an auxiliary question is how fast can the FSB run. But there's some real confusion going on here. There is no such thing as a celeron PIII. It's either a celeron or a PIII, and some boards can use either with at most changing a jumper setting, and some will only run one kind. PIIIs and celerons were made using socket 370, and celerons used socket 478 too. The celeron sets both the FSB and CPU speed so only very few boards allow you to overclock them. My first advice would be to find as much info as possible by Googling
MB part# filetype:pdf
which will often fetch you a manual. And of course go to the Compaq website for info too. Good luck and have fun with Linux. I'm trying out PCLinux and the new Ubuntu right now too.
We've already ascertained the fastest processor that my mobo can support.
There IS such thing as a Celeron built on Coppermine PIII technology. A Celeron is simply a Pentium with features disabled, lower clock speeds, lower FSB speeds, and less cache. And they're not just for socket 370 and socket 478. Celerons based on PII technology used slot 1 and Celerons based on P4 technology also use socket 775.
Introduced in April 1998, the first Celeron was based on the Pentium II core. Later versions were based on the Pentium III, Pentium 4, and Pentium M. Intel's roadmap lists a series of upcoming Celerons, based on the Intel Core microarchitecture.
A celeron, while typically a bad chip for overclocking, does not have "locked" clock speed or fsb speed as you have said. The only thing that overclocking a celeron depends on, just like every other chip, is the mobo's support for overclocking. Not that this is even applicable, as I am upgrading to a PIII.
Compaq has absolutely no info on this computer, as it is old, and it is from before they were bought by HP.
And as a side note, I've been using Ubuntu since 6.06 came out, so I've already "had fun", so to speak.
Edited by stettybet0, 21 April 2007 - 03:32 PM.