<< darkmajig: how did you overclock your P2 233? are you using a jumperless mobo, or did you fiddle with the jumpers on your mobo to get it? >>
Well, this PII system started life as a Dell (although a lot of stuff has been changed and/or upgraded since I first got it). I still have the Dell mobo though and the same processor. Anyways, it's from the era befoe Intel started locking the multipliers on their processors. The motherboard has a convenient little "Mainteneance" jumper, which when set to 2-3 instead of 1-2 will allow you to boot into maintenance mode, and fiddle with all sorts of options in the BIOS (which aren't available in the normal BIOS). One of these is processor speed, 233, 266, 300, and maybe 200 and 333 too, I can't remember exactly. Basically though, this is changing the multiplier in your processor. I run it at the multiplier for 266, and use SoftFSB to boost the FSB to 76.7MHz. I used to run it at the multiplier for 233 with an 80MHz FSB, but then I found that little jumper, and started running like this. I can get it to run at 320.1MHz (multiplier for 266x80), but it isn't stable and crashes shortly after setting it. I can also run fine at just 300MHz using hte multiplier adjustment and no FSB change, but not only does the lower multiplier and higher FSB give me a few more MHz, it runs everything faster, of course.
Anyways, I probably got sidetracked there, but that's the story of how I overclocked.
P.S. Not even an extra HSF or anything. Hell, this thing doesn't even have a fan on it, although it does have a bigas heatsink.