Anyone had any luck OCing a Cyrix MII 266?

[TheFakeElCheapo]

I'm VERY new to overclocking and I don't really know what the hell I'm doing. With that said I overclocked my ancient Cyrix MII 266 to 333 mhz by increasing clock speed from 66 to 75 mhz. I tried 83 mhz but it froze every time. At 3.5x(?) and 75mhz it's pretty stable. Cooling doesn't seem to be an issue so far as I have a 70 mm fan blowing right on the heat sink/fan combo.

I have a PC Wave M575 MB with TX Pro Chipset (AMIBios). I haven't changed any voltage settings. I'm not sure if I could because there is only one set of pins on the MB where the manual says there should be 6! So I'm not sure what voltage I'm running. Also, I havn't changed any of the BIOS settings either.

I'm just wondering if anybody could offer any suggestions or recomendations on how to improve this setup further. I did a search of past posts but I couldn't find anything close to my setup.

This is my first post on a very informative forum and I would appreciate any help. Thanks!

 

[JT]

I've had luck overclocking the 233mx. I'd try playing with the multipliers a bit and up the fsb to 75mhz.

 

[TheFakeElCheapo]

Boy did I get a rude introduction to overclocking! I thought everything was working just fine since I increased the bus to 75 Mhz. But then the computer staring "blue screening" more and more after about a day. My wife and kids (the computer geniuses they are) would just hit the reset each time instead of at least TRYING to exit Windows. Eventually something in the registry got corrupted and I couldn't load Windows anymore. Not with a rescue disk, nothing. I couldn't even reinstall Windows because it kept rebooting everytime it tried to check the registry. So the bottom line is I LOST EVERYTHING ON MY HARDRIVE BECAUSE I HAD TO REFORMAT. Of course I hadn't backed anything up in a long time so this really SUCKED.

I'm definitely a little wary about overclocking now.

Oh yea, my processor is a Cyrix MII 300 not 266. So for all that trouble I got a measly 33 Mhz boost! Whippee!