Has anyone here overclocked an AMD K6-3 450 successfully? I have tried overclocking it to 475 but it crashes..Would appreciate it if you can write down the steps on how you accomplish the overclocking.
Well it all depends on the quality of chip you use:
I'm able to run mine @ 475 (95X5) @ 2.4V without any problems whatsoever. Others can run theirs at 500 and 504MHz (112X4.5) even without any voltage bumps, however I can't do that. Some may not be able to overclock theirs at all, but unfortunately if you can't even reach 475, you are most likely to be one of them.
Try more cooling.
2/ Cover OFF Computer.
3/ Get the BIGGEST cpu fan/heatsink combo you can fit in.
4/ Put another fan,(old or new fan that comes with power-supplies is good),and place it about 2"(inches) in front of the cpu fan.Get power for it from the chassy fan plug on your motherboard.
5/ Keep trying !!!.....