[bleedtheskyline]

If you look at the way computers do it..

When people overclock, they usually put a better cooling system in, like water cooling, or TEC's. MY bro gets Custom PC magazine, I know some of the stuff. :] But with the PSP, your pretty much stuck with the same cooling system thats inside, I don't know what it is, it's probably vents or something. You could always go sit in a cold place. But doubt that'd help :]

So yeah, if you're gonna run the clock speed higher, I suggest you only do it for short bursts of time. I'm not expereinced in PSP hacks and stuff though, just applying what I know from computers.