[devin]

sorry I'm too lazy to search the posts, I was wondering now that my warrenty has long expired whether there was a way to overclock my iMac and whether I'd see any reall performance gains from doing so-- thanks devin

[DBursey]

Click here for instructions for overclocking your iMac.

If you search the forums youll probably find more info. Have fun!

I read the articles about overclocking, and I want try it out on my machine. My processor (iMac DV) runs @ temperatures between 85-105 F 32-38 C (copper). I opened up my Imac today, but I am pretty sure I can't do this on my own. Who should I turn to to help me out on this...?

As far as I understood from the postings there is not really a in danger in overclocking the processor. Either it boots, stable or not stable, or doesn't boot at all. So I should have no fear for toasting my processor? Is this correct?

Thanks, Paul

[Kozmik]

I wouldn't think so, if it only runs at 105° F as a top temperature now. Just don't take the thing up past 500MHz would be my advice... I'm scared to do it on my iMac DV SE, as at 400MHz it regularly runs at 123° F.

[blizaine]

If you do it yourself, the only thing I would suggest is being VERY careful. The resisters your are moving, are very fragile. A buddy of mine tried to overclock his iMac (bondi 233), and he was using a tiny little pair of self-pinching tweezers to hold the resister in place while he unsoldered each end of it and the tweezers completely crushed to resister. (the tweezers didn't even apply very much pressure)

The most remarkable thing about this story is that when he put his computer back together (with out one of the resisters), it was overclocked to 266mhz. We even ran Mac Bench to make sure it wasn't a false reading and it had improved scores. He stills uses the computer today with no problems. Very strange.

but you other people may not be so lucky, so be carefull.

later - bliz

[try]

Great... that makes it even more simple! When I crush one resistor I get 500 MHz, when I crush two 550 MHz, When I crush them all I get a dizzling 1000 MHz ....

[Evangellydonut]

lol I guess it's hard to mistake a resistor for a capacitor...I know certain capacitors are used for timing purposes, and taking them out would increase speed. Just look at my OC'd TI-85, now running 3-4x faster!

Anyway, here's a tip as to how to solder surface mounts: tape it down. That's what my EE prof recommends, and he's been teaching the course for years. Also to keep in mind is that if you overheat the surface mounts, it might short...

Once I get enough courage, I'll OC my sawtooth 450...

What If i were to overclock it to 1 ghz, what would happen. Would my imac melt? Or would it not boot?What is the max speed you think I could overclock my DV SE without hurting it. If they could make the new DV SE @ 500 mghz why cant I make mine 500 mghz or more?

[The Dude]

Ok I am not saying that I have ever OC'ed a computer, but I don't think it would be wise to double the speed of a chip at a speed such as 500MHz. I think the safest speed bump you could perform to a Gen.2 DV SE would be maybe 650MHz. Even then you would be pushing it in stablility and tempeture. But 1Ghz? Expect to put the motherboard in another case with a different cooling system entirely.

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Paranoia-
You only have to be right once to make it all worthwhile

-Unknown

I tested my 400MHz DV @ 500MHz. It wasn't stable. Kinda disappointed because it was a copper one.

[iPad]

You have to remember, the higher clocked G3 chips are already near their limits, it's pretty rare to get an overclock from 500, but from 350 (if it is a copper), you are almost guarenteed at least 100mhz.

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