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Underclocking: Is it possible to "Over"-do it?

post #1 of 5
Thread Starter 
I am just curious about this: Say you buy an i5-2500k. I know it overclocks like a beast, but how does it underclock? Would it be possible to let it run at somewhere as low as 50mHz (or even lower) on a single core? Of course, you probably can't run Windows 7, but you could install a really light OS or something.

So would this work out, or is there a limit to how low you can underclock?
post #2 of 5
Why would you want to ?

I really don't know the answer to this, but you could go to like 1.8ghz easy and run stable. Anything under that would be pointless, in terms of heat/power if THAT is why you want to underclock.
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post #3 of 5
I've heard of cases where people have claimed they broke their processors by dramatically underclocking them.

I personally don't see how, but i've never tried it. Processors don't use *that* much power so i've never even considered underclocking.

I don't know why anyone would want to underclock to 50mhz. Just buy a $20 processor if you don't care about speed IMHO. They use like 0 power if they were running a OS that is capable of running off of 50mhz.
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post #4 of 5
You're limited by the lowest multiplier and lowest BCLK (or Reference Clock) that your board and chip can do stable.

I don't think the i5's can POST any lower than a 16x multi, and roughly 95MHz BCLK. So you could HYPOTHETICALLY downclock a 2500k to 1.52GHz.
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post #5 of 5
Thread Starter 
Quote:
Originally Posted by Murlocke View Post
I've heard of cases where people have claimed they broke their processors by dramatically underclocking them.

I personally don't see how, but i've never tried it. Processors don't use *that* much power so i've never even considered underclocking.

I don't know why anyone would want to underclock to 50mhz. Just buy a $20 processor if you don't care about speed IMHO. They use like 0 power if they were running a OS that is capable of running off of 50mhz.
Obviously nobody would do it, I am just curious as to if it is possible or not.
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