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So what kind of clock advantages do you guys get from phase (24/7)

post #1 of 7
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*edit* I think I may have actually posted this in the wrong forum... does this belong in "other cooling"?

So I game and practically live in my office/warehouse, which is actually a rather fancy chemistry lab... I already have subzero chillers the size of small cars running 24/7, and the thought occured to me that I could simply route some coolant to my PC for extreme cooling. So I'm just trying to figure out of its worth it...

I already run a fan/radiator cooled water setup, and I'm pulling 4.8GHz stable out of my 2600k. How much further can I push it with subzero cooling? This isnt for benching, its for gaming/stroking my own ego.

Side note: If it makes a difference, I might switch to intels extreme 6 core or whatever, I just havent felt the need yet.
Edited by Alonjar - 3/4/12 at 11:30am
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post #2 of 7
Not sure if it belongs elsewhere, but if it's a phase cooled chiller you're thinking about, seems like it could go here.

What improvement on OC is a tough question but there's always something. Every chip will respond differently.

Non - SB chips seems to give better OC results but even SB will scale a bit.

I hear they seem to like the 0 to -10c range, colder occasionally making bootup an issue.

Seems like they can run colder but don't like to start too cold.

So if you have a chiller there in that kind of 0c ish water temp range, would be a good start. Need to insulate water lines and such so you don't frost up or condense water, same with the blocks.

I've heard of some that just don't give at all with cold, and some 20% to 50% improvements. So it's in your ability and the chip's ability. Just can't know til you try smile.gif

But the AMD stuff isn't giving cold issues anymore to any great extent, and the 6 core and 4 core non SB stuff seems to scale great with the cold. So there's options if you wanted to play with the colder stuff too.


Gray
post #3 of 7
Depends on the CPU but in general the colder you go the more voltage you can give a chip without damaging the chip.
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post #4 of 7
Sandy bridge doesn't seem to scale well with cold so much..imo..:thinking.gif: maybe if you go IHS-less
 
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post #5 of 7
Sandy Bridge apart form lower temps there is no benefit from phase, first generation core i5/i7's have some cold scaling but you'll be able to run more voltage and be safe.

AMD chips love the cold, I gained an extra 700Mhz on my Phenom 2 x6 moving to phase from a 360mm custom water loop, and that was with less voltage too boot!!
post #6 of 7
Quote:
Originally Posted by Gray Mole View Post

Eeven SB will scale a bit.y
Quote:
Originally Posted by Schmuckley View Post

Sandy bridge doesn't seem to scale well with cold so much..imo..:thinking.gif: maybe if you go IHS-less

Nope, as soon as you hit your multiplier wall with SB no amount of cold will make it go higher.
post #7 of 7
I'm assuming that SB has a frequency adjustment too.

I've talked to guys with SS, Cascade and LN2 and they all said that it was very hard work but that there were some gains to be had with subzero cooling on SB.

Just harder to work with, harder to boot up, just plain hard work.

But if you're benching and serious about it, then it can be the difference between a record and second place.

Not saying it's a 'need' (no one 'needs' -50+ biggrin.gif) but if people are using it and getting increases in speed/scores, then it's worth it for those that feel the need...


Gray
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