Atrayitti

I am really new to this forum, and I don't want to sound like an idiot to early lol. But it has to happen sometime.... so here goes.

What is the point of phase change and other sub-zero cooling systems? I mean, why keep your CPU at below 0c? Water cooling can keep it at safe enough temps, where I've heard of people OC'n their i7 to over 4.6ghz. So why put in the extra work/money/risk of nitrogen, dry ice, phase change, etc? Is this only used for specialized rigs where the processor may actually need to be this cold, and it is not usually used for gaming?

sorry.

and thanks

eclipseaudio4

Basicly you hit it right on the head. For the most part it is only used for benching like my oc in sig. Of course my rig cost me nothing because I had all the stuff I needed lying around.
There are however people who do use one form or another of phase change 24/7. This is mostly in the form of chillers. You can actually have a completely silent PC doing so because there are no fans needed If you do it right, and the chiller can be in a closet, crawl space, or another adjoining room.

But most of all they are used for benching.

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The Official MSI 790FX-GD70 Owners Thread

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Gizmo

You think you can point me in the direction of these chiller systems you speak of?

eclipseaudio4

Yeah no prob one sec.

This has been down for a while but. Link

From the master Drewmeister

& utnorris another good one. link

While these are not direct die Phase change(which is much much more complicated) You can see load temps @ -*c quite easily. w/o direct die.

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The Official MSI 790FX-GD70 Owners Thread

AMD 790FX+SLI

Blue Moon Rising Work log Easy 4.2
5000+ X2 @ 3.6 on Asus M2N32 workstation Pro

Nivis Tigridis

So if I've understood correctly it's basically using the A/C as an big radiator for air?

DuckieHo

More like.... using the same technology as A/C for spot cooling.

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Nivis Tigridis

Ah ok... I grasp the basic Idea.

Thanks

jpz

Extreme low temperatures can have a huge effect on processor stability. If you make it significantly colder, you can increase the clockspeed without increasing the voltage. The general rule of thumb has been that you gain about 3% overclocking potential for every 10C drop in temperature.

Tr1ggrhappym0nk

It's a little more complex than that. You know how water boils at 100C? When it gets that hot on a load, it tends to keep the load very close to that temperature. A phase change unit uses elements that boil at much lower temperatures, but concentrates them at higher pressures to lower the boiling point even more and cool higher loads.

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from a newegg review on an e8600
if it isn't on fire, it's still got some headroom

5.265ghz e8400

Nivis Tigridis

mmm Could you use an A/C to cool down your case and would it worth it?