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How bad is Phase Change for your day to day computer? - Page 4

post #31 of 38
For the people who want silence:

http://kingpincooling.com/forum/showthread.php?t=490

Just make one of those and run the unit in another room (long tubing)
 
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post #32 of 38
Quote:
Originally Posted by Alatar View Post

Much louder than a pump. Loud enough that I don't like using my rig without headphones. Phase change units have compressors in them. It's like having a AC unit next to your rig.

And with a 3930K every phase change setup is going to be put to the test. at 5ghz+ these things put out tremendous amounts of heat and for some chips in some circumstances (at maybe 1.55v or so) you might hit a point where the phase change unit gets overloaded and shuts down. At this point you're likely well over 5ghz though. But still you don't get better voltage scaling with colder temps unlike you would with many other CPUs. But if you're getting a 4930K this september then a phase change unit would be awesome as Ivy scales really well.

And as for insulation for 24/7 use I would recommend the following:

-kneaded eraser on the front and back of the board, at least a 15x15cm area
-dielectric grease in the socket (useful for 24/7 use)
-some paper to catch any condensation even though it's unlikely with good enough amounts of other insulation
-armaflex on top of the other insulation stuff





Would have appreciated this in my thread tongue.gif Thanks for the pics!
post #33 of 38
Quote:
Originally Posted by Coolio831 View Post

Off Topic: oooooooooooo I know what i'm asking santa!
lol me too
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post #34 of 38
I had a phase change unit for a few years and ended up selling it to afford some better LN2 gear. They're each quite different when it comes to the noise they make. Some are designed to run more quietly than others... I'd shoot LD a message and ask him to make a film of his quietest model. If I recall, I think the one Alatar has is one of the louder ones because it's made more for benching rather than 24/7 operation.

As he mentioned as well, SB-E only benefits a little bit on the frequency it can run subzero, and this depends largely on the sample itself. For example, most SB-E chips top out around 5.1-5.3GHz. If your chip is one of these, taking it subzero isn't going to help. The chips it will help are the chips that with do 5.3GHz+. These can require 1.50V+ that you're not going to want to run with air or watercooling for a 24/7 system.

However, Ivy Bridge and Haswell both scale with temperature (unlike Sandy Bridge). This means that at a certain voltage, lowering the temperatures will also allow higher frequency. For example, a chip may do 5.1GHz at 1.55V with a load temperature of 65 degress. However, on phase change around -35 degrees, this chip will likely be closer to 5.5-5.7GHz (IB/Haswell) with 1.55V.
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post #35 of 38
Thread Starter 
Maybe i should get a MAGNUM TH10 and just build a bad ass water cooling system
post #36 of 38
Quote:
Originally Posted by briddell View Post

That's why I'd just go for an overkill loop; you won't get half the performance of a phase changer, but we must make sacrifices.

why not an overkill loop with a TEC or Peltier?

Also i priced checked, and Frozen CPU wants 1300 USD fora phase change LD and LD them selves want about 1700 USD. it seems talking to LD would make the most sense, since models run quieter than others.
Edited by cdoublejj - 10/27/13 at 10:01pm
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post #37 of 38
We are now testing PC-V2 and PC-V10 units with some more quiet fans. As soon as tests are done performance and sound test we will report them here.

Kind Regards
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post #38 of 38
that's awesome! are either of those dual head?
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