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In-tower phase change: concept design - Page 2

post #11 of 16
The "old" opeterons that were initially on 939 were getting 3.0 from like 2.0 on stock cooler, or at least 2.9. And this was stable. On phase they did into the mid-highish 3's. And yes, they have Opteron dual cores for 939 and 940, its server cpu's (though the 939's seem to have been rebadged FX's or something) and servers require more power.
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post #12 of 16
Thread Starter 
Ok. From the reviews I'm reading on Newegg, it seems like people are OCing the crap out of their Opterons. I'll look into that some more. Any thoughts on my "condensor?"
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post #13 of 16
Quote:
Originally Posted by Epsilon
I don't know much about peltiers. I'm looking for an all-in-one solution, contained entirely inside the case in its (near) original form. If have have to forget GPU cooling to do that, no big deal. However, I'd like to leave the possibility on the table for further exploration and ideas.
Pelitiers rock....i use them to chill water right before it hits my CPU...and use a rad just for good measure......
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post #14 of 16
What size is the Discharge on the compressor?

You can get 1/4" Driers that have a split outlet allowing you to connect two capillary tube's to it, and then you just need to use a 'T' to connect the two suction line's together.

As said you will need to have a sufficiently sized condensor and i would recommend going for a 5/8HP or 1HP compressor for what your doing, this depend's on the temperature range you want to achieve.

What you want to do is pretty straight forward.

What gas will you be using?, i'm guessing either Propane or R134a.

Do you have all the necessary tools?, ie:

Flaring tool
MAPP Torch or Oxy/Acetylene setup
Brazing rod's
Vacuum Pump - 30 micron's or better
Tube cutter's
Purging equiptment
Charging manifold and Hoses

Optional
Load simulator (Allow's you to tune the charge to achieve the best possible temp's)

A lot of people use 2 x 1 Ohm Resistor's in series with a Meanwell 12v PSU for this.

If you need any more help then feel free to PM me.
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post #15 of 16
Thread Starter 
PetrolHead,
Thanks for your reply. I have dropped my Y-splitting aspirations in favor of simplicity and saving space. Also, I've decided to use a Lian-Li PC-73SL instead of the G5 case, again to reduce hassle.

http://www.newegg.com/Product/Produc...82E16811112507

I've hosted the compressor manual here:
http://www.ellixan.com/compressor.pdf
You need to look at the F-Series (tall). Hope that has what you need to know.

I'm thinking of removing the HD cage & 3.5 bay and putting the compressor there. I'm not sure about where the condenser will go, maybe above the PSU if there's room. Since I don't need to cool both the CPU and GPU, I'll probably stick with the 1/4 HP Compressor, as long as it gives me a negative idle temp. As I understand it, voltage and general mobo stability is the limiting factor in OCing on a phase change system, not heat.

I don't have all of the necessary tools but can start acquiring them as we move towards the summer months... I think I read somewhere that if you're smart you can do this for about $100.

Thanks for your reply, let's keep talking.
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post #16 of 16
First of all you need to re-think your budget, you'll never do this on $100.

You could do it on $100 if you already had all the tool's and took some of the needed part's from discarded unit's but since you don't have the tools i'd be looking more at the $250 - $300 Range.

You could get a HVAC Firm to Vac and charge the unit for you, i'd reckon that would cost you about $75 - $100.

Quote:
Originally Posted by Epsilon
As I understand it, voltage and general mobo stability is the limiting factor in OCing on a phase change system, not heat.
Well because you are taking the processor below 0c you don't really need to worry about heat so yes you are correct, the general stability and quality of everything else matters so much more.

Quote:
Originally Posted by Epsilon
I'll probably stick with the 1/4 HP Compressor, as long as it gives me a negative idle temp.
You'll deffinetly get a negitive idle and load temperature.
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