AMDCam said:
Well okay, so a big fan blowing into the condensor will work? I'm just saying, $700-$1000 for phase-change is not in my pricerange, but at wal-mart I can get a $100 fridge and mess with it. How could I find a bigger condensor?
And yes, I would love a private message to see how you ran an air-cooled Mobile at 3ghz, and what I could do with an Athlon 64 when I finally got one. And your use of words (spreading rumors) is definitely not what I was doing, I was just saying that I knew of a guy who sent me a link to a way to unlock a Barton XP multiplier. Until I find it I'll keep my mouth shut, but I'm not spreading rumors.
How I did it, was....
I was sitting in my room one cold wintery night.. and happen to look at the temperature.. -7F... im sitting there thinking.. damn... I wish I had a prommie or something so I could have temps like that with thus cpu that was doing 2700mhz inside using my SLK-947U+tornado combo.
Then I had the bright idea to take the sucker outside
We had almost 3 feet of snow.. but I took it out to the garage, carrying everything myself at 10:00 at night, and standing outside for an hour and a half freezing my arse off trying to get this sucker to do well.. booted at 2700mhz easy, 2800.... then 2900... tried to keep going, but 3ghz wouldnt boot either because of temps being to high (which I think it was), or my antec 350w not being able to handle the load. I did manage to grab the camera and snap a few shots of the monitor displaying 3ghz. 2923 was best I could get windows at.. and my onboard sensor was saying my cpu was at around 43C.. at 1.9v
I ended up trying 1.9 all the way to 2.3v and yielded no success, but the thing im most proud of, is it doing 2800mhz at 1.85v
Once I get a phase change unit finished, I plan on getting that CPU back and building a socket A system, just for the heck of it..
As for your condensor problem, you must first understand how phase change works. It compresses a *gas* to raise and lower the boiling points, and thus making one end freezing cold while the other gets hot.
The problem with just "finding a bigger condensor" is that you would have to vaccuum the gasses (most likely R134a in a fridge) out, cut off the already built in condensor, and then braze in the new one, and leak testing the system.
After that, you will have to deal with cooling the condensor, which is simple enough, but also the compressor size.
If its a small minifridge like the one I was using it will probably be something around 1/8hp, which is about right for R134a and the tamer gasses.
But its not
nearly cold enough to justify the hassle of brazing a new condensor into the unit and regassing it with a system that will most likely not even yield sub zero temperatures while loaded with an athlon 64 system, letalone a preshott.
This brings up the two much more rewarding solutions- a water chiller and a standard phase change.
Standard phase change can be had for ~$600 from chilly1 over at XS and will perform extremely well, and just leave vapochills in the dust
The second option, which would be much more justifiable in buying and/or finding the stuff necessary to do a condensor swap, would be a chiller. Its just making a copper coil in place of the evaporator, and sticking it in a resevoir for water cooling. This way, 40C liquid can be achieved (requires a hefty mix of antifreeze/denatured alcohol to keep h2o from freezing up tho, but at those temperatures, it doesnt matter as much).
The work needed to convert a fridge is just overhwhelming compared to the alternative solutions, and rewards from those.
The temperature inside my minifridge while running my AXP at ~2ghz passivly cooled, at 1.3v was around 13C. definatly not very cold.