old phase change unit what will it cool these days

running_troll

running_troll

running_troll

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22 Oct 2010
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Hi all,

I have a Prometeia mach 1 phase change unit it runs at -45 unloaded, i was using it on a amd fx53 with some crazy overclock back in the day,
im currently trying to sell the unit on ebay and i've ben asked the question
" will it be able to cool the newer cpu's (dual, quad and hexa core)"

anyone know how much heat these cpu's give off and will this uint handle it
 
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well I have no experience or authoritah on phase having never used it, what I do know is that back in day these units could handle something like a P4 fine but they generally don't have the thermal capacity to cool current gen CPU's, can anyone else confirm/chime in here?
 
If I remember well that CPUs max temp was around 50c and they were around 100W.
If that's the case then that phase change should still do better than high end WC.
It might not keep it at -45 but surely around -10 to 10c mark (maybe lower depends on CPU ) should be possible for new CPUs.

They are still very strong cooling units but the problem with phase change is that it's extremely noisy and unsuitable for 24/7 usage, usually huge as well.
 
The bog standard one was tuned for 145W at -25C, I doubt it'll give you anything extra over water once you start seriously overclocking as you'll be pumping out over 200W on an i7 once you reach the point of having to up the volts. The unit would likely just trip out on overtemperature as it would likely be unable to recondense the refrigerent quickly enough I would imagine.
 
Jokester said:
The bog standard one was tuned for 145W at -25C, I doubt it'll give you anything extra over water once you start seriously overclocking as you'll be pumping out over 200W on an i7 once you reach the point of having to up the volts. The unit would likely just trip out on overtemperature as it would likely be unable to recondense the refrigerent quickly enough I would imagine.
Click to expand...

http://img264.imageshack.us/img264/1117/i5overclock.png

That screenshot shows the cpu as using 85Watts and being at about 60c for an overclocked i5 - from another post in this forum (the picture has nothing to do with me, just noticed it after originally reading this post).

If the that screenshot is at all accurate, then surely it would be more than enough?

Edit -

Link to the original thread for the screenshot for ref http://forums.overclockers.co.uk/showthread.php?t=18199226
 
thats intreasting,

Thinking of it im running an i7 at work and its normaly at 50c - 60c and 70c at full load and thats on a small fan and heatsink inside a small form factor shuttle case, dosnt seem like since there are 4 cores its pumping out 4 times the heat or anything, but mabee im way off :P
 
ecksmen said:
If the that screenshot is at all accurate, then surely it would be more than enough?
Click to expand...
I could well believe it, but then you don't need phase change for 4GHz. Once you start increasing Vcore to increase your clock then power consumption will go through the roof. I've got my i7 on 1.35V at 4.4GHz on passive water and full load is 200+W.
 
i'm sorry but this is just a way to advertise your ebay sale there was no need to link your sale because if someone did not know what your were on about they would not even answer your thread
 
was not my intention but i will remove it,

i have managed to find a pdf for the unit from http://www.crazypc.com/support/nventiv/nVENTIV.htm :) jokester was dead on
Cooling Capacity Evaporator -40 to -30ºC @ 25 - 105W,
(-25ºC at 145W) at 20ºC ambient
and i7-980X was 210 watts, versus the i7-975's 231 watts

guess its to much to ask since thats befor you even start overclocking it.

i've seen ppl say you can upgrade this unit anyone know what parts need to be changed ?
 
I think it would still cool a 980-x altho it probably won't do it below freezing, it's something that needs to be tested to be sure. Have you looked around google to see if anyone is still using one with a modern set-up

*edit* according to google fu the company was sold on in 2009 to another company so i doubt very much you could even get mounting kits for it
 
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Brings a tear to my eye :( Sold my Mach 1 about a year ago. There are upgradeable, but it is quite a costly and time consuming process. There are also universal mounting kits available with the 'upgrade'. You will need a qualified HVAC engineer though, and preferably one who specializes in these things - best place to look is XS forums - they have a dedicated section covering Phase builders and will recommend someone to you. Have a good read of the 'Relations' thread set up to deal with client issues - lots of horror stories - needs research!
 
Generally upgrading the units equates to having the capillary tube shortened IIRC ~1 foot per 50w additional load and regassing with different refridgerant gasses, R290 (Propane) seems to be the most popular.
 
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