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air cooling with peltier...

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lightning

Guest
Alpha PAL6035 with 38CFM delta fan plus one 85W peltier...how was that?? is that nice combination?:) err....what would the best voltage supply for that peltier? i know the peltier cannot share power supply with the main system! any good suggestion?? how about any 250W PSU alone for the peltier?:)
 
K

Kryten

Guest
lightning (Apr 16, 2001 10:30 p.m.):
Alpha PAL6035 with 38CFM delta fan plus one 85W peltier...how was that?? is that nice combination?:) err....what would the best voltage supply for that peltier? i know the peltier cannot share power supply with the main system! any good suggestion?? how about any 250W PSU alone for the peltier?:)

I have seen a few different articles around on using pelts with air cooling from what I can gather you would do much better with a smaller peltier (50w) air will never transfer as much heat as water, and being that the pelt reliability relies it's ability to get rid of the heat from the hot side trying to run a pelt without adequate cooling is just asking for a total system meltdown, be happy with the gain you get with a smaller one and remember this gain wont come easy you will have to work hard to get rid of that air temperature
 

Hoot

Inactive Moderator
Joined
Feb 13, 2001
Location
Twin Cities
Newby is right. I have the (currently available) baddest air cooled HSF available and when I paired it with a 156W peltier, it only provided about 6C difference than by itself, on a high wattage OC'd Tbird. Low wattage peltiers will not pump enough heat through them to handle even modest OC'ing at high cpu loads, regardless of whether you use water or air cooling. Realistically, you need a water cooled high wattage peltier to get temps that accomplish anything useful.

Hoot
 

ken257

Senior Member
Joined
Dec 20, 2000
1 to 2 years ago you could get away with an air cooled pelt on most Intel cpu's and see results. You still might see some gain now for example if you can run at 1 gig but not stable it might be just enough to get you over the hump. Now for AMD cpu's it is not even an option as they just give off to much heat. Your best bet would be to set up a water cooling system for that pelt no matter what cpu you are running.
 

jordan

Member
Joined
Dec 31, 2000
never never never air cool a peltier, it will bite you in the azz sooner or later down that road
 

bdf24

Senior Member
Joined
Feb 15, 2001
Location
Harford, WI.
jordan (Apr 22, 2001 08:43 a.m.):
never never never air cool a peltier, it will bite you in the azz sooner or later down that road


jordan, have you ever air cooled a peltier? There is nothing wrong with air cooling a pelt, as long as you have good air flow in your case. If you can exhaust all the heat coming of the HSF nothin is going to "bite you in the azz" !

I have been air cooling pelts for over a year now. If the HSF is big enough and you dont put anything higher then an 86w tec on it you should be fine.
And for Pretty much all PIII's, an 86w tec can make a big difference. It dropped my cpu temps about 15c! My pc idles at 14c, You wont get that without a pelt under normal conditions! Never gets over 26 or 27c under very extreme load. Which is good in my case cause while overclocked to 1000mhz any temps over 29c will cause games to lockup or not load.
 

kat

Senior Member
Joined
Dec 22, 2000
Location
belding,MI,United States
Hoot (Apr 17, 2001 12:11 p.m.):
Newby is right. I have the (currently available) baddest air cooled HSF available and when I paired it with a 156W peltier, it only provided about 6C difference than by itself, on a high wattage OC'd Tbird. Low wattage peltiers will not pump enough heat through them to handle even modest OC'ing at high cpu loads, regardless of whether you use water or air cooling. Realistically, you need a water cooled high wattage peltier to get temps that accomplish anything useful.

Hoot

hoot

have you tryed a lower wattage pelt with your swiftech?
the reason im asking is a 156 will produce that much heat even if its attached to nothing pehaps a 120 would yeild a better result?
as your bird is`nt puting out much more than 85- 95 watts
 
OP
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lightning

Guest
err.......i think you all are way off my question. i just want to know what kind of power supply i need to put up a peltier! okey! let's said 85w peltier from 2cooltek.com or Leufken Socket Peltier Kit, 72 watt also from 2cooltek.com!! they rate as 15.1Volt for 72W & 15.8Volt for 85W
 

bdf24

Senior Member
Joined
Feb 15, 2001
Location
Harford, WI.
Sorry about that!

Maybe this will help a little better. I run a 86w tec 15v's on my 431w Enermax. No second PSU. The addition of the peltier did not budge my voltages really at all. Works great!

If you are thinking of running a second PSU, I've ran tecs on a couple of 250w psu's. Which were rated at 9 amps for the 12v line. It ran fine like that.
 
OP
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lightning

Guest
thank for ur answer, i would appreciate it!! :)