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Unread 10-09-2003, 05:29 AM   #1
maverick
Cooling Neophyte
 
Join Date: Aug 2003
Location: blacksburg, va
Posts: 11
Going Peltier - Thoughts on my setup?

Ok, I just got my water setup going decently and OF COURSE I'm not satisfied now! Overclocked speeds are decent, but i want more.

At full load my temps are reaching 64C. While that may seem damn high, the Bartons are notorious for outputting a lot of heat (mine is putting out about 140W right now at this overclocked speed/voltage)

The pelt i want to use is from DDen the specs are below:

Maximum operating temp: 125 C
Imax = 24 Amps
Qmax = 226.1 Watts
Vmax = 15.2 Volts
Delta Tmax = >67 (C)
Size = 50mm X 50mm X 3.10mm

I have the copper to make a cold plate and i am ordering the Dow Sealant, dielectric grease, and the neoprene pads.

My questions are as follows:

1. If i am putting out 140 W right now, and getting temps in the 60s, will a 226W pelt just put off so much more heat to my water block that it wouldn't be able to cool the pelt efficiently?

2. If i can find a PSU that can output 24 Amps, will that be sufficient? Ebay has some for approx. 20-40 bucks which is much better than a meanwell's price of over 100 bucks.
ex: http://cgi.ebay.com/ws/eBayISAPI.dll...category=42021
ex: http://cgi.ebay.com/ws/eBayISAPI.dll...category=44949
above psu ratings: http://i5.ebayimg.com/03/i/00/b4/f2/d2_1.JPG
ex: http://cgi.ebay.com/ws/eBayISAPI.dll...&category=3670
above psu ratings: http://pcpartusa.com/2003/powersupply/550CWT/ps3.jpg
OR
ex: http://store.yahoo.com/melcorstore/mes150watpow1.html

3. Do i need to run the pelt at the VMax setting (15.2) or will a 12V input from the 12V rail on the psu be enough?

4. If i my psu can't handle 24 Amps and only outputs 12V will things still be alright? Most psu's i see are about 22Amps.

5. Should I consider anything else in this setup? I could prob. stand to do some more reading and I definitely will do more, but i wanted to guage my knowledge thus far and see if this looks like a "do-able" setup.


Ok, that is about all i can think of right now...if you don't mind, just send me some simple feedback/pointers/cautions, etc...

Thanks guys/gals.

Peace,

J
__________________
CPU: Abit NF7-S rev 2.0__Barton 2500 @ 2224 Mhz @ 1.825 V__Corsair Twin-X XMS3200LL 11-3-3-2__FSB: 235 @ 2.8 V__Chipset Mod @ 1.99 V__ATI AIW 9000 Pro__300W Enermax PSU
Cooling: Homemade Water Cooling__Rio 1400__9x5x2 Heater Core__Air Hockey Fan + Shroud__10 Gallon fish tank

Ambient: 28C
Load: 48C
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