need massive help with tec

[fyre182]

i have a 72-95 watt tec it can range depending on the voltage applied to it

and a 80 watt tec on a mcw50-t and a

580 watt demon psu from powmax

http://www.powmax.com for specific numbers on the psu

and I have a 350 watt psu and a 300 watt psu

I was wondering wether I could run both tec's on 2 diffrent 5 v rails from the 580 watt psu

I am running a 3.0 ghz p4 a 9800 pro 128 mb and 1 hard drive 7200 rpm and 1 cd rom drive and 1 floppy and 3 80 mm fans and 2 120 mm fans

I was wodnering if i could run them all off of the 580 watt psu from powmax
but if not i could run them off of one of the other psu's but then hwo would i get the wires through the pci slots in the back *the power blugs.

Also would hte 92 watt peltier be enough to cool the 3.0c ghz p4
it is not a prescott it is a northwood model with 800 mhz fsb i have looked up the statistics at intel.com and i believe it generates somewhere around 80 watts of heat at highest load. Also if it is enough to cool it how much? would it decrease the temperatures?

[Groth]

What are the voltage and amperage spec's for your TECs?

No, a 92 watt TEC is not enough to cool a 80 CPU. Generally you want a TEC with a Qmax of two or three times your expected heatload.

[fyre182]

15 volts 8 amps for the pelts

it states that i have 40 amps on my 5 volt rail that is around a 16 amp reduction the rest of my stuff vid etc. shouldnt need that many amps right? but if you say that the 92 watt pelt is nto enough to cool a 80 watt load processor. is it still advisable to put it on? seeing as how it should at least be a couple degrees cooler. Which is still not too bad at all. I dont think my powersupply can support too many more tecs that is why i am scared of increasing the wattage of the other tec. a 92 watt tec should be able to drop a couple degrees on the processor ? around a 5 degree reductionr ight? im just rambling now....or is it just a complete waste. i mean even with a 5 degree reduction im fine with it. sorta? as long as everything runs.5 degrees seems good. But then the question arises of wether its just better to plain water cool it if i only get a 5 degree reduction water in itself should give me a 10 degree reduction all this is versus air.

Or does the temp reduction bundle together ? as in if i put the tec on it would give me a 15 degree reduction because if its like that then....i would definately do it. Ok im confused SOMEONE PLEASEEE answer my questions if you have questions and have trouble understanding what i said leave a message and i will gladly explain it.

[Groth]

First off, running a 15V, 92W TEC at 5V will give you about 30 watts of cooling power. Undervolting a pelt is good for efficency, but you have to have plenty of extra cooling watts.

Running a TEC near its maximum heat transport ability (for example, pulling 80W across a 92W unit), means that the cold side will only be a couple of degrees cooler than the hot. In the meantime, at the hot side you have all the heat you've moved (80 watts) plus the power the TEC has used (15V times 8A = 120 watts). To see a benefit, your TEC waterblock would have to cool 200W as well as a regular waterblock handles 80W; ain't gonna happen.

[Herr Montag]

Ditto what Groth said. To cool your processor you need something closer to the 150-200W mark. The problem is that a Peltier's heat pumping is rated at 0 degC temperature difference. You don't really get impressive cooling unless you are pumping about half the rated load. If you can get your hands on a 200W Peltier, a good waterblock & radiator will send an 80W processor down around 15°C. You will need a good better radiator though.