Anyone else cranking out 150 watts of heat

[Bender]

My dd waterblock, dd cube and Maxi-Jet pump have been doing quite a nice job keeping my rig cool for the past 4 months. I am currently running my 1400 athlon at 1705 (155 fsb) 2.25v; my max temp under load is 48-49c. Does anyone else have any experience with temps @ 150 watts of heat? I have almost everything I need for a peltier setup accept the peltier. I am concerned that a standard 172 watt pelt just wouldn't cut it under such great load. I know 230 watt pelts exist but were can I find one?

[Diggrr]

I'd suggest contacting a company like melcor www.melcor.com
or TE distributing www.tedist.com

Those don't seem to off the shelf items. Everytime I see something to handle that many watts, it's a multi-pelt configuration.
Melcor is probably your best bet as they manufacture high power chillers and solid state air conditioners. It's a division of Fedders the industrial cooling mfg.

If you're high on the scale of 'handiness', try engineering a dual pelt plate. I often thought of a triangular cold plate using seperate surfaces for each for two pelts and one for the chip. An insulating challenge to say the least, but hey, you could be the first!...:D

Check this thread, not bad at all! http://forums.overclockers.ws/vb/showthread.php?s=&threadid=53086

[Silver]

This is exactly where I am at. Got a bong though and using the same chip am getting 1.745 at 2.18v. The chip will post at 1820 and I have gotten it in at 1.77 for some testing however the temp load for the voltage (2.3) did not allow for much testing. The system could not prevent a gradual heat rise. I figure that (and I could be wrong) I am looking at 142.4w at 2.25 (radiate) in order to get to 1.8 Ghz. I have been thinking on this and have pretty much decided on 2x118 (danger den) as I can get 2 400w psu's relatively cheaply to power these and yet still have 15%-20% headroom on the amperage. Now (and remember I know nothing of pelts) if the power supply is 75% to the tecs that would equal 2x118w=236x.75=177w of potential cooling and give me 34.6w of headroom for thermal inefficiencies, etc.. Now I am not sure of the water cooling setup I would use though. I need to do a little more research on that. The water itself on my present setup never (even under higher voltage) gets up to ambient. Usually it is around seven degrees below ambient and will rise3-4c under load with 2.25 or so volts. I would really like to get away from the bong as my system is stuck in a corner in the living room and a pain to constantly open up.

BTW as the ambient drops, I can overclock farther (normal) and I am fairly certain that around 0c this chip will do 1.8.

Any ideas or input?

[Silver]

One more thing, The 172 I would expect to get 131 +/- out of and that leaves you no headroom. The one factor I do not know (others will though) is as the temps drop so to may the voltage requirement to some extent and even a small drop would have a large effect on the heat load.

Please keep me up on this Bender as you are ahead of me on doing this and I am very interested in your results/setup. :)

[Diggrr]

I don't know Silver, that's a helluva bunch of watts for a little DD cube to remove. Have you thought of a "bucket bong" you could put under/beside the desk? Much harder to tip over.

Wrap it with x-mas paper, and the ol' lady won't know it's there...:D

[Bender]

Originally posted by Diggrr
I don't know Silver, that's a helluva bunch of watts for a little DD cube to remove. Have you thought of a "bucket bong" you could put under/beside the desk? Much harder to tip over.

Wrap it with x-mas paper, and the ol' lady won't know it's there...:D

Your right that is a ton of heat even for a dd cube. I have a second cube so I might try using both. I don't have room in my cas for a second one but an Inwin Q500 would solve that problem.

[Colin]

I think my dual 120 rig would have a problem with that much heat. My suggestion would be dual 172s and perhaps a Big Momma style heater core. A single 172 watt pelt and a 100 watt CPU are stretching the limits of the Cooling Cube.

[Bender]

Before I do anything with pelts I am going to see how my system likes 2 DD cooling cubes. My pump only puts out 300 GPH so I'm not shure how well it will like pumping through the 2 cubes. The only major problem I have right now is were to put the second radiator if I decide to keep it. I could do some serious case mods and fit the second one in there or I could just get an Inwin Q500. If I wanted to fit the second rad in my existing case I would have to relocate the hd and floppy drive. I can put the floppy in a 5 1/4 bay with an adapter and the hd can go anywhere withing reason. I would also be losing one more 5 1/4 bay to the radiator which would give me just enough space for my 2 cd drives and 5 1/4 floppy adapter.

[Stephen Castles]

i wouldn't recommend a DD Cube, they have a huge pressure drop and dont cool as well. Get a heater core, these have massive cooling capacities. You can mod your own, or just buy a Big moma heater cores from www.caseetc.com . I currently run a 1991 ford escort heater core i bought from auto zone for $30, then i bough some fittings for it at home depot, sawed of the inlet/outlet tubes on the core, then glued in my own inlet / outlet fittings. VERY cost effective. Run 1/2 tubing if you can, more water volume moving through the Rad. and block is better. 3/8 is too restictive, especially when dealing with 150 watts of heat.

[Xach]

anyone know where i can get the table for heat produced in watts for athlon XP?

thanks....

[Silver]

I am interested of course in your results. I am preseently using a bong with a 5 gallon resevoir and temps never get to ambient. My present heat load is 133 watts. At 2.3v my heat sink can not keep up with the heat. I am not using a pelt at this time.