- Joined
- Aug 8, 2001
- Location
- Sweden
I got a 156w 15v TEC that I was thinking of overvolt to 17v. Will it hurt the TEC? And will it bring any improvments in performance?
-
Welcome to Overclockers Forums! Join us to reply in threads, receive reduced ads, and to customize your site experience!
overvolting a TEC?
- Thread starter the_master
- Start date
- Joined
- Oct 21, 2002
- Location
- Clemson, SC
as far as i know it should increase the available cooling power however i cant say wether or not it will hurt your tec... also run a couple calculations to make sure your amps will still be acceptable
- Joined
- Jun 5, 2003
- Location
- TEH INTERNETS
DO NOT OVERVOLT TECs
The little elements will probably explode as they are already fairly high-powered. Lots more volts means that the devices could possibly go into thermal runaway or just short out - leaving your wires pretty hot
The little elements will probably explode as they are already fairly high-powered. Lots more volts means that the devices could possibly go into thermal runaway or just short out - leaving your wires pretty hot
- Joined
- Dec 13, 2001
- Location
- Tulsa, OK
even if the overvolting didnt hurt the tec, you probably wouldnt get any real performance gains from it. i think overvolting would just get you a lot more heat, and not a whole lot more cold, if you know what i mean. i wouldnt expect more than a 1-2 C temp change at best. and the hotside temp would probably rise at least 2 times that. not to mention, its dangerous!
- Joined
- Dec 13, 2001
- Location
- Tulsa, OK
oh, i see. well in that case... try to get some better insulation. what do you have cooling the tec?
- Thread Starter
- #8
sry for the late response but I've been working....
I using an old HS from a compaq I slaughtered a while ago. It gets hot, but it is easyly cooled due to the large size of it...
I have pictures of my now dissassebled prototype.
Well, it did get my beer down to 10'C
http://pr0n.se/~ghalen/pics/peltier/
I using an old HS from a compaq I slaughtered a while ago. It gets hot, but it is easyly cooled due to the large size of it...
I have pictures of my now dissassebled prototype.
Well, it did get my beer down to 10'C
http://pr0n.se/~ghalen/pics/peltier/
- Joined
- Dec 13, 2001
- Location
- Tulsa, OK
if you want better temps, look into some insulation, and possibly a better hsf. that one looks pretty old, and it just might not be up to the job. you can get an sk6 for $10 at www.svc.com now. better cooling would drop your temps some. insulation around the beer and the cold plate would probably make a big difference. good luck. if you build another prototype, be sure to post more pics.
I was wondering this too, I built a power supply that puts out 17v with no load, silvershadow(john channels) told me it should drop when I put a large load on it. I just wanted to make sure I dont fry anything.
glad someone else asked so I didnt have to
glad someone else asked so I didnt have to
- Joined
- Nov 21, 2001
- Location
- North America
the_master said:
TECs work great as long as you manage the temps they see. They typically are assembled with a low melt point solder with bismuth, tin, etc. , so when the TEC internal connections reach that melting point, maybe about 200 - 250 degress F, they fail. That may not relate directly with your cpu temps since the TEC bonded portion is away from the cpu chip. Caveat emptor on that one ... increase a few tenths of a volt at time and see, but it will fail at some point with increased voltage, depending on the rest of your cooling system. My experience is that they will keep going just fine until they melt, which usually happens quickly and unexpectedly. At that point, you will need a new TEC unit and probably a new cpu.
To paraphrase "Dirty Harry", "do you feel lucky?" Good luck (my words!)
KK
- Joined
- Aug 23, 2003
- Location
- behind the wheel
what a cool project!
have you tried lower voltages though? are you sure the heatsink can handle all that heat?
because if it's the heatsink that can't handle the heat, then you might get better temperatures with lower voltages.
have you tried lower voltages though? are you sure the heatsink can handle all that heat?
because if it's the heatsink that can't handle the heat, then you might get better temperatures with lower voltages.
Similar threads
