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View Full Version : Possibly broken pelt?

Hive1984
10-06-2005, 12:28 AM
Morning gents!

Ive not long had this pelt setup now (about a month maybe) and everything has been running smoothly until my better half came along. I have my system setup so when i flick one wall switch it turns on/off the pump and the pelt. I left the machine downloading the cod2 demo and went out to meet a few m8s (only an hour or so) and while i was away my missus used the PC then shut it down, but didnt switch off the wall socket.
When ive switched on the pump/pelt without the PC running for a while it just gets real cold, goes into minus degrees inside of 5 minutes. Problem is it was running for 1/2 and hour to an hour like this and i have no idea what happened!
Suffice to say my CPU temp is 40C atm, a tad warmer than the 8C it was yesturday. Im assuming theres no loose connections as the case hasnt been touched. I did get the pelt 2nd hand though so it might be quite old if that could help???
Marci
10-06-2005, 04:46 AM
Pelt will likely be shafted. Now acting as an insulator to slowly cook your CPU.
Stocky
10-06-2005, 10:27 AM
I would second that, you'll probably have to get a new peltier :(
mvagusta
11-01-2005, 03:09 PM
does this mean peltiers will die if they go below a certain temperature?
n00b 0f l337
11-01-2005, 03:21 PM
Wait... Pelt and pump running? So its just freezing cold plate. Should be fine if your fans were still running on that switch, otherwise may be shafted a tad.
Stocky
11-01-2005, 04:01 PM
does this mean peltiers will die if they go below a certain temperature?

I assume so, as they usually have a manufacturers rating - I think is somewhere near -60 Degrees C. Although that sounds like it may be out...
n00b 0f l337
11-01-2005, 04:04 PM
I don't beleive so. Your pelt isn't going to have come near -60C.
Stocky
11-01-2005, 04:08 PM
It is possible though, with a Dt of 69, and chilled water cooler then it could well do. It's unlikely though, especially under load!
Hive1984
11-07-2005, 12:51 PM
naa it was fine luckily. Curious thing happened thou, the negative wire burnt out! Ive had to solder on a wire to the ones coming of the pelt as theyre not long enough and it burnt thru the connection somehow..... Odd thing is i did the same thing again and the positive wire burnt thru at the connection. Why the hell would that happen if i left it running???

P.S I have the pump and TEC PSU on the same socket that i switch on when i turn on the PC. The fans are connected to the PC PSU as im to lazy to attatch them to the TEC PSU. It is a 120.3 though! So it was just the pelt and pump on, no heatload on the cold side.
Stocky
11-07-2005, 02:28 PM
If the wire is not thick enough to take the current, the wire will act as a resistor. The resistance will cause an increase in temperature which can eventually burn out the wire...
Marci
11-08-2005, 02:13 AM
Yep.... make sure the wire you use is rated for the current the TEC is gonna be pulling down it. Personally, I always use 2-core mains lead.