T.E.C's - Page 9

geoffrey · 19th May 2005, 14:04

Some cheap 550W power supply. When I power the TEC I also messured 12V line. It fals back from 12.4V to 11.7V when powering the TEC, and continues getting lower very smooth.
At a certain point it began to make a weird noise (after 10 minutes), and then I noteced the bad smell.
The power supply isn't dead, but I think it was pretty close

Some reason why voltage keeps on going down is because of bad cooling the power regulators. We had it also with some cheap supply's at school last year. When putting a high load on the supply, the power IC's had to work very hard, so they became very hot. When the IC's get hotter, they will work not so good anymore, resulting in voltages getting lower and lower. When we put a better heatsink on them, the supply worked perfectly. So I think this maybe is the same reason. Air extracted out of the supply feels hot. Going to open it this weekend and maybe add some heatsinks, or get bigger one's.
If that is the problem offcourse, I could be wrong...

Also, if I had better TEC waterblock and do some effort on insulation (didn't do any now) I can get -30°C I think.
But hey, what's the suprise, there isn't much to heat up.

jmke · 19th May 2005, 14:30

that's why PSU are rated for a certain power output in Watt for a predefined temperature, mostly this is 25°C.

19th May 2005, 16:05

You might also want to add a litlle load on the other lines, because some of them need a load before the other lines work optimal.
And how much A is the psu rated on the 12V line ?

geoffrey · 19th May 2005, 16:20

Dunna how much, it has had bad paint job. I don't even know who build it, I just know it's 550W

My 480W Antec has 28A, this cheap 550W must be close to it. The TEC needs 26A, but @ 15,4V, so I'm quite safe in theory

The huge fan for the radiator is on the 5V line so it doesn't make much sound. Good enough for load u think?

easypanic · 25th May 2005, 09:03

I already received my TEC in less then a week from the USA, pretty cheap and fast

.

Must look for PSU now

easypanic · 25th May 2005, 12:03

Ok, hooked up a Q-tec 650W PSU ( triple fan, nice cooling in it

):

Peltier is giving condensation on 5V:

Using this aircooled setup:

1x120mm and 1 boxed cooler ( a64) :

@ 12V this beast dissipates some terrible heat :grin: , almost unable to cool it with air

.

geoffrey · 25th May 2005, 12:07

Lol, offcourse. Heat sink solutions aren't designed for such amount of heat

Here is mine:

easypanic · 25th May 2005, 13:07

Probably this weekend i'll drop it off.

Not sellin', haven't put it on my cpu yet

.

geoffrey · 5th June 2005, 16:14

Just saw a nice pelt setup @ XS.
U just gotta see this:
http://www.xtremesystems.org/forums/...t=64324&page=1

jort · 5th June 2005, 16:17

yeah its pritty hardcore

19th May 2005, 14:04	#81
geoffrey [M] Reviewer Join Date: Nov 2004 Posts: 4,127	Some cheap 550W power supply. When I power the TEC I also messured 12V line. It fals back from 12.4V to 11.7V when powering the TEC, and continues getting lower very smooth. At a certain point it began to make a weird noise (after 10 minutes), and then I noteced the bad smell. The power supply isn't dead, but I think it was pretty close Some reason why voltage keeps on going down is because of bad cooling the power regulators. We had it also with some cheap supply's at school last year. When putting a high load on the supply, the power IC's had to work very hard, so they became very hot. When the IC's get hotter, they will work not so good anymore, resulting in voltages getting lower and lower. When we put a better heatsink on them, the supply worked perfectly. So I think this maybe is the same reason. Air extracted out of the supply feels hot. Going to open it this weekend and maybe add some heatsinks, or get bigger one's. If that is the problem offcourse, I could be wrong... Also, if I had better TEC waterblock and do some effort on insulation (didn't do any now) I can get -30°C I think. But hey, what's the suprise, there isn't much to heat up. __________________

19th May 2005, 14:30	#82
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	that's why PSU are rated for a certain power output in Watt for a predefined temperature, mostly this is 25°C. __________________

19th May 2005, 16:20	#84
geoffrey [M] Reviewer Join Date: Nov 2004 Posts: 4,127	Dunna how much, it has had bad paint job. I don't even know who build it, I just know it's 550W My 480W Antec has 28A, this cheap 550W must be close to it. The TEC needs 26A, but @ 15,4V, so I'm quite safe in theory The huge fan for the radiator is on the 5V line so it doesn't make much sound. Good enough for load u think? __________________

25th May 2005, 09:03	#85
easypanic Member Join Date: Mar 2003 Posts: 1,823	I already received my TEC in less then a week from the USA, pretty cheap and fast . Must look for PSU now __________________ \|^^^^^^^^^^^^^^^^^^\\|\|____ \|....The BEER TRUCK.... \|\|\|\|'""\|""°\_,__ \|___Just for You___l\|\|__\|__\|___\|) _____\| \|(@)(@)""""""""""""\|(@)(@)**\|(@)\|

25th May 2005, 12:03	#86
easypanic Member Join Date: Mar 2003 Posts: 1,823	Ok, hooked up a Q-tec 650W PSU ( triple fan, nice cooling in it ): Peltier is giving condensation on 5V: Using this aircooled setup: 1x120mm and 1 boxed cooler ( a64) : @ 12V this beast dissipates some terrible heat :grin: , almost unable to cool it with air . __________________ \|^^^^^^^^^^^^^^^^^^\\|\|____ \|....The BEER TRUCK.... \|\|\|\|'""\|""°\_,__ \|___Just for You___l\|\|__\|__\|___\|) _____\| \|(@)(@)""""""""""""\|(@)(@)**\|(@)\|

19th May 2005, 16:05	#83
wutske Posts: n/a	You might also want to add a litlle load on the other lines, because some of them need a load before the other lines work optimal. And how much A is the psu rated on the 12V line ?

25th May 2005, 12:07	#87
geoffrey [M] Reviewer Join Date: Nov 2004 Posts: 4,127	Lol, offcourse. Heat sink solutions aren't designed for such amount of heat Here is mine: __________________

25th May 2005, 13:07	#88
easypanic Member Join Date: Mar 2003 Posts: 1,823	Probably this weekend i'll drop it off. Not sellin', haven't put it on my cpu yet . __________________ \|^^^^^^^^^^^^^^^^^^\\|\|____ \|....The BEER TRUCK.... \|\|\|\|'""\|""°\_,__ \|___Just for You___l\|\|__\|__\|___\|) _____\| \|(@)(@)""""""""""""\|(@)(@)**\|(@)\|

5th June 2005, 16:14	#89
geoffrey [M] Reviewer Join Date: Nov 2004 Posts: 4,127	Just saw a nice pelt setup @ XS. U just gotta see this: http://www.xtremesystems.org/forums/...t=64324&page=1 __________________

5th June 2005, 16:17	#90
jort Member Join Date: Jun 2004 Location: mechelen(belgium) Posts: 2,037	yeah its pritty hardcore __________________ watercooling, chilled water,direct phase change, cascade, custom modding