Bitcoin Forum

Two GPU's temp just go 90+ within minutes of mining, and the other one is almost normal.

They are all MSI 6950 Twin Frozr III

I haven't done any overclocking or anything, default win7 i got with the PC.

While mining:
GPU1 temp:93
GPU2 temp:62
GPU3 temp:86
http://i52.tinypic.com/vo23wz.png

Without mining:
GPU1 temp:54
GPU1 temp:43
GPU1 temp:54
http://i55.tinypic.com/ml3x9h.png


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I noticed something while using phoenix mining software.

When i run with DEVICE=0 the GPU #1 temp goes up.
When i run with DEVICE=1 the GPU #3 temp goes up.
When i run with DEVICE=2 the GPU #2 temp goes up.

Is this normal?

<--- knows nothing about hardware.
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And here is the setup (which i don't dare to touch)
http://i53.tinypic.com/25uo1s4.jpg


Is it a configuration thing? or this is normal.

And what's the red line the temp shouldn't go over? 100? 70?

Another little question: What do i use to see the temperature of the CPU?

I searched and got a program but it doesn't support my Sempron140.

I know the board has those answers some where but i looked and searched.

thanks

Normal :)


Some program(ing languge) starts counting at 0, some at 1, that makes the list normal.


That can mean two thing:

• The driver don't assign device numbers, as the way they are arranged physically
• Your cards ain't 100% the same

According those numbers:
If it's an assign disarrange (no problem at all), GPU1 are the above, GPU2 are the lower, and GPU3 are the middle card.
If it's some difference between cards.... Try to rearrange them, and if you got the same numbers, they the same.

90-100c is normal?  ??? ???
I am too scared to run with that lol
please confirm it won't fry

I don't think they will fry, my passive HD 5750s start to lower they max usage % @ 100-105 °C...

Where are your PSU?  ???

Thanks for you answer.

High up

http://i54.tinypic.com/2j2gwew.jpg
Damn crosshair monster, gave me back-pain yesterday.

Try setting up a fan to get the heat away from the cards themselves.

Or, you know, maybe turning up the on-card fans above 56% wouldn't hurt...

I don't see why one GPU temp while mining would be the same as the others temperature while not mining.
It doesn't make sense specially for card #2 not the first one!
Yes thanks, i was thinking of doing that, the air around the GPUs is hot so it could use some air power.

I played with that yeah
It gets noisy  ??? And doesn't affect the temp  :'(

The placement of those 2 fans (as I see in the first picture) are made for if you have the case closed. It pulls heat away from the inside.
So, basically it's not doing anything right now.

Bummer, but good that you tried the obvious first.   ;)

I will try the fan thingy first if it worked it will be great.

If it wasn't enough.... Will the cable extender stuff make it any better?

Edit: I downloaded a program called trixx, down-clocked the memory, and got a fan facing the open case, the temp is now 88.

and i noticed something, two cards are x8 and one is x16, does this have to do anything with my situation?
I was desperate so i pushed all the buttons lol

If turning up the fans doesn't affect the temp, then you have a bad fan.  From 56% to 100% should drop the temp at least 10C, unless of course the fan isn't running at all, which would explain all of your issues.

btw the hottest one is the one on top and the coolest is the one in bottom, does that make sense?


I can hear the fans roaring when up to 100 and silent when being 50, so they are definitely working.

Heat rises, so the top card in a stack will always be the hottest.

I got the one in the middle out and now the two cards are averaging ~70c

Ordered the cable extender thingy and waiting to see how that works.
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thanks all for you help. please accept the little thing i sent your way

I run with fanspeed set at 100%

5970s and 5870s (4 cards in 1 box) they run at 75C

What's the room temperature? it's 29c here

Some serious airflow problem there.

Can you remove the useless 2"1/2 harddisk bay ? It's the airflow from the front fan. Move your harddisk higher above in the 5"1/4 bay.

Also try to clean the cable mess in front of the card.

As for the top card being the hottest, that is expected, heat rises and you have no space between your cards, each card is cooking the card above.

The room temp is around 75F which I guess is like ~20C.

Setup is like this, except I have hte 5970s on the outisde, and the 5870s sandwiched.

System fan speed is set on 20% I believe, I have to change that when I have time.

http://asianisms.com/wp-content/uploads/2011/07/wpid-IMG_20110709_123739.jpg

Received.  Very much appreciated.

I have a 4 x 5830 setup similar to yours.  I can't keep the cards at an acceptable temp when all 4 are sandwiched that way.  I haven't yet tried to use spacers in the cards and I'm playing with side panel fans as well.  I've already turned the rig on it's side (even though the case isn't designed to rest on it's side) to keep the heat from affecting the other cards.

Your only solution may be extenders.

Also, you may want to check out the shrouds around the cards.  On some cards they're decretive and on other cards they force air over the cooling fins.  If they're decretive, you should take them off, as it will improve air flow between the cards.

I only suggested something you had already tried, but thanks, here's something else you might have already tried...  ;)20C = 68F, exactly.  75F is not going to be an exact match, and I'm not going to do the math right now, but if you don't know how to do the math, you can type "convert 75F to C" in Google and it will tell you that it is 23.8888889C (which may or may not be 23.8 repeating rounded up).

Packing that many cards into a small case will always run hot. I doubt you can keep them cool enough to mine 24/7 without doing heat damage to at least one of the cards.

Get a really big fan and blow lots of air directly on/between them. Leave the case sides off.

Thanks for all the tips and comments guys, really appreciated.
I am taking notes and will consider them while building the other setup when i get next month's paycheck ;D

The 5xxx seem to generate less heat than the 6xxx? [yes/no]?

And there is heat pipes in the card, should i run water into them or something? lol

Correct.  Depending on which ones you have, the 6XXX series have multiple GPUs on them.  I'd need specific models to actually assess the statement.  As 5830s run cooler than 5850s, etc.  It's all about the chips and how far you over clock them.


Um, no.  The copper "pipes" conduct heat from the GPU up to the large heatsink fins.  The fans blow over the fins and cool them.  The only option you have for water cooling is if your GPU model has a water cooler built for it.  Then you can remove the entire fan assembly from the card and replace it with a water block.  However, not all GPUs have water blocks designed for them.  Also water blocks add quite a bit of cost to the cards.  It would probably be cheaper just to go with only 3 cards on the board, and get another board.