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Author Topic: over heat problem  (Read 1546 times)
newminerr
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July 27, 2011, 08:34:30 AM
 #1

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


Without mining:
GPU1 temp:54
GPU1 temp:43
GPU1 temp:54



____________________________________
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.
____________________________________

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
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PLaci1982
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July 27, 2011, 08:44:05 AM
 #2

Normal Smiley

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?

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

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

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.

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newminerr
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July 27, 2011, 08:49:28 AM
 #3

90-100c is normal?  Huh Huh
I am too scared to run with that lol
please confirm it won't fry
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July 27, 2011, 08:52:24 AM
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90-100c is normal?  Huh Huh
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...

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July 27, 2011, 08:59:10 AM
 #5


Where are your PSU?  Huh

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newminerr
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July 27, 2011, 09:20:28 AM
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Thanks for you answer.

High up

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July 27, 2011, 09:42:44 AM
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Try setting up a fan to get the heat away from the cards themselves.

The00Dustin
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July 27, 2011, 09:48:24 AM
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Or, you know, maybe turning up the on-card fans above 56% wouldn't hurt...
newminerr
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July 27, 2011, 09:55:23 AM
 #9

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!
Try setting up a fan to get the heat away from the cards themselves.
Yes thanks, i was thinking of doing that, the air around the GPUs is hot so it could use some air power.

Or, you know, maybe turning up the on-card fans above 56% wouldn't hurt...
I played with that yeah
It gets noisy  Huh And doesn't affect the temp  Cry
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July 27, 2011, 09:57:44 AM
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Or, you know, maybe turning up the on-card fans above 56% wouldn't hurt...
I played with that yeah
It gets noisy  Huh And doesn't affect the temp  Cry
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.

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July 27, 2011, 09:59:49 AM
 #11

Or, you know, maybe turning up the on-card fans above 56% wouldn't hurt...
I played with that yeah
It gets noisy  Huh And doesn't affect the temp  Cry
Bummer, but good that you tried the obvious first.   Wink
newminerr
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July 27, 2011, 12:45:45 PM
 #12

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?
Bummer, but good that you tried the obvious first.   Wink
I was desperate so i pushed all the buttons lol
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July 27, 2011, 04:09:47 PM
 #13

I played with that yeah
It gets noisy  Huh And doesn't affect the temp  Cry

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.

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newminerr
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July 27, 2011, 04:27:33 PM
 #14

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

I played with that yeah
It gets noisy  Huh And doesn't affect the temp  Cry

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.

I can hear the fans roaring when up to 100 and silent when being 50, so they are definitely working.
Rob P.
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July 31, 2011, 03:05:30 AM
 #15

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

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newminerr
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July 31, 2011, 05:21:16 AM
 #16

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
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July 31, 2011, 05:32:26 AM
 #17

I run with fanspeed set at 100%

5970s and 5870s (4 cards in 1 box) they run at 75C
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July 31, 2011, 06:28:05 AM
 #18

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
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July 31, 2011, 11:43:29 AM
 #19

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.

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July 31, 2011, 05:42:14 PM
 #20

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

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
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