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MSI r6970 Lightning Crossfire extremely unstable - Page 2

post #11 of 23
Thread Starter 
Quote:
Originally Posted by Ken1649 View Post
To rule out driver related issues:

1. Remove Afterburner completely.

2. Remove Catalyst + CAP

3. Clean it with Atiman Uninstaller v.6.0.0.msi. Download LINK

Run it with administrator privilege. Some antivirus software will give a false positive. Let it restarts to complete the uninstallation.

4. Install Catalyst 11.9 + CAP1

Don't install preview driver now.

Edit:

Could you please check the 4 temps in the die and VRegs for each card?

Edit 2:

What are the lanes assigned to each card PCIex16, x8, x4 in GPU-Z?

Remove your sound card then check again the bandwitdth both cards are running at.
Both cards are running at x8 in GPU-Z. I'll try removing my sound card and see what happens. I've tried clean installs on drivers so I don't think it's a driver issue

And yes, I've only seen artifacts in furmark so far. However it crashes during 3dmark 11 as well.

Edit: Removing sound card didn't have any affect on GPU-Z's reading of the lanes, still having artifacts/crashing in furmark.
Edited by mkeygmer - 10/13/11 at 7:51pm
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post #12 of 23
Check all the temps in GPU-Z for both cards. Could be one of the temps out of normal.

Edit:

Try to boot and test with only 1 stick of RAM and try every stick.
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post #13 of 23
Thread Starter 
Quote:
Originally Posted by Ken1649 View Post
Check all the temps in GPU-Z for both cards. Could be one of the temps out of normal.

Edit:

Try to boot and test with only 1 stick of RAM and try every stick.
I think you're on to something with checking sensors in GPU-Z. While running furmark I see some funky readings on one card. The temp in GPU Temp #1 is normal, but GPU Temp #2 and #3 are 120+ celcius. All three of those GPU Temp values are normal on the other card.
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post #14 of 23
Quote:
Originally Posted by mkeygmer View Post
I think you're on to something with checking sensors in GPU-Z. While running furmark I see some funky readings on one card. The temp in GPU Temp #1 is normal, but GPU Temp #2 and #3 are 120+ celcius. All three of those GPU Temp values are normal on the other card.
OK those 4 temps are in the same GPU die, so if one of them hits +100°C, BIOS and driver check > throttle down to prevent damage > hence the crash.

Get a good thermal paste MX-3 or MX-4 and reapply on that GPU. Get some extra 0.5mm Thermal Pads just in case you damage them during removal.

Get it from www.frozenCPU.com, the EK 0.5mm pads work pretty well.

Have funs with the paste
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post #15 of 23
Thread Starter 
Quote:
Originally Posted by Ken1649 View Post
OK those 4 temps are in the same GPU die, so if one of them hits +100°C, BIOS and driver check > throttle down to prevent damage > hence the crash.

Get a good thermal paste MX-3 or MX-4 and reapply on that GPU. Get some extra 0.5mm Thermal Pads just in case you damage them during removal.

Get it from www.frozenCPU.com, the EK 0.5mm pads work pretty well.

Have funs with the paste
Thanks for the info. Will MX-2 work?
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post #16 of 23
Quote:
Originally Posted by mkeygmer View Post
Thanks for the info. Will MX-2 work?
Yes, as long as those are not dried-up. Spread thinly with a credit card. Do not over do it and spread outside GPU die. Check for contact surface twice then clean it up then re-apply and put the HS back on.

You will be fine after that.
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post #17 of 23
Thread Starter 
Quote:
Originally Posted by Ken1649 View Post
Yes, as long as those are not dried-up. Spread thinly with a credit card. Do not over do it and spread outside GPU die. Check for contact surface twice then clean it up then re-apply and put the HS back on.

You will be fine after that.
I went ahead and reapplied the paste on both cards. The top card went from 120 celcius on Temp #2 and #3 to 90. The top cards temps read Temp #1: 77 #2: 86 #3: 90. The bottom card is #1: 71.5 #2: 72.5 #3: 74.5. So the top card is still getting a bit warm BUT--- it no longer crashes, which makes me very happy

Thanks a ton for all the help, I didn't realize afterburner wasn't showing me those temps. I might try to do the first card again, since I think I may have used too much paste.

Thanks again!
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post #18 of 23
Still high for 24/7. Order good paste, while waiting increase fan speed.
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post #19 of 23
I got the same issue with my R6970.

After stumbling upon this thread I found that I'm having the same overheating problem.
Attached is the sensors log from GPU-Z while playing Serious Sam 3 for a couple of minutes. (Does it with any game really)
The GPU temps # 2 and 3 are the temps to look for here as they go very high.
When GPU #3 temp hits 120 the screen will freeze or turn black and I have to shutdown the pc.

I reseated the GPU 3 times now and verified that the vram sinks are firmly attached to the metal bracket of the card.
As you can see the GPU #1 temp are all normal so I don't think re-applying TIM on the die will make any difference.

If I understand correctly, this is what the sensors are showing:
Gpu temp #1: die temp
Gpu temp #2: vram temp
Gpu temp #3: shader temp

Also note that I'm running 3 monitors so my idle temps are higher.
I also have an unlocked 6950 that never had issues so I'm sure the issue is with the R6970 and not another component of my pc.

I've heard of this issue before and people would just RMA the card but I still wonder if there's anything I can do about it...

Thanks in advance for your help.

EDIT: removing attachement because it got overwritten with more recent data that don't show the issue accurately. Will do another run and attach it shortly.

EDIT 2: GPU-Z Sensor Log.txt 115k .txt file
Edited by xoroku - 12/28/11 at 6:13pm
post #20 of 23
Thread Starter 
I haven't had any issues with my card since taking Ken1649's advice and reapplying the thermal paste. My temps under load aren't perfect but I don't run 24/7 so I'm not very worried about it, at least it doesn't crash.
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