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Sudden shutdown while running 3DMark11 on CFX 6970s

post #1 of 6
Thread Starter 
Howdy chaps,
Hopefully this is the right place to seek advice on this sort of issue.
Last night I pulled all of the parts out of my old Cooler Master Ammo 533, moved it into a HAF 932, and added a H50 water block. I'm a bit inexperienced when it comes to building and this is really only my third time messing around with the innards of my rig.

I thought I would give the system a good testing this morning before work and fired up 3DMark 11 to monitor the (hopefully lower) temperatures in the new case. On Test 3 the system shut down entirely, all of a sudden! It started back up flawlessly, so thankfully it appears nothing was damaged.

I also noticed, however, that while running GPUTool, only one of the HD 6970s was showing any activity / temperature increase. Do you suppose these things could be related? I have my crossfire bridge sitting on the innermost rung on the cards themselves and both cards are at least recognized by the Vision Control Center, and it shows that Crossfire is enabled.

Any ideas as to what might be the issue? I had to run off to work afterward, so I wasn't able to mess around with it much more. This is going to be bugging me all day, though, so I figured I'd ask some of the pros
Sham-Rohk
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Sham-Rohk
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post #2 of 6
Hmm sounds like a PSU or video card problem. But since your PSU can handle everything you throw at it, i'd say one of the video cards was overheating.
1155 POWER
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1155 POWER
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AMD Heater
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post #3 of 6
Power supply most likely. But install some older drivers to be sure, and also test each card invidualy.
Sandy love
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Sandy love
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post #4 of 6
Thread Starter 
Hmm...I'm really hoping its not a PSU issue, given the size XD
There's a fair amount of space between the cards and the temperature sensor I have sitting between them didn't reach much above 30C that I noticed.
Sham-Rohk
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Sham-Rohk
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post #5 of 6
I would say ensure that the 6pin/8pin cables are correctly in both graphics cards. You could disconnect everything and switch the slots they are in, then reconnect it and try that. Also, as mentioned above, you could test individually with only 1 card in the system to see if a card is at fault.

Edit: You should also ensure that the crossfire bridge is connected properly, the right way around, and on the correct "rung" as you put it.

Edit 2: oh and make sure the power cables are all secured in the power supply too, I know it sounds silly, but I've made the mistake before when swapping in and out graphics cards to forget the power cables and such.
Edited by Fatal Perfection - 7/22/11 at 5:32am
    
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post #6 of 6
Thread Starter 
Quote:
Originally Posted by Fatal Perfection View Post
I would say ensure that the 6pin/8pin cables are correctly in both graphics cards. You could disconnect everything and switch the slots they are in, then reconnect it and try that. Also, as mentioned above, you could test individually with only 1 card in the system to see if a card is at fault.
I think this is what I'll have to do. I'm pretty sure that I connected those 6/8 pins pretty well but I also had none of the RAM connected when I first tried to fire it up so I wouldn't trust it.

Thanks everybody for your quick replies.

Edit: I just remembered that I may have left the fan setting on Manual in Afterburner while running all of the tests, meaning that the GPU fans may not have been running. At all. Leading to a total shutdown due to the cards overheating and possibly doing damage :/
I'll be able to confirm this in a few hours... hopefully I didn't BBQ my cards.
Edited by evilsearat - 7/22/11 at 8:13am
Sham-Rohk
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X6 1100T BE 3.3ghz ASUS Sabertooth 990FX AM3+ XFX Radeon HD 6970 Crossfire Corsair XMS 16GB 
Hard DriveOSMonitorKeyboard
[W.D.] 1.5 TB Microsoft Windows 7 Ultimate 64Bit Samsung 27" 1920x1080 LCD Logitech G15 Gaming Keyboard 
PowerCase
Cooler Master 1200w Cooler Master HAF 932 
  hide details  
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Sham-Rohk
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X6 1100T BE 3.3ghz ASUS Sabertooth 990FX AM3+ XFX Radeon HD 6970 Crossfire Corsair XMS 16GB 
Hard DriveOSMonitorKeyboard
[W.D.] 1.5 TB Microsoft Windows 7 Ultimate 64Bit Samsung 27" 1920x1080 LCD Logitech G15 Gaming Keyboard 
PowerCase
Cooler Master 1200w Cooler Master HAF 932 
  hide details  
Reply
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