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What's wrong with my OC on my i7-970 ?

post #1 of 81
Thread Starter 
I've been trying for weeks now to get my system stable, any expert advice to why my system keeps failing me?

The system feels "laggish" and after ~7 hours of prime ( blend ) it fails but IBT for ~50 runs goes on without errors.

Here are my bios settings









( i've tried with 700mV aswell )


( i've tried with vcore +0.160, still doesnt work better. )

Any suggestions?
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post #2 of 81
Your QPI voltage is pretty low, might want to bump that up the the 1.3 range.
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post #3 of 81
Thread Starter 
Quote:
Originally Posted by kschat View Post
Your QPI voltage is pretty low, might want to bump that up the the 1.3 range.
What does the QPI really do? I've run memtest 4 in windows with 12 instances and each having ~900MB, but that doesn't give me any errors. I thought that would "prove" that it wasn't memory related?
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OCZ Vertex 3 120GB Windows 7 Enterprise SyncMaster P2770 Microsoft Ergonomical 4000 
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post #4 of 81
Quote:
Originally Posted by frW View Post
What does the QPI really do? I've run memtest 4 in windows with 12 instances and each having ~900MB, but that doesn't give me any errors. I thought that would "prove" that it wasn't memory related?
QPI is what connects the CPU to the northbridge (X58) and the memory (via the IMC). The rule for QPI is to keep it within .5 of the your RAM voltage. Your memory maybe good but that doesn't mean your QPI voltage is stable yet.
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CORSAIR HX 750W Cooler Master HAF 922 
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Core 2 Duo 2.4Ghz Penryn T8300 Some logical board GMA X3100 4GB (2x2GB) DDR2 667Mhz 
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C300 64GB SATA III, 2x F3 1TB 7200rpm RAID 0 Sony Optiarc 24X DVD/CD Ubuntu 14.04 22" Dell SP2009W 1680x1050 
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CORSAIR HX 750W Cooler Master HAF 922 
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Core 2 Duo 2.4Ghz Penryn T8300 Some logical board GMA X3100 4GB (2x2GB) DDR2 667Mhz 
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post #5 of 81
If you failed at 8 hrs prime, and then increased vcore 1 more notch and failed again, then like kschat said, the next thing I would try would be raising qpi volts. qpi is IMC for one thing, and memtest isnt going to test it.

As for if you system seems lagging, that would be more likely hard drive.
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post #6 of 81
Thread Starter 
Quote:
Originally Posted by opt33 View Post
As for if you system seems lagging, that would be more likely hard drive.
I've got windows on an SSD-drive, shouldn't be lagging. Maybe the drive is going bad?
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Hard DriveOSMonitorKeyboard
OCZ Vertex 3 120GB Windows 7 Enterprise SyncMaster P2770 Microsoft Ergonomical 4000 
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post #7 of 81
On i7 920-930-950 the uncore ratio needs to be at least 2 times the memory multi. I dont know if its the same on 970 but I suggest to set your uncore ratio to 10x and raise your QPI/VTT around 1.28 then retest for stability.

otherwise your settings looks fine.
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post #8 of 81
Thread Starter 
The uncore on 970 needs to be at 1.5x the memory multi. That's what I've heard anyways. I've also heard that uncore over 3.2GHz can be troublesome for the 970..
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CPUMotherboardGraphicsRAM
Intel i7-970 @ 4GHz ASUS Rampage III Black Edition Gigabyte GTX 460 1GB SLI Corsair Vengence LP 24GB 1333Mhz 
Hard DriveOSMonitorKeyboard
OCZ Vertex 3 120GB Windows 7 Enterprise SyncMaster P2770 Microsoft Ergonomical 4000 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7-970 @ 4GHz ASUS Rampage III Black Edition Gigabyte GTX 460 1GB SLI Corsair Vengence LP 24GB 1333Mhz 
Hard DriveOSMonitorKeyboard
OCZ Vertex 3 120GB Windows 7 Enterprise SyncMaster P2770 Microsoft Ergonomical 4000 
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CoolerMaster M850 850w Fractial Design R3 - White Steelseries IKARI Steelseries 
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post #9 of 81
Thread Starter 
Neither 1.28 or 1.30 QPI/VTT helped. Even more unstable now.

Do I go up/down?
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OCZ Vertex 3 120GB Windows 7 Enterprise SyncMaster P2770 Microsoft Ergonomical 4000 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7-970 @ 4GHz ASUS Rampage III Black Edition Gigabyte GTX 460 1GB SLI Corsair Vengence LP 24GB 1333Mhz 
Hard DriveOSMonitorKeyboard
OCZ Vertex 3 120GB Windows 7 Enterprise SyncMaster P2770 Microsoft Ergonomical 4000 
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CoolerMaster M850 850w Fractial Design R3 - White Steelseries IKARI Steelseries 
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post #10 of 81
Set your QPI to 1.35 at the most, but how many hours of small ftts can you pass?
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