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Faulty core Q6600?

post #1 of 9
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I have a Q6600 which is relatively old on my MSI P43T-C51 board (other specs in sig). I've noticed that the core #3 temperature is always lower than the other temps by around ~5 degrees, but sometimes more. In a 10 minute prime95 test, the cores got up to;

Core 1 Test 4, 4000 Lucas-Lehmer iterations of M19174369 using FFT length 1024k
Core 2 Test 6, 4000 Lucas-Lehmer iterations of M11874367 using FFT length 1024k
Core 3 Test 1, 4000 Lucas-Lehmer iterations of M19922945 using FFT length 1024k
Core 4 Test 7, 4000 Lucas-Lehmer iterations of M18474367 using FFT length 1024k

It seemed odd that core 3 didn't even manage 1 Test. I ran it again

Core 3 Test 1, 4000 Lucas-Lehmer iterations of M19922945 using FT length 1024k.

I assume that my 3rd core is faulty? Thanks
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Mah rig 2.1
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post #2 of 9
If your 3rd core was faulty an error should appear in prime95. Something is definitely up though...
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post #3 of 9
Don't worry too much about the one core having a different temp, it is likely a miscalibrated(correct word?) sensor or something like that.

And on the errors, try running the other tests too. My CPU fails on all cores within seconds of starting the blend test, but it can run both the other tests for hours fine, and I've never had a CPU related crash. Generally this means your CPU is fine and stable, so nothing to worry about.

Besides that, your post showed no actual errors. If there's something really wrong prime will throw you an error in the form of "FATAL ERROR: " or something like that.

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post #4 of 9
No, your 3rd core is not faulty. If it were, the CPU wouldn't work at all. It either dies completely (all cores) or not.

What this shows (your post is confusing) is that you have an unstable OC. Which figures since your motherboard is crap for OCing quads.

It's also normal for cores to have different temperatures.
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post #5 of 9
I've had Prime get where it looks stuck on a test, just give it a few hours, it will most likely update. If you can't run blend for more than a few hours without crashing it isn't stable no matter what people want to try to tell you.
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post #6 of 9
Quote:
Originally Posted by biltong View Post
Don't worry too much about the one core having a different temp, it is likely a miscalibrated(correct word?) sensor or something like that.

And on the errors, try running the other tests too. My CPU fails on all cores within seconds of starting the blend test, but it can run both the other tests for hours fine, and I've never had a CPU related crash. Generally this means your CPU is fine and stable, so nothing to worry about.

Besides that, your post showed no actual errors. If there's something really wrong prime will throw you an error in the form of "FATAL ERROR: " or something like that.

If you're passing small and failing blend it's memory or NB fail.
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post #7 of 9
Quote:
Originally Posted by 2thAche View Post
If you're passing small and failing blend it's memory or NB fail.
Memory has passed Memtest many times, and as I said, I've never had an BSODs or crashes that are CPU related.

Sorry for almost threadjacking OP ^_^
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It plays TF2
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LG Nexus 5
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Acer 5745PG
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post #8 of 9
Quote:
Originally Posted by PanicProne View Post
No, your 3rd core is not faulty. If it were, the CPU wouldn't work at all. It either dies completely (all cores) or not.

What this shows (your post is confusing) is that you have an unstable OC. Which figures since your motherboard is crap for OCing quads.

It's also normal for cores to have different temperatures.
This. It's very normal to have cores usage and temperatures different. If you had a faulty core, your system wouldn't be working at all. So don't worry, this is normal.
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post #9 of 9
regarding the temps. its normal.
on my q6600 core 3 is the coolest also by about 5.c
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