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i7 2600k uneven core temps - Page 2

post #11 of 17
Thread Starter 
Quote:
Originally Posted by ehume View Post
With one core 10c less hot, you have complaints? I'd say it's

More seriously, I think you're looking at a sensor issue. Just move on.
I don't know, my last CPU was Q6600, and the temps across the cores were very close with it. Just wanted to make sure that the temps are alright before I go OC it. But heck, I'm already OCing it.
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post #12 of 17
Quote:
Originally Posted by khtse View Post
I don't know, my last CPU was Q6600, and the temps across the cores were very close with it. Just wanted to make sure that the temps are alright before I go OC it. But heck, I'm already OCing it.
That you are. Just increase it in small steps and you should be OK.
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post #13 of 17
Thread Starter 
Tried the auto OC on my P8P67 Deluxe. It enthusiastically raised my clock to 5G with a multiplier of 50 and some super high vcore, then a CPU temp warning of 85C popped up, and 10 second later it rebooted. When it got back into Windows it set my multiplier to 49 and said successful. 10 secs into Prime95, BSOD. So much for Asus claiming that their auto oc works well, lol.

Now I'm targeting the lowest Vcore and temp at 4.5G for 7/24 use. If something runs slow at 4.5G, I don't think 5.0G is fast enough for it anyway. So far setting Vcore to 1.29 seems pretty stable (1.28 would fail Prime95 after 30mins).
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post #14 of 17
There is another possibility as well. The fan block or processor cap may be bowed. Check to make sure it is perfectly level across the entire cap it could be off a couple hundred mm's. I had a Corsair V6GT that had a bowed block took me forever to figure it out.

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post #15 of 17
Quote:
Originally Posted by ehume View Post
There you have it: core temp variation is normal; also, sensors vary - they are not bad but are tiny little things, accurate only when close to the shutoff temp, and we must expect variation.

So: intrinsic variation + sensor variation = variation reported temps.
Also different cores work at different rates, therefore some will normally run a little hotter than others. Coz say Core 0 is working a little harder than core 1, even at idle, that core will be a little bit hotter than Core 1.
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post #16 of 17
Quote:
Originally Posted by cl04k3d View Post
One of my cores is always about 10c hotter then the other 3.
I have the Core i7-2600k and core 0 is usually a few degrees (4-8 degrees) colder than the hottest cores (2 & 3). Core 1 falls somewhere in the middle usually. From what I hear, as long as it is no more than 10 degrees or so difference, it's nothing to worry over. You can try an HSF reseat, but then you might make matters worse. As long as your temps aren't exceeding what should be considered a "safe" range for your CPU, I don't think it's worth getting "bunched up" over. The downside is that a single "hot" core can impact your ability to push higher overclock numbers especially when you are relying on core voltage increases (which add more heat to the core).
post #17 of 17
I doubt you'll find a fix for this as it really isn't a huge issue. My Core 0 will run maybe 3-4 degrees hotter than the other cores on idle, but it's the coolest out of all of them on load. I also used the Shin Etsu that came with my h60.
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