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weird Q6600 core temps - Page 2

post #11 of 26
Quote:
Originally Posted by boydyboyd View Post
Sounds like a good suggestion to me. My lap was pretty half-assed . I can't lap my HSF because i don't have one, water block.
I don't know much at all about water cooling, but I was under the impression you could lap a water block. I've never seen one in person, but from the pictures I've seen online it looks just like the surface of a HSF. Why is it that it can't be lapped?

And I'll add while everyone seems to be suggesting that a 7-10 degree temp difference isn't really a big deal, I beg to differ. While I agree that it won't impede performance and in the grand scheme of things it won't hurt your processor, I don't think one core being 10 degrees higher than another one is necessarily a good thing.

The way most temperature monitoring software works is by showing an overall temp of the highest core. I'm not certain, but I think one or two show an average temp of all cores. Regardless, the point behind buying the best cooling products and maintaining the lowest temperature we can afford to is number one: to lengthen the life of our components under the abuse we put them through, and number two: let's face it, to brag about how low our temps are and how little we had to spend on it.

That being the case, If I have a highest core of 38C with a 3.24 OC, and this other guy brags about 34C on his, but come to find out he's got two cores that are 44C, it's an inaccurate claim. While I understand that that alone isn't a big deal, it's only one side of my argument. The other thing to consider is that if one load temp is considered in the "safe zone" at 66C and the others are around 76C, then you've really got to do a little more work to get those temperatures better. Otherwise, you're over-stressing your components, and you could potentially risk killing them years earlier than necessary.

A few things could be the culprit, and it's not always a good lap job that would fix it. Your problems could range from uneven lapping, bad TIM application (not enough, too much, uneven coverage), one side of your HSF being too loose or too tight, or even your HSF not being centered. Granted this is not an exhaustive list of possibilities. I am hardly the expert to provide that sort of information. That's just what my first things to check would be.

Try taking off your HSF and seeing the pattern of the TIM. Is it completely even? My TRUE needs to be mounted better, so it's not as tight as it should be. As a result, it twists some while mounted. If I were to take it off now, the TIM would look horrible. It would probably be close to bare in the center. But that's what's making my temp as high as it is. My point is, it could be something as simple as that that's keeping your temps uneven. Or if you have a bad lap job, then your TIM pattern could show that. (I think I want to re-lap my TRUE, I kind of did a rush job on that, but took my time on the CPU)

Hopefully no one wants to fight me now. I didn't mean to piss in anyone's Cheerios.
post #12 of 26
Quote:
Originally Posted by hiiyah777 View Post
Hopefully no one wants to fight me now. I didn't mean to piss in anyone's Cheerios.
Haha I love that!

The reason I can't (or don't need to) lap my water block is that it came with a machine engineered perfectly flat/shiny base, and I was told to leave it if it comes like this. But you are right, it is perfectly acceptable to lap a water block, people lap HSFs all the time and get noticeable temperature differences.

When I get the time I may lap it again, perhaps taking longer on each grade, and doing it more slowly. But I am confident that it is flat at the moment (did the razorblade check) however it is not shiny, but I understand that is not the objective.

One more reason I have chosen not to re-lap yet is that it is my motherboard (i think) that is holding back my overclock any further, as anything above 390x9 will not boot at any voltages, even tried 1.5125 CPU and raised the NB and FSB termination voltage.

anywhoo i'm getting off track...oh yeh, i have a cheap assed water block that came with my reserator (which is pretty poor in itself) so the temps probobly lie in the rest of the watercooling system, not in my lapping job (granted it was sub-par though).

Quote:
Originally Posted by Urufu_Shinjiro View Post
Is there a FAQ on this? Which way is "the quad core way"?

EDIT: Nevermind, found it.
Glad You did, cause I looked and couldn't
post #13 of 26
First don't just rush into lapping a CPU, if you do, your warranty goes bye-bye.

Second, be completely sure that is your problem.

I see about 8 degrees between cores, but I know that part of the issue is pressure, I need to do the penny trick on my TRUE to get a little better pressure.
    
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post #14 of 26
Thread Starter 
Wow, already at the 2nd page before I first checked for responses. Thanks for all the help everyone.

So first I plan to check the pattern of my thermal compound, then either reapply it (if that seems to be the problem) or reseat and reapply thermal compound "the quad core way". If that doesn't work, then I guess it means I need to have my HSF lapped.


By the way, can I reseat it without reapplying the thermal compound? And, what is TRUE?
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post #15 of 26
A TRUE is one of the most popular heatsinks used on this website. Stands for Thermalright Ultra-120 Extreme.
post #16 of 26
Quote:
Originally Posted by boydyboyd View Post
Haha I love that!
Thanks! You can add it to your sig, if you want. I would kinda like the popularity.

Quote:
Originally Posted by RPIJG View Post
First don't just rush into lapping a CPU, if you do, your warranty goes bye-bye.
Two things about this ever-so-popular comment, although I will agree that it has its place. First: I bought my CPU OEM, which meant that the second I opened the packaging, it was un-returnable. There is no warranty with OEM, it's a risk we take. And for the decent price cut, I was okay with that. Second: We OVERCLOCK our components. While some manufacturers are gracious like XFX and EVGA, not all are. Thus, overclocking voids the warranty as well.

While I understand the argument that you could overclock a chip, ruin it, then return it and lie, whereas there's no covering up that you lapped it, I still don't feel the risk outweighs the benefits. Just do your homework. You'll only ruin a CPU lapping it if you either overlap or get it wet. I just don't use the soap and water method. I use non-conductive mineral oil. And I follow the instructions and don't lap too much.

Quote:
Originally Posted by RPIJG View Post
I see about 8 degrees between cores, but I know that part of the issue is pressure, I need to do the penny trick on my TRUE to get a little better pressure.
Consider the washer mod as well. I know that penny's got a little copper and is a little conductive, but I like the hole in the middle of the washer that lets the "indention" sit still. Plus, conductivity at that point of the mount yields no results.

Quote:
Originally Posted by aznkorean View Post
So first I plan to check the pattern of my thermal compound, then either reapply it (if that seems to be the problem) or reseat and reapply thermal compound "the quad core way". If that doesn't work, then I guess it means I need to have my HSF lapped.
You can do that, but also keep in mind, if you're going to lap your HSF, it's almost useless without lapping your processor as well. Most processor IHS are uneven to start with, and a lot (not all) of HSF's are pretty uneven. So just lapping one will give some performance increase, but probably not the end result you're looking for.

Quote:
Originally Posted by aznkorean View Post
By the way, can I reseat it without reapplying the thermal compound?
Definitely NOT. It is never a good idea to reseat your HSF without cleaning everything off thoroughly and re-applying. Also, in case you have never cleaned Thermal Paste before (not meaning to insult your intelligence), make sure you use quality chemicals to do it. I suggest picking up an Arctic Silver's ArctiClean kit from Newegg, that's what I use. Otherwise, you can use isopropyl alcohol; MAKING SURE that it has a high concentration of alcohol. Most are like 70%, NEVER use that on electronics! Mine is 91%. That's a good one to use.

Quote:
Originally Posted by aznkorean View Post
And, what is TRUE?
This is a TRUE.

Yes, it IS that huge.


The advantages are that it has six heatpipes versus most others that have four.


It's got a tremendous reputation. However, the one complaint you'll hear across the board is that the TRUE is only TRUEly great once it has been lapped, as well as other small modifications. And this is a legitimate complaint. However, it is one heck of an air-cooling beast!
Edited by hiiyah777 - 5/27/08 at 9:14pm
post #17 of 26
Thread Starter 
Another fast response! Thanks.

Well, hopefully I won't have to lap my CPU and HSF because it just seems like so much trouble. Anyways, I have reapplied thermal compound and I actually used 70% isopropyl alcohol, and there doesn't seem to be a problem with that computer... maybe I shouldn't take my chances with this one.
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post #18 of 26
Quote:
Originally Posted by aznkorean View Post
I have reapplied thermal compound and I actually used 70% isopropyl alcohol, and there doesn't seem to be a problem with that computer... maybe I shouldn't take my chances with this one.
DO NOT use that grade! The problem with low grade alcohol is it is diluted with water, therefore introduces water to your components which can result in eventual rust as well as conductivity. Two things that you do not want on such sensitive components. Do yourself a favor and go spend $0.90 on the right alcohol and don't take that kind of risk with such expensive things. You won't regret it. The other advantage of using higher grade alcohol is it dries quicker. The right alcohol really isn't hard to find. You just have to pay attention. I actually picked up a Kroger brand from my local grocery store, I'm not sure what you have there. It cost me less than a dollar and I've had it for quite a few months now.
post #19 of 26
I have similar problem with q6600 for example full load on 4 core usually like this 55,55,60,60 i lapped my cpu and heatsink twice there are 100 percent flat but i can't fix the gap.
post #20 of 26
There is an inherent amount of core difference from all of these, it goes to the nature of it actually being two dual cores slapped together. The chances are far higher that you will see a difference than not see a difference.
    
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