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[Official] Delidded Club / Guide - Page 1143

post #11421 of 33558
Sorry I added to my post after your reply . My conclusion it is not a vcore / stability issue for the reasons stated.
This chip gets great Cinebench numbers, 10.45 on one run so performance is no lacking and I don't get WHEA errors on my "stable " IBT runs
Edited by martinhal - 2/11/13 at 10:51am
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post #11422 of 33558
I just recently ran IBT on maximum at 5.0 and got about 116, don't know how 140 is possible. It went 20 passes and over 24 hours with Prime95 so I doubt it is unstable
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post #11423 of 33558
Quote:
Originally Posted by VonDutch View Post

yea, we have about the same gflops,
talking to someone over at anandforum, hes talking about my chip maybe a "victim of phantom instability"


"I think your overclock may be a victim of phantom instability. The error checking on the CPU is correcting the instability, but your performance is being hit in the process of it.

My reasoning behind this is that my i5-2500K at 4.4 GHz pushes 120 GFlops. Your CPU appears to be slower, despite the fact that at 5.0 GHz, it should be 15-20% faster due to Ivy Bridge's minor architecture improvements."

other post

"Phantom" instability is exactly as I described. Modern CPUs are equipped with quite robust error correction capability. If your CPUs error correction catches something and corrects it, you won't see errors when running stability tests. It will, however, drop your performance.

There's more to verifying stability than "oh, my PC didn't crash when I ran IBT."


i thought he was talking about WHEA errors ..lol, but he said he didnt mean that,
but i cant remember any of our 5.0ghz 3770K running 140 gflops in ibt..
except the ones with very good ram have a bit higher gflops?

Not sure if this helps, noting that at 5 ghz in Cinebench, I have pretty much the same results as quoted above..but here is a screenshot of 3D Vantage run with some detail info on the results, with FtW 420 noting that usually, you need a 6c/12t to cross the 50k mark...that implies that in the Vantage test (more so than in Cinebench per my experience), HT / # of cores matters...the Cinebench graphics test (OpenGL, as opposed to CPU test) is definitely 1 core once it runs after loading


Edited by Joa3d43 - 2/11/13 at 11:32am
post #11424 of 33558
GFlops always go higher if you turn off the Hyper Threading because physical cores are always faster then logical threads in hyperthreading mode (2 logical ones per 1 physical core with HT on). without HT you basically have 1 logical thread per 1 physical core, hence the boost.
post #11425 of 33558
how much CLP do you apply on the die? I think I made it too thin ... my temps are spread out more unevenly across cores when compared to CLU...
post #11426 of 33558
Quote:
Originally Posted by feniks View Post

how much CLP do you apply on the die? I think I made it too thin ... my temps are spread out more unevenly across cores when compared to CLU...
Try it again with a bit more, I got better temps the second time when I did a little more Ultra on the die and underside of the IHS.
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post #11427 of 33558
...and here is the corresponding Cinebench (all cores / threads) run

post #11428 of 33558
I'm just gonna put this here. i put CLU on die bottom/top of IHS and on my video card gpu. This is delidded. I didn't take any other screen shot of earlier configs.(sorry). AS5 was at about 75 degrees under load. Lidded I would hit high 90's .
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post #11429 of 33558
Quote:
Originally Posted by feniks View Post

how much CLP do you apply on the die? I think I made it too thin ... my temps are spread out more unevenly across cores when compared to CLU...

i did thin layer on the die, then made a print from the die on the inside ihs, and did another thin layer on the inside ihs smile.gif
Quote:
Originally Posted by h2on0 View Post

I'm just gonna put this here. i put CLU on die bottom/top of IHS and on my video card gpu. This is delidded. I didn't take any other screen shot of earlier configs.(sorry). AS5 was at about 75 degrees under load. Lidded I would hit high 90's .

so you went from not delidded 90C to delidded 53C ? smile.gif
Quote:
Originally Posted by Joa3d43 View Post

...and here is the corresponding Cinebench (all cores / threads) run


nice, looks good to me thumb.gif
maybe mine was juuuust a little higher ...LOL tongue.gif
Edited by VonDutch - 2/11/13 at 12:03pm
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post #11430 of 33558
I went from not dellidded in the 90's to delidded with AS5 in the 70's(which I was totally happy about) to delidded with all CLU @ 53. I am actually freaking out with how good my temps are now.

This has to be the most informative/best idea/motivating club on OCN.

THANKYOU!
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