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[Official] Delidded Club / Guide - Page 1160

post #11591 of 33675
Quote:
Originally Posted by sena View Post

Guys, how safe is to keep CPU at 1.35V everyday, hottest core in prime95 is 80C, avarage is 70-75C?

Thx.

I also noticed i can now run 4.8 GHz, before that was impossible.

yea, like lilchronic said, should be no problem, i run 4.8ghz at 1.420V vcore 24/7,
i think the 1.3-1.45V vcore range can be considered safe..

24H prime at 4.8ghz, 1.420V vcore set in bios..

Quote:
Originally Posted by King4x4 View Post

Had to read over 200 posts... This club is going fast! biggrin.gif

lol yea, somedays i have to read like 10 pages in the morning..
Edited by VonDutch - 2/13/13 at 2:25am
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post #11592 of 33675
Quote:
Originally Posted by lilchronic View Post

ive ran 1.38v volts for about a month now and had no problems so far, if u can keep temps low then your good.. i see ppl here running 1.35 to 1.52v.
heres my 12 hr prime run but had to up up voltage a tad becasue i had a couple whe errors. now im @1.385v and no more whea errors
Thx man, i will test in weekend and i will try to find some sweet spot.

I need every available MHz from cpu, HD 7950 CFX is tooo fast.biggrin.gif


OCN name: Sena
CPU: Intel i5 3570K
on die-TIM: Collaboratoy Liquid Pro
ihs-TIM: Gelid-GC extreme
Mhz gained: 300 MHz so far
OC after delid: 4800 MHz
Temp drops: 20C
CPU-Z validation of max OC: http://valid.canardpc.com/2692045
Edited by sena - 2/13/13 at 2:25am
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post #11593 of 33675
Quote:
Originally Posted by sena View Post

Guys, how safe is to keep CPU at 1.35V everyday, hottest core in prime95 is 80C, avarage is 70-75C?

Thx.

I also noticed i can now run 4.8 GHz, before that was impossible.

congrats on the '4.8' - I ran that for a long time and it is nice, especially when paired with a decent vid GPU. As to 'max safe voltage', that is a bit of a conundrum in this and other threads. Personally, I have NO problem running 1.35v all day, every day. Then again, I use 'speed step' and sleep mode when required - are those still enabled ?

Finally, Intel's excellent 'Extreme Tuning Utility' (for OC) does not let you go beyond 1.525v (+ - a bit, depending on PLL) on 3770 chips. If you are looking for an outside max, ie for validation though other programs let you go higher. I just figure Intel's own utility is probably not a bad guide
post #11594 of 33675
Quote:
Originally Posted by Joa3d43 View Post

congrats on the '4.8' - I ran that for a long time and it is nice, especially when paired with a decent vid GPU. As to 'max safe voltage', that is a bit of a conundrum in this and other threads. Personally, I have NO problem running 1.35v all day, every day. Then again, I use 'speed step' and sleep mode when required - are those still enabled ?

Finally, Intel's excellent 'Extreme Tuning Utility' (for OC) does not let you go beyond 1.525v (+ - a bit, depending on PLL) on 3770 chips. If you are looking for an outside max, ie for validation though other programs let you go higher. I just figure Intel's own utility is probably not a bad guide
Thx man, i am now at 4.8 with about 1.410V in load, i will test more to see about stability, i think i can lower temps more, because i am only using one 140mm fan on my NH-D14.

Yup 4.8 GHz is nice number, its like 5.0 GHz SB(i did comparison with my friend who owns 2500k).
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post #11595 of 33675
Hey guys does anyone know how we'll the gigabyte z77x ud3h reports vcore? I'm hoping it doesn't auto overvolt or under volt the CPU or what's reported in CPUz.
post #11596 of 33675
Probably dead on
post #11597 of 33675
Quote:
Originally Posted by $ilent View Post

Hey guys does anyone know how we'll the gigabyte z77x ud3h reports vcore? I'm hoping it doesn't auto overvolt or under volt the CPU or what's reported in CPUz.
Perfect.
    
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post #11598 of 33675
No problems here with my mATX Gigabyte board
post #11599 of 33675
Quote:
Originally Posted by VonDutch View Post

yea, i never heard of the term "phantom instability" before, so i had to ask whats up with that ..lol
i bet not to many others here did too biggrin.gif

i showed them martinhal's graph, where you can see the gflops should go up liniair,


or like IDC showed with his graph

"You should get a dead-linear curve between clockspeed and Gflops.
Running problem size 43122 with DDR3-1866 ram, Sandy Bridge will give you 28.28 GFlops/GHz and Ivy Bridge will give you 28.42 GFlops/GHz."

another member over there tried, and got this,

"Going by IDC's 28.42 * GHz (4.5) = 127.89... seems about right, I don't think I've ever hit ~128 at 4.5GHz though, 127 yeah, so it's close enough."


if i look at martinhal's graph, the gflops should go up by about 2 per 100mhz,
i think thats about right, im not sure the liniair math will stay the same at very high oc's tho,
if it was correct, a 3770K at 5.0ghz should have about 140 gflops, thats why i asked you guys
about the gflops you have at that speed, because were delidded, its easier to run it ..lol

i see some differences in gflops we have, but most of the time its settings, and ram used that makes the difference,
theres no real standard for gflops, except if its very low, or anything else thats off compared to others,
and most of the time very low gflops has to do with , not having SP1 installed, for the avx instructions etc..

if there is/was a phantom instability then your gflops would get lower with every 100mhz you up your oc,
it could mean theres that phantom instability as far as i understand it now..
that guy claimed he had about 120 gflops at 4.4ghz with a sandy bridge,
so if he would run it at 5.0ghz his gflops should be about 130-135,
if i use my 2 gflops per 100mhz..

your 3570K should have more gflops then a 3770K of course,
if i disable my HT my gflops would be higher,

4.5ghz HT on, 101 gflops


4.5ghz HT off, 119 gflops



so for me 4.5ghz 101 gflops with HT on,
i would end up with about 110 gflops at 5.0ghz,

i dont think i have that phantom instability like the guy said,
my gflops are going up liniair like IDC tried to explain too, im not to worried about it anyways,
learned long time ago in this thread gflops arent very very important, depends on to many factors
that can make differences between them, like i said , only if its of big time compared to others,
you might want to look at it some more..

I will check my gflops and get back to you. Keep in mind I run generic 1600mhz ram though so I may be a touch low. Not sure how much affect it has but I do know all you guys are heavily overclocked in that dept. too
post #11600 of 33675
Quote:
Originally Posted by Hokies83 View Post

Perfect.

Can you elaborate please? smile.gif
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