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[Official] Ivy Bridge Owners Thread - Page 103

Poll Results: Which Ivy Bridge CPU did you buy?

This is a multiple choice poll
  • 50% of voters (692)
    i5 3570k
  • 43% of voters (586)
    i7 3770k
  • 6% of voters (91)
    Other
1362 Total Votes  
post #1021 of 7362
Got my H100 this morning and got my 3770K to 4.5GHz at 1.305v
Ambient 28C, max load 80C
Really wanted to get 4.6GHz but still wasn't stable at 1.320v so I stopped trying, only changed CPU vCore as I am still a noob.
Using a H100 with Coolermaster Sickleflow fans.
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post #1022 of 7362
How come you didnt try 1.35?
post #1023 of 7362
Quote:
Originally Posted by samwiches View Post

But you can't have temps below ambient. I ran into that myself with my first two IB's. Reinstalling chipset drivers, Intel MEI and all Windows updates should fix it--you should see idle temps in the low/mid 20's.

It is just slope error from intels calibration at just high end. A lot of ivys have it. My room ambients are 24C, so core temps at OCed setting are about 32+C at idle. two of my sensors though (again with neg slope error) read 24C, which is impossible. At lowest power, there is still going to be a 5C gradient from ambient to core, and overlclocked higher than that.

But it is intrinsic to cpu, nothing is going to fix it. Though at load, they tighten up and are more accurate.
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post #1024 of 7362
Hmm welp.. I saw that on my first IB (3770K) after installing on Z68, posted three times for help about it (including a new thread), then finished some Windows updates and the core temps were totally corrected at some point after that.

http://www.overclock.net/t/1250475/3770k-installed-on-p8z68-v-pro-gen3-problem-with-sensors#post_17121040

That is what I was seeing. I'm not sure where I posted my resolution.. some other thread I guess.
Edited by samwiches - 5/11/12 at 11:38am
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post #1025 of 7362
Quote:
Originally Posted by MaFi0s0 View Post

How come you didnt try 1.35?
Because I fear degradation, just failed doing wPrime 1024M so I bumped voltage to 1.315v
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CPUMotherboardGraphicsRAM
Intel Core i7 6700K Asus Z170 Deluxe MSI GTX 980 Ti Gaming Corsair LPX DDR4 4x8GB 2133 MHz 
Hard DriveHard DriveCoolingOS
Samsung 850 Evo M.2 500GB Toshiba DT01ACA300 Noctua NH-D15 Windows 10 Home 
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Duronic DM35V2X1 Verticle Desk Mount Double Mon... 
CPUMotherboardGraphicsRAM
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post #1026 of 7362
1.35 is considered the safe limit.
post #1027 of 7362
Quote:
Originally Posted by samwiches View Post

Hmm welp.. I saw that on my first IB (3770K) after installing on Z68, posted three times for help about it (including a new thread), then finished some Windows updates and the core temps were totally corrected at some point after that.
http://www.overclock.net/t/1250475/3770k-installed-on-p8z68-v-pro-gen3-problem-with-sensors#post_17121040
That is what I was seeing. I'm not sure where I posted my resolution.. some other thread I guess.

What would "resolve" core temp slope error, is 1) turning off speedstep or 2) Overclocking ie increase vcore, so that you force temps high enough where the slope error is less, and cpu no longer reading below ambient, but likely still reading too low.

But tjmax is hard coded into cpu by intel. Calibration is by intel. Nothing you can update is going to change slope error or how temps read from cpu MSR, aside from sending cpu back to intel and having them calibrate at both low end and high end.
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post #1028 of 7362
Tested two i7 3770k L153A673 both. One is decent 4.5 @ 1.16v, 4.7 @ 1.29v but another one is not so good 4.5 @ 1.24v, , 4.6 @ 1.32v and that is max..

I am on z68 gd65 now and CPU needs more volts than on cheap z77 gd43. Bios on z68 is mess so I hope it will be little better with stronger boards. Where are all ES CPUs from reviews, 1.2v an 4.8ghz?? THX Intel for fuc...ing me over..
Edited by Roki977 - 5/11/12 at 12:24pm
post #1029 of 7362
Hi everyone,

I'm new to overclocking, bought a 3570k and started playing with it:

my motherboard : MSI Z68 gd65 g3
cpu: core i5 3570k
cooler: xigmatek aegir

I'm currently running it stable at 4.5@1.17.

However, the cpu z is showing more like 1.5 - 1.65, probably due to v droop.
I tried reaching 4.9 and succeeded (don't remember the voltage) but my temps were around 95c.
Also managed to get 4.6 @ 1.21 but the temps were reaching from 75 - 85 so decided to lower it to 4.5 @ 1.7 and now the max temps are 64 76 73 70.

I have two questions.

1) My board has a v droop setting which I can set between 0-6 but whenever I do that the system doesn't boot at all. It's the same when messing with pll voltage. Does anyone have the same problem?

2) From what I can see in this forum, this is a good chip in terms of core voltage needed to stabilize the clock, however I'm having temperature problems. I know most of you have water cooling but I'm wondering how much difference could a thermal paste have (I applied the one in package with the cooler). Could applying some arctic silver or coolermaster paste help my temps?
post #1030 of 7362
Quote:
Originally Posted by opt33 View Post

Quote:
Originally Posted by samwiches View Post

Hmm welp.. I saw that on my first IB (3770K) after installing on Z68, posted three times for help about it (including a new thread), then finished some Windows updates and the core temps were totally corrected at some point after that.
http://www.overclock.net/t/1250475/3770k-installed-on-p8z68-v-pro-gen3-problem-with-sensors#post_17121040
That is what I was seeing. I'm not sure where I posted my resolution.. some other thread I guess.

What would "resolve" core temp slope error, is 1) turning off speedstep or 2) Overclocking ie increase vcore, so that you force temps high enough where the slope error is less, and cpu no longer reading below ambient, but likely still reading too low.

But tjmax is hard coded into cpu by intel. Calibration is by intel. Nothing you can update is going to change slope error or how temps read from cpu MSR, aside from sending cpu back to intel and having them calibrate at both low end and high end.

Okay, but then my problem wasn't slope error, since that is not fixable, and I got fixed. wink.gif

Wish I could find that post.. I definitely remember feeling stupid for making a thread without checking for the very last Windows updates. Then I edited a post I made in some motherboard thread thanking someone who was trying to help me, cause the low idle temps totally went away. But then I got rid of that chip cause it clocked pretty bad.
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WD Caviar Blue WD Caviar Black NZXT Havik 140 Windows 7 64bit 
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Windows 8 64bit ASUS GD235HZ (GD245HQ) 120Hz Dell OCZ GameXStream 850W 
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