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i7-3770k Baseline Temps, should I OC?

post #1 of 19
Thread Starter 
I just built a new rig:

Case Corsair Carbide Series 500R
PSU Cooler Master Silent Pro 700W
CPU Intel i7-3770K
Mobo ASRock Z77 Extreme 4
Cooler COOLER MASTER Hyper 212 Evo
SSD Samsung 840 Pro 256G
RAM Crucial Ballistix Tactical 8GB x4

And here are the baseline temps.

Prime95 for 1hr (Max Temp 63c):
Prime95 for 1hr
IntelBurnTest (Max Temp 68c):
IntelBurnTest

Based upon these results how much headroom do you think I have to OC, what do you recommend I push this to for everyday use (I want this CPU to last a while)?
Thank you for your time,
-BassKozz
Edited by basskozz - 6/8/13 at 12:37pm
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post #2 of 19
sure, your temps seem to be fine. i'd overclock until the max CPU temp in prime95 or IBT would reach 85-90c and then stop right there. reason being is because in real world applications + games the CPU temp should be around ~65c and i am fine with those temps. how ever some people are not comfortable with those temps and would rather stay lower than that (which is totally fine), but its just personal reference and I like to get the most out of my CPU smile.gif
post #3 of 19
Thread Starter 
I am nervous about these temps, because my previous OC (5yrs ago), I was able to take a Stock Q6600 (2.4Ghz) under-load with a Max temp of 48c, to 3.6Ghz with a Max temp of 56c...

And now I am already reaching 68c w/out OCing, what happened to CPU's in the past 5yrs that caused these temps to start out so high?

Granted I lapped my previous CPU cooler (Ultra-120 Extreme w/ Scythe S-FLEX SFF21F), maybe that is the trick, is the CM Hyper 212 Evo just not cut out for keeping this CPU running cool, or do I need to LAP it, or have CPU's changed that makes them not OC friendly or run hotter?
Edited by basskozz - 6/8/13 at 12:58pm
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post #4 of 19
the IHS is put on with glue and thermal paste on the die instead of solder. One you can get a better cooler you have an entry level cooler for a chip that gets hot. The chips also don't throttle till 100c+. so stress testing in prime or ibt whatever you chose should be 90c or below and under 1.4v and you are good to go.
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post #5 of 19
As the cores get smaller, the same amount of heat energy has to be dissipated through a smaller and smaller surface area. The result is higher core temperatures. The good news is that Core i CPUs are much better at running 100% reliably even when significantly overclocked. Probably not a good idea to push a CPU this hard 24/7 but nice to know that your CPU won't melt down if you do push it this hard.

http://img27.imageshack.us/img27/6216/torturetest.png

Both the CPU and Intel GPU were running 100% reliably at these un-Godly temperatures. smile.gif
post #6 of 19
1,168v for stock seems a bit high, is it on auto? Have you tried playing with volts?
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post #7 of 19
Thread Starter 
Thank you all for the great feedback, Repped, much appreciated.
Quote:
Originally Posted by enigma7820 View Post

One you can get a better cooler you have an entry level cooler for a chip that gets hot.
Hrm, bummer, I was under the impression the CM Hyper 212 Evo was a good cooler for overclocking. What would you recommend?
Quote:
Originally Posted by mybeat View Post

1,168v for stock seems a bit high, is it on auto? Have you tried playing with volts?
I haven't adjusted any settings in the BIOS yet at all (so I assume it is set to whatever the default setting is, if thats auto, then yes), what should the voltage be at for this CPU running stock?
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post #8 of 19
It depends on the chip, your may need more or less.

I just got myself a 3770k 2 days ago also. I didn't try it at stock at all, just changed it 4.5giggles @ 1.2v and checked if everything appeared fine. After that I tried 4.6giggles but it wanted 1.21v so I set it to that. Now, I'm under water so I don't have to worry about the temps as much as you under air though.

I personally prefer manual mode (over offset) with all C states enabled (AFAIK auto will disable them once you OC).

btw: update your CPU-Z to 1.64.3 just to make sure you have the latest and greatest.
Edited by error-id10t - 6/8/13 at 6:18pm
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post #9 of 19
With that cooler I would shoot for 4.5ghz around 1.2-1.25 volts. Depends on your temps and then the question would be about if you want to delid for better temps. I say yes.. Very happy with my personal results from delidding. 300+MHz gained with reasonable temps. biggrin.gif

But, that's just my opinion..
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post #10 of 19
Thread Starter 
Thank you all for your fantastic feedback, it is greatly appreciated...

I followed the "complete-overclocking-guide-sandy-bridge-ivy-bridge-asrock-edition" guide, set the multiplier to 40 (4ghz), set CPU Core voltage to offset, set the Offset to +0.005v, and set the Turbo Voltage to +0.004v. Here are my results:

Prime95 for 10 minutes | Max Temp: 77c | Max CPU VCore: 1.304v
Prime95 for 10 minutes @ 4ghz
IntelBurnTest for 10 runs | Max Temp: 86c | Max CPU VCore: 1.288v
IntelBurnTest for 10 runs @ 4ghz
Prime95 for 1 hour | Max Temp: 87c | Max CPU VCore: 1.296v
Prime95 for 1 hour @ 4ghz

Couple of questions:
  1. Should I be concerned about the max voltage reaching 1.304v ?
  2. How come the CPU is no longer bursting? In my previous prime95 run I saw the Core Speed exceed the 3500Mhz mark to 3700Mhz, now that I have modified my settings, I don't see it exceeding 4Ghz. Why is that?
  3. Any suggestions on where I should go from here, increase/decrease the multiplier, switch from offset to fixed mode? I'd like to keep the temps under 85c if possible, while I also want to get at least 4Ghz out of it.
Quote:
Originally Posted by error-id10t View Post

btw: update your CPU-Z to 1.64.3 just to make sure you have the latest and greatest.
I downloaded the version I am running directly from the CPUID site today and I don't see that version of CPU-Z on the site: http://www.cpuid.com/softwares/cpu-z/versions-history.html
Is there somewhere else I need to be downloading from?
Quote:
Originally Posted by ep45-ds3l View Post

With that cooler I would shoot for 4.5ghz around 1.2-1.25 volts. Depends on your temps...
This concerns me since I saw 1.304v when using the offset of +0.005v, should I switch to fixed mode and give that a try?
Quote:
Originally Posted by ep45-ds3l View Post

... and then the question would be about if you want to delid for better temps. I say yes..
I think deliding is out of my league unfortunately, I am going to leave the CPU as is (at least for now), I might revisit this decision after I get a couple of months usage out of this new rig...
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