Do i have a stable 4770k overclock?

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Sohaib

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Hey guys newb overclocker here. So I followed this guide to overclock my 4770k processor:
http://www.overclockers.com/3step-guide-to-overclock-intel-haswell

All I did was to load optimized defaults then set manual voltage of cpu core to 1.2V and changed the multiplier of all core's to 46. Got crash on windows startup screen, then I changed multiplier to 44 and same, got crash on startup screen. So I went back into bios and changed multiplier to 43 and I was finally able to boot into Windows. Ran Aida64 for 8 minutes and here is the result:

wK3hqEz.jpg


Do I have a stable overclock or did I just not ran it long enough? I know people run prime95 for days but I have no patience to keep it running that long. Am I in the safe zone? Should I increase voltage and try to squeeze more? Will my processor ever generate more heat in gaming/video then it had in stability test? Should I try to fine tune my overclock? If so then how? I can't increase multiplier at that voltage and I want to play safe with voltage because I intend to use my processor for reasonable time before upgrading again.

Also finally, one annoyance, although when idle my processor speed steps down to 800mhz but the voltage is constant 1.2V. Is there anyway to fix that?
 
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Well you're not really testing everything with burn test or aida. I'm actually starting to like ROG Realbench since it uses actual programs to fully load the processor and video cards during the stress tests. Plus it has nifty time limits so you can run a test and walk away and if you come back and the stress test is finished it's good. Synthetic tests have their uses but for stability don't bother with them.
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Eximo

Eximo

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If you manually set the voltage it will be constant. You would have to use speed step and a lot of fiddling to get it to do that with an overclock.

1.2volts is lower then maximum stock voltage, so from that perspective this is a decent overclock.

Look into Load Line Calibration, Vin, and a few other things to modify. Just doing the core voltage gives you a rough estimate of what the cores can handle.
 
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Sohaib

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I did try 1.25 actually yesterday, 4.6 GHz gave me a BSOD during startup while 4.5 GHz went all the way into desktop and during loading startup apps it crashed too. I didn't check 4.4 GHz but most probably I will be able to run that but no point of increasing voltage by .05 if all I can squeeze is another 100 MHz. Well I may be able to squeeze little more MHz's if I dial into BCLK Strap and BCLK but currently I am messing with adaptive voltages. I set the voltage to adaptive which is fine and all but as soon as I run AIDA64 the voltage spikes into 1.3+ and give me heat problems.

Also is running one stability test enough or should I try more like Intel Burn Test and prime95 for longer durations?
 
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Sohaib

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Another setback, with adaptive voltage @ 1.2V I got BSOD 2 mins into encoding H.264 video in TMPGENc Video Mastering Works 5.
This seems more complicated then I originally thought. Better go back to default settings for now.
 
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Davil

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Wouldn't use adaptive with prime95 as it will cause the voltages to jump around. Honestly I stay away from adaptive and just use offset. If your temperatures are staying low and you aren't experiencing any bsod's then yes it is stable. I've heard the using rog real bench is a better means of stress testing, but it's up to you.
 
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Sohaib

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I just don't get it, I set 1.2V adaptive voltage in BIOS. Running my processor @ 4.3 GHz. I ran AIDA64 for about 10 minutes and I am stable, with adaptive voltage my voltage spikes to around 1.28 but temperatures keep around 82C. I also ran IntelBurnTest @ high Stress level, although the temps spikes to dangerous high near 96C I am STILL stable and completed the test successfully.
So at this point I would assume I have a stable overclock yet TMPGEnc Video Mastering Works 5 gives me BSOD around 3mins into video encoding. At this point I am thinking all those stress testing applications are useless and doesn't tell the real story other then just pointlessly increasing the temperature and possibly reducing the lifespan of CPU.
Keep in mind my core temps are in higher 60s in TMPGenc but it still BSOD's me EVERYTIME encoding an H.264 video.
Here's an intelburntest success screenshot:
2zKMfbG.jpg


Any help would be highly appreciated.
 
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Davil

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Well you're not really testing everything with burn test or aida. I'm actually starting to like ROG Realbench since it uses actual programs to fully load the processor and video cards during the stress tests. Plus it has nifty time limits so you can run a test and walk away and if you come back and the stress test is finished it's good. Synthetic tests have their uses but for stability don't bother with them.
 
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