I can't even run OCCT with my i7-4790K at stock speed without hearing Daffy making fun of Elmer!

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BigLouis1971

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I was able to overclock my i7-4790K to 4.7 Ghz and I even did a successful Prime95 26.6 test and the highest temperature I got was 82°, voltage was 1.254V, although it was only for 15 minutes.

I'm using Cooler Master Seidon 240M and I gotta say that this cooler is about 10° to 15° cooler than the Seidon 120V so take that into account if you're planning to get either of those. If I would have known that before, I would have gotten the 240M instead of the 120V right from the start and would have saved about $50 from the 120V. My temps are as follows with the Seidon 240M:
1) Idle - 34° to 38°
2) World of tanks - 40° to 55°
3) Firestrike physics test 55° to 65° (rest of the tests range from 38° to 42°)
4) Metro Last Light benchmark - 40° to 53°

Up to this point maybe you're thinking that there's nothing wrong with the system right? You're wrong because every time I run OCCT I always hear Daffy duck making fun of Elmer a few minutes after the test starts. I even tried stock speeds with the i7-4790K and a few minutes after the test starts I hear the quack, quack, quack quack and I'm starting to feel as annoyed as Elmer when Daffy duck starts to make fun of him when he's unable to catch him.

What kind of advise can you give me to make the system work right?
 
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BigLouis1971

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Why do you think I'm not being serious? I mean, everything beside OCCT runs fine, but after just one minute of OCCT test the PC starts quack, quack, quack, quack and that's really annoying. To add to the problem I'm also getting blue screens and I'm increasing the voltage 0.005V at a time to see if I can avoid them. Right now I'm doing a test: 4.7 Ghz OC with 1.268V to see if I can get rid of the blue screens and the quacks at the same time. Anything between 1.254V and 1.268V gave me a blue screen. I'll keep increasing the voltage to se if I can get OCCT to run right and post the results. Thanks for reading!
 
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cilliers

cilliers

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OCCT is synthetic benchmark. Uses absolutely everything the CPU has to offer.
The other benches are game engine bases, hence not 100% CPU utilization.
1.268V should be enough for 4.7GHZ OC.
Your chip might not be that "lucky" after all.
All the evidence suggests so.
Clock it down to 4.5 and put the voltage back at 1.25. It will be just fine.
 
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BigLouis1971

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I got a blue screen with 1.268V and 1.273V as well. Running OCCT of course. Should I run a OCCT test with 4.5 clock and 1.25V?
 
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cilliers

cilliers

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your temps suggest so. try it, let us know.
 
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BigLouis1971

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I got another error, this time after 4 minutes of test. Previously I was getting the errors after one minute of test. What could be the cause of the errors? What should I do now?
 
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BigLouis1971

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Where can I find that in the Bios? My motherboard is the Asus Z97-A/usb 3.1
 
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BigLouis1971

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I changed the fan profiles to PMW, but I can't find anywhere where to set it to aggressive or set the target to 35° so I set it to full speed. My idle temps lowered to about 30° to 32°, but I failed the OCCT test again. I left the voltage to auto and ran another Prime 95 test and the voltage stayed at 1.239V all the time and got temps of 70° to 80°. Prime looks fine, what could be the problem with OCCT?
 
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cilliers

cilliers

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I honestly don't know what the problem with OCCT could be. I usually OC to get better performance in games if I have a CPU that is bottlenecking my GPU. Then I merely use Heavyload as a lock-up test for 2 minutes. Nothing more is really needed, because I know what the limits of my CPU and board are. 2 minutes is all the time it takes to gauge your OC stability by the way. However, I don't need to OC my CPU anymore, because its an i7 3770K and nothing maxes it out, except SVP (smooth video project). What motherboard are you overclocking with, by the way?
 
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BigLouis1971

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I lowered the RAM speed to 1600 mhz and lowered the timings to 7-8-8-24 and finally was able to complete a OCCT stability test for 3 hours. The voltage was at 1.303 and the max temps were 80° to 89°. What could be the cause that I wasn't able to run the i7-4790K even at stock clock with the same RAM at 2400 mhz speed and 10-12-12-31 timings?
 
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BigLouis1971

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Sorry I never mentioned the RAM details before. The RAM default clock is 2400 Mhz and the timings are 10-12-12-31. Just in case that you need more info I'll post the exact model number of the RAM: G.SKILL TridentX Series model F3-2400C10D-16GTX. I also did a 10 minute test with clock speed 1866 and timings 8-9-9-24 and it was completed successfully. The voltage used was 1.303V. Later I'll run a 3 hour test with 1866 speed. I heard of people overclocking the same processor to 4.8 Ghz and RAM running at 2400 mhz. It looks that not all chips are equal.
 
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cilliers

cilliers

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When OC'ing by trial and error (like you're currently doing), we never adjust RAM and CPU frequencies at the same time. Not even mess with timing settings. Keep RAM at absolute default, while perfecting your CPU OC. Once you're satisfied with the CPU OC, then head over to RAM OC. Also noteworthy: I rarely have to mess around with the timings. Usually just boost the RAM mhz and increase the RAM voltage during OC'ing. RAM OC doesn't provide noticeable performance increase in games, unless you have bandwidth stutter, but I haven't come across this phenomenon since 2003, when I OC'ed an Athlon 2100 XP with 512MB DDR2 RAM and a Geforce 4400 Ti on a nForce 2 chipset :) Those were the days....
 
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