Core i5 4690k stability problems

busterofsouls · Nov 3, 2015

I have just built a new computer with a i5 4690k running it at stock boost clock of 4 ghz. it seems to have stability issues in certain games where it will play for about 30 minutes to an hour then randomly lock up and make the game crash or freeze for a couple seconds then the game pops back up. the chip is running at anywhere between 30c at idle and 50-55c in gta5. ive tried running stability tests overnight with no problems. this system has random lag spikes every couple of seconds also as if it where throttling. which its not because its far under its TDP. still cant find out whats wrong. games that have stability problems, skyrim, gta5, killing floor2, beam ng drive, dont starve.

Mr5oh · Nov 3, 2015

What kind of GPU and PSU are you using?

busterofsouls · Nov 3, 2015

Mr5oh :

Im using a gtx 750 ti sc 2gb card, and a 750w evga supernova b2

lodders · Nov 3, 2015

I had something similar with a PC I built. Ivy Bridge 3570k i5. Hoped to overclock to 4.7Ghz
I was unlucky with the processor lottery, and ended up with a chip that doesn't overclock very well. Even small speed increases required more v core.
With the voltage turned up near to maximum recommended, it passed various stability tests at 4.3Ghz with OK temperatures, but crashed often, even when doing a low power task like browsing the internet.
I ended turning the speed down to 4.1Ghz, where it is now stable and reliable.

NB standard speed for your 4690k is 3.5Ghz, and maximum turbo speed for all 4 cores is 3.7Ghz, so your 4Ghz is an overclock.

busterofsouls · Nov 3, 2015

lodders :

No its not an overclock. my bios has an option to set the auto overclock (turbo boost) and i set it to the minimum boost which is 4ghz. should i try to set it as stock (no boost)?

lodders · Nov 3, 2015

busterofsouls :

I am pretty sure that auto overclock is different to turbo boost.
My golden rule is - never use auto overclock, they tend to apply too much V core.
I suggest you set your PC back to stock, and see if it is stable.
CPU-Z will tell you what speed and what voltage your PC is running at . The 4690k PC I just built ran 3.7Ghz and 1.05V when stress testing on stock settings.
If you want to overclock, do it manually step by step. Have a look at an online guide.

busterofsouls · Nov 3, 2015

lodders :

busterofsouls :

I am pretty sure that auto overclock is different to turbo boost.
My golden rule is - never use auto overclock, they tend to apply too much V core.
I suggest you set your PC back to stock, and see if it is stable.
CPU-Z will tell you what speed and what voltage your PC is running at . The 4690k PC I just built ran 3.7Ghz and 1.05V when stress testing on stock settings.
If you want to overclock, do it manually step by step. Have a look at an online guide.

I have set it back to stock speeds and it seems to have solved the crashing. but im now getting micro studders in game play. most noticeable in skyrim and killing floor 2

lodders · Nov 4, 2015

busterofsouls :

lodders :

I have set it back to stock speeds and it seems to have solved the crashing. but im now getting micro studders in game play. most noticeable in skyrim and killing floor 2

My last suggestion is to update all your drivers using ones from the motherboard and graphic card manufacturers websites - don't download the often expensive driver update assistants, just look for the new drivers for your specific computer parts.
If that doesn't work, then you have probably purchased a faulty component, which should be covered by manufacturers warranty.
Good luck

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