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i7-4790K Thermal Throttles on Stock and Overclocking issues

Equilibrium23

Equilibrium23

Equilibrium23

Associate
Joined
17 Jan 2021
Posts
12
Hi,

I have posted the same on reddit and am struggling to get some advice so thought I would post this here as well. Reddit post: https://www.reddit.com/r/overclocking/comments/kystwp/i74790k_overclocking_was_stable_now_isnt/

Essentially I got a used i7-4790K and intended to socket swap it with my old i5-4690K. To cut a long story short (more detail can be seen in the reddit post) the CPU now won't even properly stress test using OCCT Small Data Set 8 Threads - it just instantly thermal throttles to 100 deg. I have manually set the settings in the BIOS to stock and ensured FIXED mode is on (not adaptive). Now I need to stress that I have had this chip run at 4.7GHz at 1.29V with a temp of 68 deg. I am unsure why this is happening, the CMOS has been cleared, optimised defaults loaded before any changes are made. I have been at this for a couple days now so any help would be highly appreciated.

RIG:
i7-4790K
MSI Z97 Gaming 5
Coolermaster 212 Evo w/ Arctic Silver 5 + Noctua Fans
16GB 1333MHz RAM
 
Not delidded no. Was running for a 10 minute stress test on that occasion. Prior to that I had it at 4.7GHz and was running fine and was able to play warzone for numerous hours. It was after that point I stupidly did a GPU OC and that opened a number of issues. I have fixed that GPU and reverted that but still no luck. Seems like every time I attempt an OC, different behaviour is displayed.
 
Voltage at stock is 1.056 as in the image. I have reseated the cooler about 4 times now. Like I said it runs fine, decent temps and then randomly just throttles after being turned off. Could it be the motherboard?
 
So everytime I have reseated the cooler I have replaced the paste as well. the fact that sometimes it works fine and others it doesnt just screams something is not working correctly. Any other ideas?
 
i am guessing that is a desktop app? Ill have a look. ideally I would like to solve this issue without having to spare with anymore cash. So currently we cannot rule out there being a CPU and/or mobo issue here then?
 
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