i5 8600k was running 5ghz no problem but after 2 weeks i cant reach more than 4.5ghz without crashing

[lancoha]

Hello
like i said in the title my cpu was running 5ghz no problem but now i cant reach more than 4.5ghz.
my specs:
GPU: Nvidia geforce GTX 1080ti Founders edition
CPU: Intel core i5 8600k (liquidcooled)
RAM: 2x4gb Corsair DDR4 3000mhz
SSD1: 500gb Crucial CT500mx
SSD2: 240gb Kingston SUV400S37240G
MOBO: GIGABYTE Z370P D3
PSU: Corsair 650M
OS: Windows 10 Home 64bit
even as trying in the bios for the already made 4.7ghz OC my computer booted and tha i got a blue screen saying CLOCK_WATCHDOG_TIMEOUT.
now i am running at stable 4.5ghz but i want back my 5ghz. And when i am playing some more cpu intensive games like bf1 pubg... i am getting some lag spikes during the gameplay. Please help me.
Just write something i really want to fix this problem. Every answer is welcome.
Thanks.

 

[jankerson]

There are more negatives to water cooling than positives overall.

Bottom line is if one wants to OC then they need to get a higher end MB.

Like the ones I recommended, the AORUS Z370 Gaming 5 or Gaming 7, either one is MUCH better at OCing over the long run. Much higher end motherboards.


With my AORUS Ultra Gaming I am running my 8700K at 4.7 GHz MCE, that's all that is needed in that system. And my 8700K won't do much more than that anyway at reasonable voltage. Reason why I got an 8086K and just used the 8700K in another system.


Still need to retire the 3rd generation i5 system I have, I still have a i7 7700K and Z270 MB that I will use when that happens. Will do that once Windows 7 reaches EOL.

AORUS Gaming 5 and 7, while definitely better than the Ultra gaming, are still not capable of pushing even nearly as high Overclocks as ASRocks or Asus's highend boards.

They're just more about looks than function.

I can get 5.2 Ghz out of my i7 8086 on my AORUS Gaming 5, could do 5.3, but I haven't tried it since 5.2 takes 1.4V.

And yes the GB boards (5 and 7) can OC just as high as the other boards can, except maybe those $400 jobs.

The AORUS Gaming 5 is one of the better OCing boards out there now.

ASRock and Asus boards are just simply better for overclocking than Gigabyte and Msi boards
Just look at HWBot cpu WRs and see which 2 board brands are the most used ones.

You could do 5.3GHz with a 8086k on your AORUS Gaming 5?
Now look what i can do with my 1700 on my ASRock Taichi:
https://valid.x86.fr/ptymnd

It's the actual MB's not just the brands, ASUS as that MB setup for LN2.

MSI and GB don't have those type of MB's, I just they just don't bother at least on the Z370 platform.

 

[lancoha]

I was trying to play ib gta 5 and i have a lot of lag spikes. My power cobsumption on cpu is between 30 and 60 watts. When i get a lag spikes my cpu load drops to 10 % and than back up to normal40-70% and my cpu is like on 40% and the next sec on 70% its the same with the cpu watts. And when the kag spike happens i get watts drop to 10. Is this normal? Please answer