Before anything, here are my specs (brand new components) :
- I7 7820x
- NZXT Kraken X62
- Asus X299 Strix-E Gaming
- Asus 1080 Ti OC
- Corsair Vengeance 32Gb (4x8) 3000Mhz CAS 15
- Samsung 960 evo 250go
- Seagate Barracuda Pro 4 To
- WD Blue 2 To
- Corsair HX750
- Windows 10 Home
- Acer Predator 1440p 165hz
So the problem is that I have stuttering in every games and some benchmarks with graphics like OCCT and Unigine Heaven, but in a different frequency and intensity (unplayable on some BF1 maps like Amiens, big freezes on Op Wildlands and some light to moderate stutters in other games (AC Origins, CSGO, Fortnite...)
I have pretty decent temperatures both when stock and light OC (4.5GHz All Cores with 1.100V and it's really stable, I tried to put more voltage but it hasn't change anything regarding the stuttering)
However, as soon as I put 1.2/1.25V my temperatures jump to 90ºC when stress tests like CPU-Z or Cinebench and to 100+ with Prime95 small ffts test (I stopped instantly) I don't know if that's normal, I reinstalled the AIO with some Kryonaut but temps are the same that's why I did a safe OC with 1.1V and I never go over 77/78ºC on CPUZ/Cinebench)
I also have good scores in both CPU and GPU benchmarks.
The interesting thing now is that I found out that by disabling the turbo boost in the bios (so the cpu clocks won't go over 3.6 Ghz), the stuttering completly disappeared in every game (except CSGO which feels choppy but I believe it's because 3.6 GHz is too low for this game at 144+Hz). Anyway disabling turbo boost is not a long term solution for me, because for a 600 dollars CPU, I expect more than 3.6 GHz
Here is a list of what things i tried but didn't fix the issue :
- I updated the BIOS / and reset it
- I tried each ram stick one by one on each slot (i also did the windows memory diagnostic and there was no error)
- I tried to put the GPU on the other PCI slot, and I put my old fully fonctionnal GTX 770 -> so GPU is ok
- It's not the Windows Creators Update like I read on the internet because I tried with the Anniversary version
- Of course I reinstalled windows, all the motherboard and GPU drivers installed on their latest version
- I did a full format of the HDDs and i tried to reinstall the games on the WD Blue -> so HDDs are ok
- I tried to put my pc alone on another wall electrical outlet (sorry if my english is wrong)
- I tried both DisplayPort and HDMI cables, lowering screen resolution and refresh rate, and disabling Gsync, Vsync etc
- I was on wifi, I tried with an ethernet cable
- I disabled the screen OC (165Hz) to try with 144 Hz
- (I may have tried a lot of other things but i don't remember everything)
One more thing ; I sent back the PC to my retailor so that they can test it, but they just told me that they didn't encounter the problem, but I suspect them to try to avoid any replacement or they botched the diagnosis, but is it possible that my environment could create this problem ? Knowing that it is the same setup as theirs except the screen, i mean i never had this kind of problem with my previous pc or with anything.
I'm really not an expert but to me it looks a lot like a CPU issue (even tho the intel processor diagnostic tool didn't detect any issue) but I don't know what to try now that's why I'm writing to you people if you have some clues of what's going on.
Thank you very much for reading me, have a great day !