gtx 970 stutters in all texture loadings!

[jonomaia123]

I have a gtx 970 galax OC and noticed the stutter behavior in every game when texture loading is needed. and can't really tell what is the problem...
that is what i have already tried:

already tried:
-reset/remove overclock from cpu and gpu
-reinstall games
-check no to "fullscreen optimizations"
-energy options and set cpu to always 100%
-chkdsk
-memtest
-HPET on and off
-uninstalling msi afterburner and VFX audio enhancer.
-fiddling with windows crap (superfetch, telemetry etc)
-disable cache shader
-fresh installed win10. no good
-underclocked and overclocked GPU. no good
-tried RAM in single and dual channel, both sticks alone, higher timmings, xmp on and off. No good
-reconnected the cables and gpu. no good.
-switched PCI slots
-tried messing up with nvidia driver manager and Nv-inspector too.
-i have even bought a new hard drive thinking that it was the problem!

What i can say for sure that, in my case, it ALWAYS OCCURS WHEN LOADING TEXTURES. all the games that don't "load nothing" during gameplay like Assetto Corsa, F1 2017 and others, i have never felt it.
In the other hand, games that demand a lot more loading textures like PUBG, Forza Horizon, and Even Rocket league when a new player is joining the match, the stutters happen!

i am starting to think that it is something related to my gpu..

PC Build: it is overclocked but it is stable (pass in prime95 and IBT AVX) and stable at gaming (deus ex mankind divided, forza horizon 3, Doom, csgo, etc)
cpu: amd fx8370e overclocked to 4.2 max temp reached 62º
RAM: corsair vengeance 2x8gb 1600 ddr3 (tried 1333 and XMP too, same results)
mobo: gigabyte 970a ud3p v2 (max temps registered 65 and 60. cpu socket and nb i believe)
psu: coolermaster gx650
gpu: galax 970x 4gb oc edition

PS: i have made a similar topic before - before i have bought a new HDD thinks that it was the case. but the problem persists...

 

[ko888]

Is it only happening in multi-player online games? Does it happen in single player mode?

 

[jonomaia123]

It does happen in singleplayer games too. tried to play with the internet cable unplugged already.
last test: reducing cpu to 95% in energy options. same results.
tested apm and hpc mode in cpu.
disabled 4 of the 8 cores. still, same results.
disabled some mobo features that weren't in use like serial port and case usb 3.0 + audio port.
tried to reconnect all PSU cables and use a specific cable for each component, including 2 diferent pci to the gpu