Question Pc constantly crashes to desktop while gaming

[georgikahchiev2000]

Hello, I've had the issue of my pc randomly crashing to the desktop while gaming.I've had the PC for 2 years and the problem has been there since the beginning. It seems to happen on every game however it happens most frequently on more demanding games like open-world (ex Batman Arkham Knight,Witcher 3,Fortnite) but other games crash as well just not as often. Its a prebuild pc so I sent it to the service and I've been told the machine wan under stress test and no hardware issue was found and it's probably software so they just returned it to me.I however severely doubt its something to do with software as I've tried everything to resolve it with no results.
Software things I've tried:
Updating Drivers
Reinstalling Windows 10
Installing newest updates from Windows Update
Updating BIOS
Scanning for Viruses
Changing PSU
crystal disk info says my HDDs health is GOOD

Also recently I've sent the pc again to people who I've been told know their stuff to look into it again. They said they've noticed that the CPU was heating up so they put a cooler. Now the CPU is deff cooler, I can physically feel it when I touch the case, however, the problem still persists. Since I didn't speak with the people that much directly I don't know if that's exactly what they did but they even told the person who did this whole thing for me that it might not work because the configuration was simply poorly made. I even sent them some of the errors I've been getting in the event collector and apparently they've said because the configuration is bad it simply displays software errors. Is there such a thing? Can someone who knows about hardware help me on this one. Is my PC simply poorly made? I lost all hope that this will ever be fixed. The pc runs fine on everything except gaming, and when the games work they work well ( sometimes even heavy games last hours before the crash). So It would be much appreciated if someone can help with this one, I can provide more info if needed I've been trying all sorts of things these last 2 years but no one I speak to seems to even know where the problem is coming from.

UPDATE: I've posted this thread multiple times already so some of my info might be outdated but I think I've made a break! So for the longest time, I didn't understand that I need to run memtest form USB like I was suggested a couple of times before and today I finally did. I got 3 errors. More specifically in pass 2 test 7. I can provide screenshots if needed. Is that enough to conclude the source of my problems was faulty ram all along?
PC specs:
ASUS H110M-CS/C/SI s. 1151 ddr4
Intel I5-7600 3.5ghz/6MB/BOX/LGA1151
J&A 8GB DDR4 2133Mhz
TOSHIBA 1TB DT01ACA100 3.5 32MB SATA 3
Fortron FSP SP-400A PSU 120mm
ASUS DUAL GTX 1060 6GB GDDR5

 

[PC Tailor]

I got 3 errors. More specifically in pass 2 test 7. I can provide screenshots if needed. Is that enough to conclude the source of my problems was faulty ram all along?

The only acceptable amount of errors on a memtest is 0. Anything above is an immediate RMA for me. However this does not GUARANTEE that the RAM is causing your issue, simply that the RAM is probably faulty. Typically I would expect faulty RAM to cause BSOD, shutdowns, and much more odd symptoms, but frankly, it can cause anything, including CTD.

There is no way of knowing if the RAM is indeed causing your problem until you replace them, however the fact that 3 errors have been encountered, would indicate to me that they do need replacing regardless. Any good quality RAM manufacturer should have lifetime warranty on RAM modules.