Blackscreen while playing CS, RAM problem?

sparrow_ow · October 14, 2021

Hey everyone. I’m posting this for the second time, praying to all gods that someone knows what i should do. To cut the long story short, about 2 weeks ago my PC went black screen while I was playing CS:GO. My mouse and keyboard didn’t respond to any inputs, there was no sound, all I could do was manually turn off the PC with a button. I didn’t pay too much attention, I thought that the game itself was the problem. I verified local files in Steam, 2 files were reinstalled and I kept on playing until same issue happened again. Each time I launched Steam and CS and checked local files, I ended up with 1 or 2 corrupted files. I decided that it was the time to reinstall Windows 10. I reinstalled the whole system, formatted both discs, installed Steam and CS and for about 3-4 days I had no problems whatsoever, but then it came back. I got a BSOD one time with stopcode “Attempted Write To Readonly Memory”. I googled possible solutions for that error and started stress testing my PC. However, after trying AIDA64, OCCT and FurMark i found out that my PC had absolutely no problems running stress tests for 30-60 minutes under a full load. I didn’t get a single error and I couldn’t replicate the same situation which occurred while playing CS. The final thing that I did - I downloaded MemTest86, ran it from a flash drive and finally it showed some errors. I was extremely happy to find what is wrong with my PC and I decided to figure out, which of the RAM sticks was going bad. To my biggest surprise, when I tested both sticks separately, the test showed no errors, and moreover, when I plugged them back in together it showed no errors once again. I am left with no options but to seek for help here. All the drivers on my PC are up-to-date, at least according to Snappy Driver Installer and Driverpack Solution, BIOS is updated as well (as of October 14). I have spent countless hours testing my system, reading forums, googling, etc and I’m exhausted. I will leave my PC specs below (none of them are overclocked):

CPU - Intel Core i5 10600k (Watercooling AeroCool P7-L240)

GPU - Gigabyte RTX 2070 WindForce2x

Motherboard - Gigabyte z490 Gaming X

RAM - 2x8 DDR4 HyperX Fury 2666

1Tb SATA-III WD Caviar Blue

480Gb SSD Crucial BX500

PSU - Super Flower Leadex Silver 650W

Windows 10 version 21H1

If it helps, I play CS on 4:3 stretched, 1280x960, 400 fps locked, all low, 8x MSAA