Hello. I've had these BSOD's for weeks, where i would crash after playing games, screen goes black with stuttering sound and then i get Hyper Transport Sync Flood error. WhoCrashed shows BCCode 124, and bluescreen viewer thatntskrnl.exe is the culprit. I'm not overclocking since I'm not into that, I've tried many sets of drivers, with clean reinstalls using driver sweeper in safe mode, run memtest, cooling is decent i guess, under load, my temps are 50-51, and in idle 25-30, have no ideas left why is this happening, its frustrating. My specs are: MSI 770 G-45 AMD Athlon II X4 630 2.8Ghz Kingston 2x2GB DDR3 1333Mhz ATI HD5770 1GB DDR5 Chieftec CFT-600-14cs 600W this was custom built pc, its around 5 years old, but i had no problems like this till last few weeks. Also, sometimes i have graphic artifacts in games, when there are many lines jumping out of textures, but thats solved as soon as i restart pc, and they are not back for few days.Thx in advance!