Hello, my computer freezes with a screeching error noise then goes into a blue screen that says hardware malfunction, NMI: channel check / IOCHK hardware malfunction.
then after i restart my computer the BIOS screen works fine but after that i get a blank/black screen with a blinking underscore in the top left corner. nothing after this, screen remains blank with underscore in top left.
please help! all i can think is that a windows update messed up my computer or my GPU is broken, but i really dont know for sure
sometimes i can turn my computer on with no problems but it eventually freezes again and i repeat the whole process.
sapphire radeon hd 6870
intel i5-2500k 3.30GHz
windows 7 64-bit
8.00 GB memory