I'm currently experiencing some really frustrating freezes at random intervals, which end up in me having to manually turn my computer off via the power switch since the machine goes completely unresponsive when it happens. I was hoping someone here would be able to help me out, and see if it's an issue that is easily fixed, or one that requires me to replace some hardware.
As of now i've had three separate errors, the third of which i've had once only, which was what actually prompted me to make this thread right now. The first is a random freeze that leaves the computer running, but my monitor no longer receives any signal from the computer, so the screen goes black and the monitors goes into sleep mode. The second just freezes the entire computer. The third one - which happened today for the first time - results in my screen going into one of those blocky messes of random colours as it flashed between that and a black screen, during this time my computer was making some really loud, deep whirring noises too.
It seems to me like it's a GPU issue, so i posted in this section of the forum, but i'm by no means and expert so if this is the wrong section, i apologise! Hopefully someone here can help me out though, so thank you in advance! I'll stick a bit of info below in case it's useful:
OS: Windows 8.1 Pro 64-Bit
GPU: 3072MB ATI AMD Radeon R9 200 / HD 7900 Series (ASUStek Computer Inc)