Thank you Usasma. I've ran Furmark for 20 minutes with the problem hardware, there were no problem. Since then I've replaced the motherboard, CPU, CPU cooler and the PSU, and everything is fine....

Dear All,

since I've posted this I've read some forums on black screen crashes with sound looping, etc. Some people said this might be caused by a failing PSU. My PSU (Corsair builder series...

Disclaimer: I know Windows 10 is a preview edition and I wasn't expecting a fully operational OS (though it seems to be one). I just was hoping installing it might solve some problems I've been...