time for some temp monitoring. get a freebie called speedfan and look at the result. may be time for a clean out
If it reaches 80 degrees celcius (or thereabouts), you have problems.
lol yes i have to dismantle my older xps notebook where the gpu is reaching 92C atm lol
No. Does your pc ever randomly shut down?
Could be a power supply unit problem. Do you know your pc model or specifications?
Well, that information would be useful. ;)
Buzz or beep? Either way, it sounds like it's overheating if it's doing that.
Check your hard drive