Computer freezes after a point making annoying buzzing noise from speakers

[pronay]

Hey guys,

So I've been having this issue for a while now, my PC runs perfectly fine normally but soon as i get doing some intensive tasks after a while the computer freezes on the last screen and there's a really annoying buzz noise from the speakers.

Ive tried reinstalling all my drivers but nothing seemed to fix the issue

My specs:
CPU : AMD A10-7850K
Motherboard : Asrock FM2A88M Extreme4+
RAM : G.Skill RipJawsX 2133Mhz kit (2x4GB)
HDD : 1TB WD Caviar blue
CPU Cooler : Noctua NH-D15
PSU : Xigmatek Tauro 500W 80+ Bronze

My clock settings : 4GHz on the CPU with Voltage at 1.4V
GPU speed 1028Mhz

 

[TwistedFury]

Try removing the overclock and see what happens, that sounds like a complete systems crash.

 

[pronay]

Well ive moved back to my stock clocks. Ive also debugged everything right from my RAMs by checking if they are okay to my network card which i though was causing issues. Everything in the system seems to be fine but im having this issue. I think the GPU drivers are causing the issue, every time i do something GPU intensive the freeze occours so i think im going to roll back drivers and find something that works

 

[TwistedFury]

Try uninstalling the drivers completely then reinstalling and tell me what happens.

 

[pronay]

okay so i did this, i removed the overclock on my CPU and ran prime95 for over 24 hours and had no errors. i thought all was well with the CPU and RAM so i tested my inbuilt GPU. when i ran unigine tropics. everything worked perfect but when i decided to overclock to 4.2 and run prime95 it crashed in less than 15 minutes. So is it an issue with my CPU or is it probably some problem with power? im using 1.4V for the overclock