My PC crashes and makes a grinding like noise when i'm playing games

[faio]

Hello everyone:
My PC crashes (sometimes it gives me BSOD) and makes a grinding like noise when i'm playing games in the first few minutes or after a while. and sometimes it makes a loud noise when I start it up. so I have to wait a few minutes and start it again to get rid of the noise and to be able to start up the PC.
Please guys, help me pinpoint the cause of this issue. thank you.

My rig: I5 2500K/ Gtx670/ 8Go of ram/ 4 To HD/ Win7/ Gigabyte P67-DS3-B3.

 

[getochkn]

Grinding noise inside the pc or from the speakers? if it's from the pc, then you need to figure out whats doing that asap. maybe a fan blocked by a cable, and that's stopping a fan from spinning, making a noise, causing overheating, causing bsod's.

 

[zephyrrct]

Download HWMonitor and check all of your temperatures when you start gaming. Are you overclocked at all?

 

[faio]

getochkn; It's inside the PC and it's random, and I checked the fans they are not blocked by any cable.

zephyrrct; the Cpu is at stock speed. and I did check the temperatures yesterday. here is the temperatures after playing 20min in the witcher 3 from HWMonitor:
Motherboard: TMPIN0: from 43C to 55C
TMPIN1: 25C
TMPIN3: from 65C to 33C

CPU:
Core0: from 42C to 76C
Core1: from 42C to 76C
Core2: from 43C to 77C
Core3: from 40C to 75C

GPU:
TMPIN0: from 35C to 74C

 

[faio]

hello, I have found the culprit, it's the Psu that was faulty and it died on me. so I have installed a noname until the time where i can buy a new one. cheers.