Computer screeching..Please Help!

[BlueDreamzZ]

So I built a computer about a week ago or so for gaming & I downloaded Crysis to test it all out. Once I start Crysis up..Something in the computer starts to make a whistling/screeching noise from within..Thinking that maybe it was just the PC working harder to play the game I tried to ignore the sound & get into the game. Once it gets to the loading screen, at about 98% it shuts down the whole PC & restarts about 3 seconds later. I thought it might have been the stock heatsink/thermal paste so I replaced it with a brand new Zalman heatsink. Alas it did not make a difference so now I'm stuck & don't know what to do. Please help me.

MB: Asus P8Z77 V-Pro
CPU: i7 3770k Ivy Bridge
GPU: EVGA GTX780 ACX Cooler
RAM: Corsair Vengeance 8gb x2
HDD: Seagate 1TB
PSU: Thermaltake EVO Blue 2.0 750w
Case: NZXT Apollo Black

 

[Tradesman1]

Do you have a different PSU you could try, or maybe borrow one to try? Sounds like coil whine, normally the PSU or mobo

 

[antoni7]

So I built a computer about a week ago or so for gaming & I downloaded Crysis to test it all out. Once I start Crysis up..Something in the computer starts to make a whistling/screeching noise from within..Thinking that maybe it was just the PC working harder to play the game I tried to ignore the sound & get into the game. Once it gets to the loading screen, at about 98% it shuts down the whole PC & restarts about 3 seconds later. I thought it might have been the stock heatsink/thermal paste so I replaced it with a brand new Zalman heatsink. Alas it did not make a difference so now I'm stuck & don't know what to do. Please help me.

MB: Asus P8Z77 V-Pro
CPU: i7 3770k Ivy Bridge
GPU: EVGA GTX780 ACX Cooler
RAM: Corsair Vengeance 8gb x2
HDD: Seagate 1TB
PSU: Thermaltake EVO Blue 2.0 750w
Case: NZXT Apollo Black

Do you have a different PSU you could try, or maybe borrow one to try? Sounds like coil whine, normally the PSU or mobo

Yep agreed, my PC makes this noise every now and then pretty sure it's just the PSU.