Newly Built PC - Massively loud whine

[LoosSerine]

Hi,

Just built my first PC (as only ever used Laptops), however, turning it on for a test run, straight away an incredibly loud noise/buzz/whine comes from the system, so much so that the system then shuts down after about 10-15 seconds. Then after a further 10 seconds, it reboots itself and repeats. I got quite worried so turned the whole thing off and even after turning it off, the whine continued so it seems to be either from the GPU or Fan.

The specs are as follows:

CPU: i7 5820k
GPU: EVGA GTX 980Ti FTW
Motherboard: Gigabyte X99 SLI
CPU Cooler: Noctua NH-D15 (i'm only using one fan as the other would be too close to my 24pin connector.
Also 2 Case fans.
Case: Factral Define R5
PSU: Corsair HX1000i

The good thing is, all fans are running when I turn it on so seems at least connectors are fine, but I'm really worried to damage that card. Is there any way I can troubleshoot where all this comes from?

Thanks

Loos

 

[Outlander_04]

try another psu. Chances are its coil or capacitor

Or try that psu in another pc

 

[LoosSerine]

The PSU is fine when I only run 1 rail rather than 2, so is it because I should only use the 1 rather than 2?

 

[Danra]

A PSU with 2 rails is almost always 2 rails connected to one 12 volt rail. Power is split in case there is a catastrophic failure somewhere, so only part of your computer will be trashed.

However, more and more power supplies come with one 12 volt rail only because of the high power required by some people with power eating overclocked CPUs and video cards or two to four video cards. And, in high power requirements a single 12 volt rail is a necessity.

I hope that helps a little. To keep from writing a massive post, visit www.jonnyguru.com and read up on 12 volt rails and power supplies.