Boiling kettle noise when running diagnostics test

[JJAM]

Basically, my trash can Mac Pro, unreliable at best with many issues, always emits a sound similar to that of a boiling kettle 2 minutes into running the diagnostics test. Does anyone else experience this? P.S. There appears to be no kettle inside the computer

 

[JJAM]

I stress that this happens every time I run the diagnostics test. Surely this can't be normal?

 

[BrianBaughn]

It that the sound of bubbling, boiling water or is it the whistle sound that some kettles make when boiling?

Our kettle "dings" when it's done.

 

[JJAM]

Just a hissing noise that increases in volume. No bubbling sounds

 

[Gwendolini]

Can you record it via your smartphone and the audio recording app of your choice and then share the audio with us in order to clear up any confusion?

 

[JJAM]

Here it is...

https://soundcloud.com/john-myers-music/mac-pro-diagnostics-test-noise/s-TUUHk

 

[Inutopia]

Just sounds like the fan going full pelt for a time. I'd expect that to be part of the hardware test too.

 

[jayducharme]

Agreed. That's simply the sound of the vortex caused by the fan running full-blast during the diagnostics. Nothing wrong with that.

If you think your computer is unreliable, have to ever brought it to Apple (or an authorized shop) to have it tested? I've had mine for two years and it's been working perfectly.