GPU goes 'KRRRRRR..........'

Seems like its either coil whine or a bent fan or a wire maybe sticking into the fan. Which card is it? some brands offer on site immediate replacement so you wont have to wait and other are lax with rma claims
 
Fan bearing issue or one of the fan blades might have crackled or about to break.
Remove the gpu and observe it carefully.
Also, if there are wires around then one of the wires might be touching the fans while spinning check that.
 
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