My PC has been suffering from coil whine for some time, but it's very loud. I have tried multiple PSU's (2x System Power 9 600w, 1x RM650x 2018) which made no difference. Tried multiple GPU's (Palit 2060, Sapphire Pulse 5500 XT, MSI Gaming X 5500 XT), which all had different coil whine but...