Question Help me look for the noise

to verify if it may be any particular fan;
while the sound is occurring gently press on the center of each fan until it stops.
if the sound stops along with one of them then you've identified the cause.

to identify if it may be coming from a disk;
you can try keeping a finger on the drives and see if there is any hard vibration occurring while the sound happens.
besides that just replacing the drives one at a time and seeing if the sound stops with a particular drive removed.
 
Jan 3, 2023
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I think its the PSU. My GPU fan are not spinning and it shouldnt be the noctua cpu fan. because after listening to it more closly its more on the lower end and its the psu