Is your 450w PSU producing unusual sounds because it isn't suited for your requirements?
Is your 450w PSU producing unusual sounds because it isn't suited for your requirements?
View: https://www.youtube.com/watch?v=5FWXgQSokF4
Ensure it's just the PSU, if it continues to work, initiate an RMA and note the warranty status.
I'm curious if you'll require a power supply over 450w; otherwise, you might not be able to get the same one.