Silence this computer...

[BoomAM]

Hi.
Im looking at ways to make my computer quieter.
From what i can tell, the PSU is making the most noise. Followed by the occasional vibration from the case sides.
Apart from replacing the PSU, what other ways could i make my computer quieter?

Ive put this in 'Case Central', because the HW & its cooling solutions are relativly quiet anyway. So there must be other things im overlooking thats causing the noise, probably case related.

Thanks in advance all.

 

[BoomAM]

One way to make your system seem quieter is to stay in a server room all day, then when you use your system you think "coo this is quiet!"

Tryed that one. Doesnt make a difference.

CPU not OCed.
The HDDs are none replaceable. I bought them a while back as they offer a good medium between noise & performance. & they're pretty quiet anyway.

tbh, im considering a P180 & a new PSU.
The problem is, is what do i do with my Stacker?

Im not looking for complete silence, because that'd cost a fortune, just quiet enough for it to be comparable to my laptop i suppose. Where i can still hear it, but its not enough for the noise to be intrusive to anything im doing.

 

[BoomAM]

Im gonna have to go with a new PSU regardless.
Are there ways i can quieten the case in general. Reduce the vibrations?
What about those acoustic packs? Worth a buy? I know they dont do much good for general noise, but what about vibrations?