On Thu, 13 Dec 2007 00:27:42 -0800 (PST), D
wrote:


I know that at least some of that model used a Yate Loon fan
with a sleeve bearing that had short life, if it seems to be
the fan you might leave it unplugged from AC for a few
minutes then open it and lube the fan.


My PSU uses Protechnic, not Yate Loon fan.

Ok, but did you determine where the noise is coming from? I
don't know if the Protechnic fan is sleeve bearing or not,
but it is still a possible suspect.