Already done the ground thing, indeed, I have too good an earth and had to
be very careful with cable length to stop earth loop problems with
connected gear.

Well, the psu is not actually new, spare would have been a better term..
However it seems robust enough, but the fact the previous dead supply did
not have this does point to some of the switching artifacts getting into the
computer.

Brian

--
Brian Gaff....Note, this account does not accept Bcc: email.
graphics are great, but the blind can't hear them
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"Laurence Payne" wrote in message
...
On Mon, 11 Jan 2010 08:49:12 GMT, "Brian Gaff"
wrote:

I had to put a new psu in a machine over the Christmas, and now notice the
bog standard Soundblaster live card seems to be outputting a kind of
gurgling whine which varies and kind of sounds likt e sort of low level
interference you get on some weaker fm stations.
I guess the crud removal in the psu is crap, but the thing is,does anyone
do a kind of gadget you can plug the motherboard power plug into, and get
cleaner power out for the board. after all nothing else has changed, so
it
has to be on the power line to the analogue bits of the card.

Try a different power supply. They're cheap enough, or you could
borrow one from another computer. If it sounds better, try to get a
refund on the noisy unit.

But before you do that, check the ground connection on the mains power
cable.