Hello!
FSP350-60GLN PSU started peeping after replacing Asus P5W DH DELUXE
with Asus P5K motherboard. Asus probe 2 and Everest show, that the
voltages are fine all the time. How to prevent the peep?
Best regards,
Dima

On Wed, 12 Dec 2007 02:39:42 -0800 (PST), D
wrote:

Hello!
FSP350-60GLN PSU started peeping after replacing Asus P5W DH DELUXE
with Asus P5K motherboard. Asus probe 2 and Everest show, that the
voltages are fine all the time. How to prevent the peep?
Best regards,
Dima

It might help if you elaborated on what "peep" means.

Generally, noise would come from either a failing fan or the
magnetics (transformer or inductors). While it seems more
likely a different load from the hardware change is putting
the magnetics, one of them at a resonant frequency, a change
in load on the 12V rail could also cause a change in fan RPM
which reveals a bearing problem.

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.

If it is something magnetic the resolution is a bit more
complicated, either replacing the noisey part, removing it
and soaking it in lacquer/similar, or trying to apply a
rubber cement or epoxy like coating while the part is still
soldered to the PCB.

Finding the noisey part could prove difficult, or at least
will require some caution. You can stop the fan by simply
sticking a plastic drinking straw into the fan intake area
at the center to stop the fan from rotating, but to find
other parts it woud require opening the PSU and probing
around while it's powered which is something anyone who
would need to be told to do so, probably shouldn't be doing
for safety reasons. It can be done safely, but poking
around in live mains powered power supplies is beyond what
the average end user should be doing.

If the PSU were still under warranty you might see of you
can RMA replace it.

Never heard of a PSU beeping.......usually a mobo beeps to signafy a problem
somwhere.
Are you sure the 12v lines on that PSU can handle the power requirements of
the new mobo???
peter
peter
"D" wrote in message
...
Hello!
FSP350-60GLN PSU started peeping after replacing Asus P5W DH DELUXE
with Asus P5K motherboard. Asus probe 2 and Everest show, that the
voltages are fine all the time. How to prevent the peep?
Best regards,
Dima

On Dec 12, 7:58 pm, kony wrote:
On Wed, 12 Dec 2007 02:39:42 -0800 (PST), D
wrote:

Hello!
FSP350-60GLN PSU started peeping after replacing Asus P5W DH DELUXE
with Asus P5K motherboard. Asus probe 2 and Everest show, that the
voltages are fine all the time. How to prevent the peep?
Best regards,
Dima

It might help if you elaborated on what "peep" means.

Generally, noise would come from either a failing fan or the
magnetics (transformer or inductors). While it seems more
likely a different load from the hardware change is putting
the magnetics, one of them at a resonant frequency, a change
in load on the 12V rail could also cause a change in fan RPM
which reveals a bearing problem.

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.

If it is something magnetic the resolution is a bit more
complicated, either replacing the noisey part, removing it
and soaking it in lacquer/similar, or trying to apply a
rubber cement or epoxy like coating while the part is still
soldered to the PCB.

Finding the noisey part could prove difficult, or at least
will require some caution. You can stop the fan by simply
sticking a plastic drinking straw into the fan intake area
at the center to stop the fan from rotating, but to find
other parts it woud require opening the PSU and probing
around while it's powered which is something anyone who
would need to be told to do so, probably shouldn't be doing
for safety reasons. It can be done safely, but poking
around in live mains powered power supplies is beyond what
the average end user should be doing.

If the PSU were still under warranty you might see of you
can RMA replace it.
Thanks kony for your suggestions!
The noise comes from the magnetics (transformer or inductors). It
continues even after shutting down Windows sometimes.
Best regards,
Dima

On Dec 12, 8:10 pm, "peter" wrote:
Never heard of a PSU beeping.......usually a mobo beeps to signafy a problem
somwhere.
Are you sure the 12v lines on that PSU can handle the power requirements of
the new mobo???
peter
peter"D" wrote in message

...



Hello!
FSP350-60GLN PSU started peeping after replacing Asus P5W DH DELUXE
with Asus P5K motherboard. Asus probe 2 and Everest show, that the
voltages are fine all the time. How to prevent the peep?
Best regards,
Dima- Hide quoted text -

- Show quoted text -
Thanks peter for replying!
I meant a whining or creaking by the peeping.
Why does www.silentpcreview.com write "most powerful Intel 670
(P4-3.8) processor rig with nVidia 6800GT video card drew ~214W DC
from the power supply under full load" on http://www.silentpcreview.com/article292-page4.html
for example?
Best regards,
Dima

On Dec 12, 7:58 pm, kony wrote:
On Wed, 12 Dec 2007 02:39:42 -0800 (PST), D
wrote:

Hello!
FSP350-60GLN PSU started peeping after replacing Asus P5W DH DELUXE
with Asus P5K motherboard. Asus probe 2 and Everest show, that the
voltages are fine all the time. How to prevent the peep?
Best regards,
Dima

It might help if you elaborated on what "peep" means.

Generally, noise would come from either a failing fan or the
magnetics (transformer or inductors). While it seems more
likely a different load from the hardware change is putting
the magnetics, one of them at a resonant frequency, a change
in load on the 12V rail could also cause a change in fan RPM
which reveals a bearing problem.

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.

If it is something magnetic the resolution is a bit more
complicated, either replacing the noisey part, removing it
and soaking it in lacquer/similar, or trying to apply a
rubber cement or epoxy like coating while the part is still
soldered to the PCB.

Finding the noisey part could prove difficult, or at least
will require some caution. You can stop the fan by simply
sticking a plastic drinking straw into the fan intake area
at the center to stop the fan from rotating, but to find
other parts it woud require opening the PSU and probing
around while it's powered which is something anyone who
would need to be told to do so, probably shouldn't be doing
for safety reasons. It can be done safely, but poking
around in live mains powered power supplies is beyond what
the average end user should be doing.

If the PSU were still under warranty you might see of you
can RMA replace it.
My PSU uses Protechnic, not Yate Loon fan.

peter wrote:

Never heard of a PSU beeping.......usually a mobo beeps to signafy a problem
somwhere.
Are you sure the 12v lines on that PSU can handle the power requirements of
the new mobo???

Peep, not beep. The main transformer or an output choke may peep if
the load is just right, usually on the high side.

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.

On Dec 13, 12:12 pm, wrote:
peter wrote:
Never heard of a PSU beeping.......usually a mobo beeps to signafy a problem
somwhere.
Are you sure the 12v lines on that PSU can handle the power requirements of
the new mobo???

Peep, not beep. The main transformer or an output choke may peep if
the load is just right, usually on the high side.
Thanks for replying!
I replaced FSP350-60GLN PSU with Zalman ZM460B-ASP. The Zalman is much
quieter!
Regards,
Dima

On Dec 14, 4:46 am, kony wrote:
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.
Yes, I determined the peeping is coming from the electric circuit, not
from the fan.
The fan makes a different noise from its vibration.
I replaced the FSP350-60GLN with ZALMAN ZM460B-ASP. The Zalman is much
quieter.
Regards,
Dima