Re: Signs that your Power Supply might have bad caps.
Humm well if your OST are the same as OST posted on around here they do fall into the badcap post of baddies
It is possible for caps to fail with out showing physical signs
as to if the OST,s fall into this catacory I dont know
For that matter can the Sanyo's fail and show no outward signs of failure?
If I got the above here right
they are prime candidates to replace but doubt it will fix your problem?
Does depend on what they are being used for on the MB
(seems not the VRM)
So if I got this right it was working ok in its configuration then progressively got worse.
The symptoms are;
its freezing (becoming more often as time goes on)
and its not re booting up.
when it cools off it will reboot
You have replaced the PSU with a new one and its still the same thing happening.
This now rules out the PSU
It does sound like caps,
but I think memory problems might cause similar symptoms like this too?...can anybody please expand on that
The sanyos as above are good caps but its not to say they aren't faulty either.
I am assuming from a look at this MB here
Yours is the same or very similar.
The Sanyos are part of the on board Voltage regulator circuit (VRM to use the term)
The symptoms point to this being the problem area if you had badcaps.
There could well be other causes.
Sometimes there can be issues with CMOS revisions (and CMOS flashes) and also some controller type chips and hardware devices (DVD roms etc)
yep could even be something as simple as a heat sensitive dry joint.
I did search BC forums on the MB type but got very few useful hits on this MB
So unless anyone has some similar experience with this MB and the hardware, then
Since you don't have the gear to check the caps, then the only thing you can do is replace them and see what happens.
I will leave it open to those that do it for a living for comment on this
but if it was me and barring other issues
(which I would be looking at but sounds like you may have already gone down that road)
Id replace the Sanyos and the OST
OST first (doubt its them but wouldn't hurt)
then if its still doing it the Sanyos
and hope that solves it
The other alternative (and maybe a saner) one replace the MB
( not an overly cheap option and a lot of work with reinstall etc
being 939 would limit whats options you have as a new MB)
Wish I could give you a definitive answer that would solve it for you ...I know how thrustrating problems like this can be.
Humm well if your OST are the same as OST posted on around here they do fall into the badcap post of baddies
It is possible for caps to fail with out showing physical signs
as to if the OST,s fall into this catacory I dont know
For that matter can the Sanyo's fail and show no outward signs of failure?
If I got the above here right
they are prime candidates to replace but doubt it will fix your problem?
Does depend on what they are being used for on the MB
(seems not the VRM)
So if I got this right it was working ok in its configuration then progressively got worse.
The symptoms are;
its freezing (becoming more often as time goes on)
and its not re booting up.
when it cools off it will reboot
You have replaced the PSU with a new one and its still the same thing happening.
This now rules out the PSU
It does sound like caps,
but I think memory problems might cause similar symptoms like this too?...can anybody please expand on that

The sanyos as above are good caps but its not to say they aren't faulty either.
I am assuming from a look at this MB here
Yours is the same or very similar.
The Sanyos are part of the on board Voltage regulator circuit (VRM to use the term)
The symptoms point to this being the problem area if you had badcaps.
There could well be other causes.
Sometimes there can be issues with CMOS revisions (and CMOS flashes) and also some controller type chips and hardware devices (DVD roms etc)
yep could even be something as simple as a heat sensitive dry joint.
I did search BC forums on the MB type but got very few useful hits on this MB
So unless anyone has some similar experience with this MB and the hardware, then
Since you don't have the gear to check the caps, then the only thing you can do is replace them and see what happens.
I will leave it open to those that do it for a living for comment on this
but if it was me and barring other issues
(which I would be looking at but sounds like you may have already gone down that road)
Id replace the Sanyos and the OST
OST first (doubt its them but wouldn't hurt)
then if its still doing it the Sanyos
and hope that solves it
The other alternative (and maybe a saner) one replace the MB
( not an overly cheap option and a lot of work with reinstall etc
being 939 would limit whats options you have as a new MB)
Wish I could give you a definitive answer that would solve it for you ...I know how thrustrating problems like this can be.

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