ARGH! Power Supply or Board blown up?

[JeDi[Sh3eP]]

hey all

tonight. after ages of working beautifully.
minus a few probs with my graphics card being too powerful to run
older games.

i believe either my board or my psu has carked it

600w SHAW PSU picked up from MSY, box hill.
admittedly it was el cheap. but it was purchased about 8 - 10 weeks
ago.
if that.

now i don't believe my system wouldve been dragging much on the psu.
i can definitely smell something inside the box that isnt right.

but yeah playing S.T.A.L.K.E.R earlier... and had been doing so for a
good 2 hours.
then all of a sudden. power goes out. first assumption was a fuse in
the house must have blown
yet everything else plugged into that power board was fine and
working.
monitor, amp, sub woofer.

i look inside the case. the little green light is gone
now im paranoid the psu doing this may have destroyed my motherboard
(asus m2n-e sli).
thankfully all of this is still under warranty.
seeing as i got most the parts in early september.
still not too cheery right now.

any reasons this could have happened?
other than the obvious
"cheap power supplies are cheap for a reason" answer.

thanks for your help in advance.

 

[Paul]

hey all

tonight. after ages of working beautifully.
minus a few probs with my graphics card being too powerful to run
older games.

i believe either my board or my psu has carked it

600w SHAW PSU picked up from MSY, box hill.
admittedly it was el cheap. but it was purchased about 8 - 10 weeks
ago.
if that.

now i don't believe my system wouldve been dragging much on the psu.
i can definitely smell something inside the box that isnt right.

but yeah playing S.T.A.L.K.E.R earlier... and had been doing so for a
good 2 hours.
then all of a sudden. power goes out. first assumption was a fuse in
the house must have blown
yet everything else plugged into that power board was fine and
working.
monitor, amp, sub woofer.

i look inside the case. the little green light is gone
now im paranoid the psu doing this may have destroyed my motherboard
(asus m2n-e sli).
thankfully all of this is still under warranty.
seeing as i got most the parts in early september.
still not too cheery right now.

any reasons this could have happened?
other than the obvious
"cheap power supplies are cheap for a reason" answer.

thanks for your help in advance.

No green light on the motherboard, means no +5VSB is coming from the
power supply. With no +5VSB flowing, the motherboard cannot send the
PS_ON# signal to the power supply to turn it on.

It sounds like a power supply failure. It could be the main fuse inside
the power supply blew. And the fuse would only blow, if something
significant inside the supply was damaged. No, you don't need to open
it up and play around Stay out of there.

Move up the quality ladder this time. No more $25 600W power supplies

For an amusing read, try this thread. Viewing this thread directly
from their web site, no longer works, which is why I have to point
you to this archived copy. As for the list of "Unscrupulous", expect
that list to be constantly growing - changing your product name is
an easy way to slither away from a bad reputation.

http://web.archive.org/web/20060110042352/http://xtremesystems.org/forums/showthread.php?t=56231

Paul

 

[kony]

any reasons this could have happened?
other than the obvious
"cheap power supplies are cheap for a reason" answer.

thanks for your help in advance.

If you subtract the obvious answer, what's left to consider?
People don't pay a lot more for fun or vanity (in most
cases?), a PSU is a pretty boring component but nontheless
important.

I'd suspect your high voltage (chopper) transistor(s) blew
out. It's not likely worth repairing, at least not for
reuse in a system exceeding it's designed (true) capacity.

 

[DaveW]

Cheap is cheap... I would start diagnosing by replacing the PSU with a
known working, Good Quality PSU and see if that solves the problem.

 

[wasbit]

Paul wrote :

http://web.archive.org/web/20060110042352/http://xtremesystems.org/forums/showthread.php?t=56231

has probably morphed into http://www.xtremesystems.org/forums/showthread.php?t=108088

 

[Paul]

Paul wrote :


has probably morphed into http://www.xtremesystems.org/forums/showthread.php?t=108088

Bookmarked, and thanks

I see the subject remains as controversial as ever.

Paul

 

[JeDi[Sh3eP]]

No green light on the motherboard, means no +5VSB is coming from the
power supply. With no +5VSB flowing, the motherboard cannot send the
PS_ON# signal to the power supply to turn it on.

It sounds like a power supply failure. It could be the main fuse inside
the power supply blew. And the fuse would only blow, if something
significant inside the supply was damaged. No, you don't need to open
it up and play around Stay out of there.

Move up the quality ladder this time. No more $25 600W power supplies

For an amusing read, try this thread. Viewing this thread directly
from their web site, no longer works, which is why I have to point
you to this archived copy. As for the list of "Unscrupulous", expect
that list to be constantly growing - changing your product name is
an easy way to slither away from a bad reputation.

http://web.archive.org/web/20060110042352/http://xtremesystems.org/fo...

Paul

thanks for your help paul
yeah that thread was a good read. lol

im thinking ill get my replacement psu today. so ive got something to
tide me through to next pay day
in a weeks time where it may be worth $160 or so at msy.

 

[kony]

Bookmarked, and thanks

I see the subject remains as controversial as ever.

Paul

Yeah, I'd take a Delta at any given wattage before many of
the brands they list as supposedly better. IMO, 500W of
Delta > most other brands except PC Power & Cooling and
Zippy. To rank Thermaltake, Hipower, Enermax, Ultra and
Antec above them is ludicrous, IMO... just one example.

 

[spodosaurus]

hey all

tonight. after ages of working beautifully.
minus a few probs with my graphics card being too powerful to run
older games.

i believe either my board or my psu has carked it

600w SHAW PSU picked up from MSY, box hill.
admittedly it was el cheap. but it was purchased about 8 - 10 weeks
ago.
if that.

now i don't believe my system wouldve been dragging much on the psu.
i can definitely smell something inside the box that isnt right.

but yeah playing S.T.A.L.K.E.R earlier... and had been doing so for a
good 2 hours.
then all of a sudden. power goes out. first assumption was a fuse in
the house must have blown
yet everything else plugged into that power board was fine and
working.
monitor, amp, sub woofer.

i look inside the case. the little green light is gone
now im paranoid the psu doing this may have destroyed my motherboard
(asus m2n-e sli).
thankfully all of this is still under warranty.
seeing as i got most the parts in early september.
still not too cheery right now.

any reasons this could have happened?
other than the obvious
"cheap power supplies are cheap for a reason" answer.

thanks for your help in advance.

1. Don't try and power this up again, as you may kill anything that
isn't dead already.

2. PSUs fail. It happens. They can also take everything with them. This
seems more frequent with El Cheapo PSUs.

3. Take a multimeter and test your PSU. There're instructions on how to
do this in this group's archives via google groups. It's better to test
PSUs with a load attached, but unless you have a couple of devices
you're wiling to risk killing, then I'd just be quick about it and short
the appropriate connectors with a paper clip. Remember: have this PSU
disconnected from the drives, motherboard, etc, unless you're willing to
take a chance of killing them.

4. A UPS that acts to help 'smooth' power to a PC may be a valuable
investment.

5. Report back and let us know how it goes, and what the results are!

Cheers,

Ari

(never ordered from MSY before, I use local shops here in Perth usually)

--
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[larry moe 'n curly]

i believe either my board or my psu has carked it

600w SHAW PSU picked up from MSY, box hill.

Who makes the Shaw PSU? If there's a CSA or UL (RU) certification
number, you can usually find the real manufacturer at www.ul.com or
www.csa.ca.

Here's a review of several low-cost PSUs, both good ones and bad ones,
including some autopsies::

www.jonnyguru.com/review_details.php?id=134

Notice that two 300W units were able to put out more power than some
of the 600W+ models.

 

[JeDi[Sh3eP]]

Who makes the Shaw PSU? If there's a CSA or UL (RU) certification
number, you can usually find the real manufacturer atwww.ul.comorwww.csa.ca.

Here's a review of several low-cost PSUs, both good ones and bad ones,
including some autopsies::

www.jonnyguru.com/review_details.php?id=134

Notice that two 300W units were able to put out more power than some
of the 600W+ models.

thanks everyone.
was able to get the PSU replaced. got given another el cheapo..
slightly better than the last one.
the box says besta
(perhaps i should submit that to engrish.com lololol)
but yeah given to me as a 650w shaw tri fan psu,
its nice and silent. and will do until next pay day when i lash out
the dollars and buy something reliable
i think the toughpower series seems good.

but yeah. luckily the psu didnt take anything else out with it.