Antec Power Supplies Failing

G

Gary

Why not just buy two Seasonics for the same price or less? Very good
quality, and they use the same Teapo brand capacitors found in most
PCP&Cs.

I tried them and had two fail.
 
K

KR

Jim said:
I have had THREE (3) Antec power supplies fail in the last 9 months.

The first failure was August 2006, and was a PS that came with an
Antec Sonata case originally purchased in 2005 (I believe it was
a 400W PS). I replaced it with an Antec SP-450.

In November 06 I bought a second case, an Antec Sonata-II for a new
system. This system came with an SP-450, and the power supply
failed in February 07. I couldn't find the receipt so Antec
wouldn't replace it under warranty. I replaced it with a different
brand PS.

Then last week the replacement SP-450 that I purchased in August 06
started failing randomly. It would power up but within 5-10 minutes
the system would stop responding and lose monitor signal (but not
hard disk power). Replacing the PS with a Thermaltake 430W cured
that problem.

I do have the receipt for the replacement SP-450 I bought in August
06 so I'm going to try to get Antec to replace it. We'll see what
happens.

I've had one or more PCs since 1987, and in the 19 years prior to
August 2006 have seen exactly ONE power supply go bad (it was a
spectacular *BANG* and puff of smoke :) Three bad Antec power
supplies seem to indicate a trend.

Anybody else having problems with Antec?
I had one in 2005, it was definitely not overloaded. The first
symptoms of the problem where when 2 relatively new hard drives
started acting like they were about to crash (making repeated internal
scraping noises, and showing errors). When these were tried in
another machine they worked perfectly, but played up when put back in
the machine with the Antec supply. Another known-good hard drive of
different brand was tried in the antec machine, worked fine but had
same "failure" like symptoms within 2 days that then didnt stop.

Decided to test further, found that the Antec supply +5 rail was at
4.7v. After a bit of circuit tracing, installed a pot to increase the
voltage to 5.0v. (When doing this, noticed no stressed or damaged
components or dry solder joints inside) This made things better but
there were still strange problems with the machine.

In desperation, I removed the supply and put in an cheap no-name 350w
unit that I had lying around from another machine. No more problems,
and all hard drives that had problems before now work perfectly, and
still do.

I don't know exactly what the supply was doing, (all voltages were
steady when measured with a meter) but sure as hell the system didnt
like it one bit. Note that it had worked perfectly for about a year
or so prior to all this.

At the time I was advised by others in the computer business to "keep
well away from these up-market supplies as they seemed to have many
reliability problems" - and the cheapie $40 ones seem to do the job
better and more reliably

I think it is still lying around somewhere here in my junk pile.
 
J

Jim Garrison

Bob said:
Jim said:
I have had THREE (3) Antec power supplies fail in the last 9 months. [snip]
Anybody else having problems with Antec?

Were they plugged into a battery back up or UPS? I have an Antec 550W
True Control PSU that is going on 4 years now with no problems. But I've
always had mine plugged in to a good UPS.

Yep. I've had all my systems on UPSes since the mid '90s. I don't
ever plug computers directly into the wall (except laptops, of
course :), and whenever I set up a system for somebody else
I always "require" them to buy a UPS to go along with it.
 
B

Bob M

Jim said:
I have had THREE (3) Antec power supplies fail in the last 9 months.

The first failure was August 2006, and was a PS that came with an
Antec Sonata case originally purchased in 2005 (I believe it was
a 400W PS). I replaced it with an Antec SP-450.

In November 06 I bought a second case, an Antec Sonata-II for a new
system. This system came with an SP-450, and the power supply
failed in February 07. I couldn't find the receipt so Antec
wouldn't replace it under warranty. I replaced it with a different
brand PS.

Then last week the replacement SP-450 that I purchased in August 06
started failing randomly. It would power up but within 5-10 minutes
the system would stop responding and lose monitor signal (but not
hard disk power). Replacing the PS with a Thermaltake 430W cured
that problem.

I do have the receipt for the replacement SP-450 I bought in August
06 so I'm going to try to get Antec to replace it. We'll see what
happens.

I've had one or more PCs since 1987, and in the 19 years prior to
August 2006 have seen exactly ONE power supply go bad (it was a
spectacular *BANG* and puff of smoke :) Three bad Antec power
supplies seem to indicate a trend.

Anybody else having problems with Antec?

Were they plugged into a battery back up or UPS? I have an Antec 550W
True Control PSU that is going on 4 years now with no problems. But I've
always had mine plugged in to a good UPS.

Bob
 
B

Brazen Normalcy

Yes, I've had problems. I built 4 SLI gaming systems about a year
ago, and in that time I've had 2 of the Antec SP 500 SLI power
supplies go bad. It's to the point now that I keep an extra power
supply on hand to keep the network up.

Maybe I've just had bad luck, or maybe Antec's contracted out to the
wrong people, but as it is, a year ago I would have recommended Antec
to anyone. Now I wouldn't.
 
F

Frank McCoy

In alt.comp.hardware.pc-homebuilt Brazen Normalcy
Yes, I've had problems. I built 4 SLI gaming systems about a year
ago, and in that time I've had 2 of the Antec SP 500 SLI power
supplies go bad. It's to the point now that I keep an extra power
supply on hand to keep the network up.
It ain't just Antec. ;-{
I *always* try to keep an extra PSU on hand (and extra mouse, keyboards,
fan(s), CPU-coolers, 512-MB memory-sticks, as well as monitor); and I
only maintain six computers.
Maybe I've just had bad luck, or maybe Antec's contracted out to the
wrong people, but as it is, a year ago I would have recommended Antec
to anyone. Now I wouldn't.
Antec or not, keeping an extra known-good PSU around, just makes sense.
 
J

Jim

Jim said:
I have had THREE (3) Antec power supplies fail in the last 9 months.

The first failure was August 2006, and was a PS that came with an
Antec Sonata case originally purchased in 2005 (I believe it was a
400W PS). I replaced it with an Antec SP-450.

In November 06 I bought a second case, an Antec Sonata-II for a new
system. This system came with an SP-450, and the power supply failed
in February 07. I couldn't find the receipt so Antec wouldn't
replace it under warranty. I replaced it with a different brand PS.

Then last week the replacement SP-450 that I purchased in August 06
started failing randomly. It would power up but within 5-10 minutes
the system would stop responding and lose monitor signal (but not
hard disk power). Replacing the PS with a Thermaltake 430W cured
that problem.

I do have the receipt for the replacement SP-450 I bought in August
06 so I'm going to try to get Antec to replace it. We'll see what
happens.

I've had one or more PCs since 1987, and in the 19 years prior to
August 2006 have seen exactly ONE power supply go bad (it was a
spectacular *BANG* and puff of smoke :) Three bad Antec power
supplies seem to indicate a trend.

Anybody else having problems with Antec?
Going back several years I had string of power supply failures as well.
Turns out it wasn't their fault entirely. A key culprit was a
defective main panel box (aka: circuit breaker box)

If the power doesn't get by that cleanly the power supply has a much
harder job to do.
 
J

johns

I had 16 Antec SmartPower 2.0 fail in one year.
I returned 14 of them under warranty, but I opened
and repaired 2 of them to find the cause. As the
Antec rep in this thread said, it was bad electrolytic
caps in the standby supply, but the cause was not
the caps themselves. The cause was clearly that
the caps were located directly between 2 very
large heatsinks in the standby supply. Neither
of those caps was in the cooling stream of the
power supply fan, plus, that fan shuts down
when the supply goes into standby ... as when
system Hibernate is used. Also, I noticed that
if the room temp is 75 F or better, the standby
heat sinks get quite warm, and litterally cook
those 2 capacitors. The proper repair that works
is to run connecting wires about 2 inches long
to replacement caps, but locate the caps away
from the 2 large heatsinks. I even used Jameco
capacitors ( heh ! ), and they are still working
fine. So far, I have made an effort to make sure
that the room temp of my CAD lab where these
computers are located, stays well below 75 F.
And the replacement supplies that Antec sent
me have held up fine. So, to conclude, the
problem was not the quality of the capacitors,
as much as it was a cooling problem with the
heat sink design, and the fact that the fan
shuts off during standby - hibernate, when the
computers are placed in a warm room full
of cold natured students. That also explains
why el-cheapo psupplies would work. They
don't put out nearly as much power, and they
also don't use heat sinks. And they are not
smart enough to go into standby anyway, so
their fans don't shut down. I have not opened
one of the newer Antec supplies, but I sense
that they are a bit larger, probably giving those
heat sinks more room. That was a really tight
design in the original supplies. The new Antec
supplies have held up fine, but if we lose AC
in the summer, I get down to the lab quick,
and switch the supplies off at the rear
connector. No sense in being stupid about
it.

johns
 
K

KR

Were they plugged into a battery back up or UPS? I have an Antec 550W
True Control PSU that is going on 4 years now with no problems. But I've
always had mine plugged in to a good UPS.

Bob


UPS is a good idea, many of them now even use relays to switch
between high an low taps on the internal transformer, to regulate the
incoming mains if it goes high or low, an excellent idea :)
 
W

w_tom

Going back several years I had string of power supply failures as well.
Turns out it wasn't their fault entirely. A key culprit was a
defective main panel box (aka: circuit breaker box)

If the power doesn't get by that cleanly the power supply has a much
harder job to do

Take the UPS that Jim Garrison believes is protection. First it
connects AC electricity directly from wall receptacle to power supply
(when not in battery backup mode). Where is this electricity
'cleaner'? Does that relay 'clean' electricity? Typically AC main is
cleanest electricity.

What happens when a computer grade UPS goes into battery backup
mode? Let's look at the 120 VAC output by this UPS. Two 200 volt
square waves with up to a 270 volt spike between those square waves?
Is that clean electricity? No - not to small electric motors that
might be damaged by that UPS electricity. But those 200 volt square
waves (also called modified sine wave) are perfectly clean to
computers. Power supply (such as Antec) must make those 200 volts
square waves irrelevant.

So where is this 'cleaner' electricity from a UPS? Myths. Where
does it claim to 'clean' electricity in its numerical specs? It does
not.

What is 'dirty' electricity created by a defective mains box panel?
Also does not exist. Is light bulb intensity constant? Then mains
box panel does not create 'destructive' electricity.

Power supply must supply clean computer power - as was also true 30
years ago. Clean electricity is a power supply function.

Power supplies include numerous functions so often unknown even to
certified computer techs. For example, how long does it take a UPS to
switch from 'directly from AC mains' to 'battery backup mode'.
Typically about 10 milliseconds with no electricity. Power supply
provides uninterrupted computer power while UPS is switching; provides
no electricity. Another function required in a power supply and
stated in numerical specifications.
Any computer that does not work in a 100 degree F room is 100%
defective. If anyone must keep computers at 75 degrees or less, then
purchaser is buying 100% defective hardware. Even a 100 degree F room
must be perfectly normal operating temperature to any PC. Just
another way to identify defective computer hardware before failures
occur.

Jim Garrison replaced multiple power supplies without first learning
what is defective. It is a power supply 'system'; more that just a
power supply. Why blame three power supplies when other 'system'
parts are unknown? Two minutes with a meter creates definitive
conclusions - eliminates wild speculation.

DK provides numbers that imply a power supply 'system' failure. IOW
his system is or 'sometime in the future' will probably suffer
intermittent failures. Or motherboard monitor requires calibration.

Two minutes and numbers from that meter when supply is under full
load (multitask to all peripherals) can detect a problem before that
problem creates failure. If a UPS must 'clean' electricity, then ask
yourself why that clone power supply cost so little. What happened to
those required and missing functions that were once standard in all
power supplies even 30 years ago?

Computer grade UPS does not 'clean' electricity. Mains breaker box
does not create 'dirty' electricity. 'Cleaning' electricity is but
one function of a power supply.
 
C

charles_d

Antec would like to apologize for any trouble or inconvenience caused by
the recent increase in problems with our SmartPower 2.0 power supplies.
The problems were primarily caused by the transition at one factory to
RoHS manufacturing and compliant components and one component in
particular, a capacitor on the +5V standby line. There were two
primary failure modes due to this: the first being lower than normal
output voltages on the +5V SB line,

What range of voltage measurements are we talking about here?
eg < 4.5volts ? 4.8 volts ?
 
J

John Doe

AntecRep said:
Antec would like to apologize for any trouble or inconvenience
caused by the recent increase in problems with our SmartPower 2.0
power supplies. The problems were primarily caused by the
transition at one factory to RoHS manufacturing and compliant
components and one component in particular, a capacitor on the +5V
standby line. There were two primary failure modes due to this:
the first being lower than normal output voltages on the +5V SB
line, making a good power supply appear to be DOA due to boot
failure; or the second being a failure of the same capacitor
after some time in service, resulting in power supply failure.
Antec has taken the most stringent possible actions to remove any
suspect power supplies from our supply chain. We have corrected
the problem at the factory and instituted the highest possible
level of testing and quality control.

Hopefully the "highest possible" means the same problem won't happen
again.
If you have any problems with previously purchased products,
remember you have a three year warranty on all SmartPower 2.0
products. You can contact Antec Customer Support at
customersupport antec.com or at europe.techsupport antec.com and
you will be provided with immediate hassle-free service to resolve
your problems.

That doesn't address the original poster's problem, not having a
receipt and therefore being denied warranty service.
We appreciate your support and faith in Antec and our products.
Again, we apologize for any disappointment we may have caused.

Also possible is causing loss of business.

By the way, the form explanation is useful but a reply to the
original poster might be better appreciated IMO.
 
M

mmarkoe

http://groups.google.com/group/free.spam/topics?hl=en

Click the link above. You will see that the same John Dope, who calls
me a Spammer for helpfully answering questions, is the biggest
SPAMMER
on Google Groups.In the link you can see 1301 John Doe SPAM messages.
Things like:

Please visit WWW.hope2cu.COM
We are a clothing wholesaler based in the England and china. We sell
many branded name products . We also have very low MOQ so that we can
supply those people who
would like to test out our service.

These SPAM are posted from John Dope's unique logon. I am surprised
he
calls me a Spammer when his blatant advertising (over 1000 in the
past
couple of months) does not offer one iota of help to anyone.

Fooey on John Dope.

Martin Markoe, eMicrophones, Inc.
 
J

John Doe

The speech users (comp.speech.users) group is a lesson in why
advertising is not allowed in USENET groups except those named
*forsale* and *marketplace*.

Unfortunately, there haven't been enough regular authors to rein in
the spammers.

Following are a few quotes from others directed to the malicious
king-of-spammers Martin Markoe. I think they help illustrate the
annoyance/frustration that advertising causes for ordinary/real users
looking for help on unmoderated USENET forums.

http://groups.google.com/group/comp.speech.users/msg/3becc9fa6c340ffc?

You are not a technologist. You sell microphones.

Marty, how come whenever someone disagrees with you, you get into this
high school urinating contest mode? Actually I can't find your
credentials anywhere either, except as a guy selling something.

http://groups.google.com/group/comp.speech.users/msg/473a2b3f9dd6a0f0?

Man you really are full of yourself! Just leave me alone. I asked you
a question. Silly me, I wanted to know what I was buying before I
bought it. How absurd! I then get email after email after email from
you telling me that you won't answer my question and trying to justify
it. Lets cut the crap. You won't answer my question. I won't buy from
you. So now go away and let me get USEFUL information from someone who
will be honest with me instead of evasive, devisive and insulting!

http://groups.google.com/group/comp.speech.users/msg/d256b8b7563712e9?

More importantly I am not here touting my business. A position which
makes anything you say suspect, doesn't it.

I have been watching this group for a long time and you have managed
to turn it into the eMicrophones, Inc. mail list. Almost no one with
expertise posts here any longer.

http://groups.google.com/group/comp.speech.users/msg/6014c0e38032578f?

Is anyone else beyond annoyed with the two pathetically desperate
"small business owners" that have driven this group into the ground?

I subscribed 6 months ago hoping to learn something about the
"state-of-the-art" in voice recognition from the user's perspective.

All I've managed to learn is that most users are apparently being
ripped off by over-charging slimy weaseloid microphone hawkers.

Martin Markoe and Mr. "speaktoyourpc.com", I beg you to consider the
number of potential customers you're pissing off before you further
demonstrate your witlessness by posting again. Your childish
King-of-the-Group games should've stopped a loooong time ago.

http://groups.google.com/group/comp.speech.users/msg/3b57c2d47a1d5994?

Well said...Refreshing.

[That in response to the prior message.]

http://groups.google.com/group/comp.speech.users/msg/ce73180162c1d199?

.... dealing with you on the newsgroups is not an easy thing and most
always turns into some type of flaming war.

.... you do get into fights with many regarding microphones and you do
wave your website around more often than necessary and you don't
always tell the truth about competitive products.

I didn't respond because I simply did not want to get into another
fight which is the reason my posts have been very light in the last
few months.

Here are my qualifications. Certified and trained for Philips
SpeechMagic, IBM ViaVoice, IBM Medspeak, Kurzweil VoiceMed, Dragon
NaturallySpeaking Enterprise & L&H VoiceXpress... So please, don't
call me a "Charlatan" because it is simply not true.

And believe me when I tell you that some users actually get better
recognition from $20 headsets than with $100 headsets.

I see vendors posting all the time and as long as you are not a member
of the newsgroup, there aren't constant one-up battles.

http://groups.google.com/group/comp.speech.users/msg/a42c0234af3ebbef?

Martin,

It is precisely this type of reactionary and vitriolic response that
has prompted me to post to this forum.

http://groups.google.com/group/comp.speech.users/msg/ba6cc5fd879272fd?

After getting caught with his pants down regarding his so called

privacy policy, Martin continues to make a complete ass out of
himself.

With this pattern of behaviour, the next step is usually
stalking--email stalking (... to menacingly spread deceit)

[An example of that is Martin Markoe's posting history within the last
24 hours.]

http://groups.google.com/group/comp.speech.users/msg/84f362b69d93a460?

.... you don't see the authors in all the newsgroups in a constant
battle. Only with you Marty.

You have left such a bad taste in my mouth about your constant
bickering...

I can't believe you are talking about spamming. I have seen posts from
you that link to as many as 8 direct links to your website (all in one
post) and your signatures fall within 5 or 10 lines long. In my book,
that's called SPAMMING.

If I recall, about 2 weeks ago, you claimed to have sold thousands of
GN MPA Satellites. I know for a fact that is not true.

This has become a game and if the flaming stops, perhaps we can get
this group active again.

Guess what Marty.... I have a life. I don't have time to live on the
newsgroups as you do.

This is the 2nd time you have mentioned me being moderated on user
groups. Last time, you apologized about confusing me with someone
else. YOU ARE OUT OF CONTROL MARTY MARKOE.

Marty, your constant abuse on these newsgroups... must come to an end.

http://groups.google.com/group/comp.speech.users/msg/5585a5e972b1cc1c?

I give up. I've dealt with delusional people like you before, and it
leads to nowhere... you continue attacking people who are FAR more
experienced and qualified than you, not to mention professional...
You're a waste of bandwidth.

See also:
"Martin Markoe" <martin emicrophones.com>
.... <mmarkoe bestweb.net>
.... <martin speechcontrol.com>
.... <mmarkoe optonline.net>
"Michael Mendick" <michael emicrophones.com>


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From: mmarkoe optonline.net
Newsgroups: alt.comp.hardware.pc-homebuilt
Subject: Re: Antec Power Supplies Failing
Date: 2 Apr 2007 06:42:18 -0700
Organization: http://groups.google.com
Lines: 24
Message-ID: <1175521338.835409.240060 q75g2000hsh.googlegroups.com>
References: <460095cd$0$1418$4c368faf roadrunner.com> <AntecRep.475753 computerbanter.com> <Xy%Oh.12267$Um6.10132 newssvr12.news.prodigy.net>
NNTP-Posting-Host: 69.119.117.84
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X-Complaints-To: groups-abuse google.com
NNTP-Posting-Date: Mon, 2 Apr 2007 13:42:21 +0000 (UTC)
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Complaints-To: groups-abuse google.com
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Xref: prodigy.net alt.comp.hardware.pc-homebuilt:487935

http://groups.google.com/group/free.spam/topics?hl=en

Click the link above. You will see that the same John Dope, who calls
me a Spammer for helpfully answering questions, is the biggest
SPAMMER
on Google Groups.In the link you can see 1301 John Doe SPAM messages.
Things like:

Please visit WWW.hope2cu.COM
We are a clothing wholesaler based in the England and china. We sell
many branded name products . We also have very low MOQ so that we can
supply those people who
would like to test out our service.

These SPAM are posted from John Dope's unique logon. I am surprised
he
calls me a Spammer when his blatant advertising (over 1000 in the
past
couple of months) does not offer one iota of help to anyone.

Fooey on John Dope.

Martin Markoe, eMicrophones, Inc.
 

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