Is My Power Supply Failing?

I installed Battlefield 3 on my 2008 MacPro under BootCamp and I could only play two minutes into the first mission as the screen goes blank, I get a sort of 'zap' noise and the computer reboots. I stopped playing that game and installed Modern Warfare 3 which I played all the way through in Standard mode. I few days ago I tried to replay it in Expert mode and the same thing happened. It seems as if this happens when the video card (a GTX285) is stressed. I contacted EVGA and they said it may be a failing power supply and suggested I try a different power supply which is not practical.
Is there any way I can check my power supply by somehow putting on test and stressing it?
Thanks
Alan

Did you install the latest Nvidia driver? EVGA Precision?
Thermal fan control under Windows is pretty much lacking and your system, esp. FBDIMMs can also get warmer than you want.
And make sure your aux power cables are both good first.
Sure you can run a number of Windows stress tests. PRIME, Intel
http://forums.tweaktown.com/gigabyte/30530-latest-overclocking-programs-system-i nfo-benchmarking-stability-tools.html

Similar Messages

DFM - Power Supply Failed Detection on 4500s LMS 3.2

Hello,
This device has two power supplies, when one of them fails LMS (DFM) doesn't detect it.
What is the problem?
I attach some information.
Thanks

go to the Detailed Device View for this device, then under Environment > Power Supply check if the managed status for both power supplies is "true";
from the output of your SNMP walk both power supplies are ok;
You can still add an Automatic Action on the syslog message generated when the power supply fails which e.g can send you an email;

DFM - Power Supply Failed Detection on 4500s

Running DFM 3.2.0 under LMS 3.2 for Windows 2003 Server Enterprise.
DFM has been pretty good about detecting power supply failures but recently I came across one power supply failure it didn't detect. This was on a 4506 running cat4500-ipbasek9-mz.122-53.SG.bin. Could there be a bug in detection of power supply failures with this firmware version?
Also, polling for power supply failures a configurable option in DFM?
Thanks,
David

Yes, the device is known in DFM (I did a re-import just in case)
Device Status             = Known
Device Type               = Switches and Hubs
Aliases                       = N/A
Containments              = N/A
DFM Processing          = Active
Time Last Discovered = 01-Feb-2010 12:28:43
Import Time Stamp       = 01-Feb-2010 12:19:56
    *** Data Collector Status Information ***
Error Code                   = N/A
Error Message             = N/A
The power supply condition isn't reflected in the alerts.
Could it be that if the power supply is off to begin with when it does it's discovery, it doesn't register an alarm?

G4 mini Random Shutdown; Now Won't Power On, Power Supply Problem?

Twice now, my G4 mini has simply turned off randomly. The first time, it eventually restarted, and all was good until today, when it did it again. This time, it simply won't power on, much less boot. I wanted to run this by someone else (no Mac people here but me) before I bought a second power supply.
What I've noticed:
*If I plug a cold power supply into the wall, and then into the mini, the mini lights up for maybe half a second, then turns off again.
*Then, leaving mini plugged in to the PS, if I uplug the PS from the wall, wait ~3-5 minutes, plug it back in, the mini will light up for 1/2 second again.
*If I then unplug the PS from the mini (but leaving the PS plugged into the PS), wait ~3-5 min again, then plug the PS back into the mini, nothing happens. No lights, fireworks, nada.
I have repeated every possible combination of plugged/unplugged mini/PS in several outlets throughout my building. It seems that if I have a "hot" PS the mini will not light up no matter what. If the PS is "cold", and has sat for a few minutes, the machine will try to boot.
All I can think is that something in the mini is tripping a safety on the PS, or the PS is just tripping on its own.
Bad PS?

It's possible the previous power supply failed in a way that caused damage to the system, or of course for another fault to have developed with these symptoms.
It's interesting that it worked, apparently properly, because that tends to suggest the fault is something new, or that you have power issues of another kind external to the Mac.
I would suggest you try and reset the PMU since this controls the power management functions of the system.
- Unplug all cables from the computer, including the power cord.
- Wait 10 seconds.
- Plug in the power cord while simultaneously pressing and holding the power button on the back of the computer.
- Let go of the power button.
- Press the power button once more to start up your Mac mini.
This may not help much, but it's well worth trying.

Does "dual power supply" mean "redundant power supply"?

Does Cisco7301 "dual power supply" mean "redundant power supply"?
If unplug one power socket, 7301 continues operating?

Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
On a 7301, I believe it does act as a redundant power supply, and this is often true for many Cisco devices with dual power supplies, but there can be exceptions. For example, on the 6500 chassis, you might use dual power supplies in combined mode, i.e. failure of a power supply would leave the chassis short of necessary power. The 3560X/3750X might also have insufficient power if a power supply fails when running on two (this issue may arise when using PoE).

CNA & "switch redundant power supply"

Just configured trunking between these switches:
2950T-48-SI
3508G-XL
3548-XL
The traffic appears to be flowing correctly through both the default VLAN and also my additional VLAN.
Now, ALL of the 2950 switches on my network display this message: "switch redundant power supply failed" when I connect to them using the Cisco Network Assistant.
Seems like the error message must be related somehow to the VLAN configuration I did.
In a nutshell, I configured all connected Gigabit ports this way:
switchport mode trunk
switchport trunk encapsulation dot1q
I only configured SOME of my switches for the trunking and additional VLAN - must all of them be configured the say way, even if I don't anticipate needing the additional VLANS on those switches?
Thanks, Susan

Hi Susan,
Do you have redundant power supplies connected to the 2950s?
If not, you are probably running into a cosmetic bug, CSCee96721.
We can confirm this by issuing a "show env" in the CLI.
You should see something like this:
"switch#sho env all
FAN is OK
Internal POWER supply is OK
RPS is NOT present
RPS is FAULTY"
Note that the last line indicates that the RPS is faulty, even though the line above it indicates that no RPS is present.
If that applies to you as well, then you are hitting this bug. CNA is polling the same information, which is why you are seeing "switch redundant power supply failed" in CNA.
The fix is in 12.1(22)EA3 and later.
HTH,
Bobby
*Please rate helpful posts.

Power supply results

I currently have my iMac in the shop for a power supply issue repair, for those of you who have had this repair done in the past what kind of results did you have? Was the computer good as new? Did you have more problems related to the power supply? Did the power supply fail again?
How many times does a mac have to be repaired before Apple will replace it?

Dagster-My computer was doing exactly what your computer is doing, shutting off on its own.
Here is the story, I'm sure you all have one of your own or have heard it before but here goes.
Last Tuesday the 30th the computer just started shutting off. So I called Applecare and the rep had me unplug the mac and restart it holding the power button, but that didn't fix it, and then cell phone cut out and I had to call back. The next rep told me that I wasn't eligable for phone support and it would cost money for him to help me. SO I hung up and got out the yellow pages. I found a local service center that wasn't an Apple Store.(I'm not opposed to the Apple Store, this location was simply closer) So I took the computer in Wednesday morning and they told me they would try to have a tech look at it before the weekend but if not, I was down for Monday for sure. Not 20 minutes later I get a call saying it sounded like a power supply issue and to call the SOS line and ask for a CS code because this is known problem and Apple will pay to fix it. I do that and I'm feeling better about my computer being in the shop. I don't hear from the shop I call Monday afternoon and the person I talk to tells me that the tech got busy and hadn't look at my computer yet, Ok, that happens I understand. So I call Wednesday afternoon and they tell me they didn't get it fixed yet and that the tech would try to look at it again Thurday(today) but if not, Friday for sure. HUMPF. I'm hoping that the added time for repairs means that they are doing a quality job. I also fine it odd they have only called me once, but the one time they did call it was a good thing. When I dropped off the computer the office didn't look like the type of place that would string you along for no reason so I am curious as to how they act once I get my computer back.

Apple TV 160GB 1st Generation Failed Power Supply

Hi,
Anyone know where I can buy a replacement Delta switching power supply model ADP-36BF (Output 5v 7.2A) for my failed one in my Apple TV 160GB Generation 1 ?
I wouldn't suppose Apple woud repair it for less than the cost of a new ATV Black :-(

it's a universal device, so will work anywhere.
the only thing you will need to change is the power cable/plug.

I keep getting an alarm on my xserve telling me power supply has failed

Raid admin shows an event that power supply 2 has failed and the audible alarm goes off on the server but the the components section in raid admin shows all ok.
also the power supplys both seem to be running ok when I look at them visually.
is this a bug or should I replace the power supply?
RT

Can you clarify what Mac and Mac OS you really have? Facetime was introduced in 2010, four years after PowerMacs were discontinued. And "iOS" is not an computer OS.
Doing "About this Mac" will show your processor type and OSX version. That should help us figure out if you need to be moved to a different forum.

My Time Capsule has just failed, 2 months after the end of 12m warranty. same old known power supply issue, "just unlucky" says my local Apple service center. ***?

i bought a 2TB Time Capsule in Sep 2010. its just failed last week, less than 2 months after the expiry of the 12month warranty.
and 3 months after the end of Apple's offer to replace all the many Time Capsules that have failed previously due to this same fault.
nice timing guys.
"yeah, its dead. same old known power supply issue", says my local Apple service center, "just unlucky".
huh? "unlucky"? you sell products with known defects, and when it fails i'm "unlucky". nice.
"OK, anyway, how much to fix it ?", i ask.
"you can't fix them, its closed", is the reply, "you have to buy another one".
"hmpf. OK, how do I get my backed-up data off it ?"
"you can't. we could try break it open and recover the hard disk i guess, but no guarantees we'd get it, and you'd have to pay for us to do that, whether it works or not of course".
"er.... is there a hidden camera in here? are we on TV? you can't be serious ? ..and this piece of garbage is what i've been using for a secure backup of my precious, irreplaceable, priceless personal data ???"

ceeb28744. Welcome to the Apple Users Support Community. Sorry to hear your TC died! You said it was a 2TB so I would guess it be the model A1355/MB997LL/A or MC344LL/A. Believe it or not all users of these time capsules will eventually experience this problem like you have. There is a 99.5% (or better) chance that the only thing that is wrong with it is the internal power supply. If you will go to this site.... https://sites.google.com/site/lapastenague/a-deconstruction-of-routers-and-modem s/apple-time-capsule-repair and once there look over at the left side and you will find:
Apple Time Capsule Repairers and from that list you will be able to choose from a list of individuals that could repair your TC and have it returned to you fully operational again. The individuals on the list are hardware technicians and they can save you a lot of money and time.
Larry

Can Someone tell me the symptoms of a failing power supply?

My system is having lots of problems, especially running games and graphics apps.
When running a game my PC just hangs(not a shut down, just locked screen). This forces me to do a hard reset.
All my components test fine individually...
I'm wondering if this problem can be caused by a failing power supply that isn't delivering adequate power to my motherboard.
Please help!!!

It turns out that my power supply hasn't really failed... It just can't handle my new rig. After calculating that nearly 100 watts of 3.3v are required to keep my 1.5Gig's of ram juiced, there was no way that my cheap little no-name NON-UL listed PSU is going to be able to keep up!
So, here's what I did about that.
tt-420
:D
I got it from newegg (great store, which is willing to adjust prices if you can get through on the phone, make a reasonable reference to a site that is selling the same item for less, AND you bug the hell out of them for long enough that they'll give in just to get rid of you. ) for $55USD.
I also did this about that. I thought that I might as well have a beauty new case to put all this great hardware in. :P
tt-5000a
I also got this at newegg. They knocked off the shipping for me, in an effort to do some price matching. Makes it within $2 of the best price I could find elsewhere, GOOD ENOUGH!
I can't wait to get my new rig all setup (and possibly hovering due to all the fans 8o )
Thanks for the insight go to all who replied... CHEERS!
PS. I checked out the model numbers of my "enermax" power supply. It turns out that enermax doesn't have a "EN400NUL". That's the last time that I buy important parts from a surplus store.

Is this a failed power supply?

Folks,
I think PSU2 has failed:
atl01-ucsf01a-A /server # show psu detail
PSU:
    PSU: 1
    Overall Status: Operable
    Operability: Operable
    Threshold Status: OK
    Power State: On
    Presence: Equipped
    Thermal Status: OK
    Voltage Status: OK
    Product Name: 650W power supply, with added 5A Standby for UCS C200 or C210
    PID: R2X0-PSU2-650W-SB
    VID: V00
    Vendor: Cisco Systems Inc
    Serial (SN): QCI15411SCZ
    HW Revision: 0
    PSU: 2
    Overall Status: N/A
    Operability: N/A
    Threshold Status: N/A
    Power State: PwrSave
    Presence: Equipped
    Thermal Status: OK
    Voltage Status: N/A
    Product Name: 650W power supply, with added 5A Standby for UCS C200 or C210
    PID: R2X0-PSU2-650W-SB
    VID: V00
    Vendor: Cisco Systems Inc
    Serial (SN): QCI15391R9C
    HW Revision: 0
However, UCS isn't showing a fault:
atl01-ucsf01a-A /server # show fault
atl01-ucsf01a-A /server #
Any assistance is appreciated.
Cheers,
Paul

Hello,
It is indeed a UCSM managed C210 M2:
atl01-ucsf01a-A /server # show inventory
Server 11:
    Name: ATL-L09-U24
    Acknowledged Serial (SN): QCI1543AD3U
    Acknowledged Product Name: Cisco UCS C210 M2
    Acknowledged PID: R210-2121605W
    Acknowledged VID: 0
    Acknowledged Memory (MB): 98304
    Acknowledged Effective Memory (MB): 98304
    Acknowledged Cores: 8
    Acknowledged Adapters: 1
Here's the rest of the information you were looking for:
atl01-ucsf01a-A# show version
System version: 2.0(3c)
atl01-ucsf01a-A# scope org
atl01-ucsf01a-A /org # show psu-policy
PSU Policy:
    Redundancy Description
    Grid
I think this is the power policy information you were looking for?
Cheers,
Paul

Satellite L100 power supply keeps failing

Hi all,
I have an L100. A few weeks ago, the main power supply (the transformer brick) failed, so I replaced it (with a genuine Toshiba part).
Now the same thing has happened, 2 weeks later.
What could be causing this?
Thanks
Richard

Hi
You mean the AC adaptor?
Its not easy to say maybe its a simple bad luck.
I bought my first notebook 9 years ago. After 6 month if usage the AC adaptor was faulty and I had to replace it
But since 8 years its working fine
PS: If the AC adaptor is only 2 weeks old then the warranty should be valid
Contact the dealer and ask for a replacement.
Cheers

IMac G5 (no isight) power supply keeps failing

I had some trouble with my iMac G5 (no iSight) about 5 months ago with the power supply. I replaced the power supply, worked great for 5 months and now it's doing the same thing (turning off suddenly, trouble rebooting). I've done all the resetting of PRAM, NVRAM and SMU. Wouldn't start at all (white light would just flash) until I reset the SMU again. Didn't see any leaking items inside the machine like I've read about. I'm curious if anyone knows if I'll have to keep replacing the power supply every 5 or 6 months?? Could there be something else wrong? Thanks a ton.
RG

Did you replace the power supply yourself, or did you do it under Apple's Repair extension programs? You may still be eligible for free repairs if your serial number is correct.
In addition to a power supply problem, you could have dried thermal paste or a bad connection which would cause the same symptoms.

Shock Therapy - An Athlon64 / FX Power Supply Guide

I used to make a hardware list of all the components I would like to incorporate in my next
computer build. Normally...at the bottom of that list would be the power supply, not that I
didn't think it was important, it's just that my other hardware was so interesting! Today, power supplys
seem to take a back seat to blazing-speed CPU's, Dual-Cored processors, glitz and glamour
video cards...not to mention supersonic, heat-sinked RAM and modular, gizmoe'd PSU's promising not
only over-achiever specifications, but eye-candy as well. The lowly PSU....tucked up somewhere inside
it's dark and lonely loft....effortlessly supplying us with the energy required for important 3D imaging
or just funning with the latest games.
What a power supply does is rather simple. It converts your office or home's socketed electricity to
usable 3.3v, 5.0v and 12.0v energy...that's all. A power supply that cannot efficiently do this will-
over time-cause computer crashes, continuous reboots and shutdowns, and worse...expensive component damage.
And now, with faster processors such as AMD's Athlon64 and FX line of CPU's, never has there been a time, when
choosing the right power supply is so important! This article is written for those using these high-powered CPU's!
Well...Do we have your attention!?
If you are experiencing these problems, or still scratching your head over that last RMA....could be
your PSU is trying to tell you something.
To begin with, a power supply's ratings refer to its maximum output under ideal conditions. No power
supply is 100% efficient. In high-quantity manufacturing, power supplys may not put out any more than 60% of
their advertised specifications. In any PSU, that rating can be further reduced by the effects of heat
and electro-magnetic radiation. That's where "switching" power supplys come in. A switching power supply draws
only as much current that is needed from the AC input. Buying a hefty PSU with this feature will guarantee
that you will be paying no more for electric service, than you would with a cheaper, less powerful unit.
One of the most common causes of power supply inefficiency, and ultimately failure is dirt. Dust and
foreign materials can cause the beginning of the end for a power supply, by attacking the fan first.
It begins by slowing the fan down...thus creating heat through friction, then ultimately burning it out.
PSU's with high-quality ball bearing fans are a must. They are far more durable, and not as likely to
become noisier as time goes by.
As a general rule...a failing PSU will usually emit abnormal sounds, followed by unstable voltage readings....
then the computer crashes or lock-ups, with random shutdowns, and sometimes...refusal to even power-up.
If you think your power supply is on its last leg...better to deal with it now, or face the more serious dilemmas later on.
APM (Advanced Power Management)
APM is a feature originally developed by partners, Microsoft and Intel. It relates to a systems ability
to utilize different states in regards to a systems utilization of power. On, Off, Standby and Suspend
are examples...these are BIOS features, not PSU functions. APM only requires of the power supply, the
function to turn power on or off through an electrical signal, and the presence of stand-by voltage.
All ATX power supplys are required to incorporate this feature. However, if some components in a computer
are not APM-compliant, your system may encounter errors or freezes when going into hibernate or stand-by
modes.
ACPI (Advanced Control Power Interface)
It's the latest power management control that was developed by a conglomeration of IT corporations. This interface
is O.S. derived, rather than BIOS, and all ATX power supplys should be ACPI-compliant. You should not have to be
concerned about this feature.
Line-Conditioning Circuitry
A power supply component that helps control power levels, spikes and surges in
the most unreliable of home sockets.
EMI Filter
This circuitry smooths the fluctuations of incoming AC currents, also known
as Electro-Magnetic Interference - EMI filters are usually found in higher-end power supplys.
PFCC
Power Factor Correction Circuitry...smooths out sudden, initial spikes in power
delivery - reducing amplitude and preventing circuit overloads.
Connectors
There are five main connectors found on the latest version ATX power supply.
1) ATX main power connector - 20-pin, 24-pin, and 20 to 24-pin adapter.
2) ATX 12v power connector (4-pin to CPU)
3) Molex peripheral power connector
4) Floppy power connector
5) Serial ATA power connector
On newer SLI-certified power supplys, you'll find two 6-pin video card connectors.
Know What You Need
When purchasing a power supply, make sure your parts list is all-inclusive...know ahead of time, what you expect to
install in your system. You should also visit the motherboard manufacturer's site, as well as the CPU's. Most of the
products will have specifics regarding power supply requirements needed for that specific component. Unfortunately, you
really won't know how well the PSU performs until it is installed and running your system (hopefully!) This is the main reason we
recommend the most popular brands - power supplys that have shown a duration of manufacturing quality over the years. Those are
as follows: Antec, Enermax, OCZ, PC Power and Cooling, Tagan, and a few newcomers such as SeaSonic and Silverstone are
worth looking into.
If you believe you have found the PSU of choice, remember this: AMD recommends a minimum 350 watt power supply to run
Athlon64 and FX CPU's. To that, add the 30% for power lost to heat, and the subsequent electro-magnetic radiation. Hold on with that
calculator...throw in an additional 40% to 60% for the "potential" inaccuracies of specifications inherent in mass-produced electronics.
Pay special attention to outputs on either single, or dual rail +12v lines. A motherboard, CPU, and graphics card can consume up to
150 watts alone - before hooking up your remaining components. If running an SLI configured board, look for a PSU that is certified
to run that configuration...there's only a few PSU's that lay claim to that!
Broken down, you can look at it this way: An Athlon64/FX processor can use up to 90 watts off the +12v rail. High performance RAM
can take in about 25 watts for each stick of 256MB system memory from the +3.3v line. PCI cards will use about 10 watts each, while
an AGP video card can consume about 50 precious watts alone from the +5v or +12v. Hard drives? A 7,200 RPM drive...about 15 watts
each, taken from the +5v and +12v rail. Finally, but not absolutely is the optical drives...robbing about 20 watts each, also from
the +5v and +12v lines. So you see....not only is the +12v amp ratings of concern, but also the +5v line!
In doing the math...on a system incorporating an Athlon64 (say a 4000+), 2 sticks of high-end RAM, 2 or 3 PCI cards, 1 mid-to-high
end AGP video card, 2 ~ 7,200 RPM hard drives, and a couple of CD/RW or DVD/RW opticals...you're looking at a "base" requirement of 270 to 325 watts. That's for a running system...now figure boot-up loads, 30% for heat and radiation bleed-off, then a 40% safety factor for manufacturing inconsistencies...you've got a power supply in the 450 to 520 watt range!
Modular Power Supplys:
The pins that are used for the modular plugs are not very good at passing current. It's basically electrical resistance between the male and female components, and voltage "drops" are likely. In real world events, they will become loose, dirty, corrosive, and eventually burn. You can figure about 10% less efficiency with a modular power supply.
Now you can understand how manufacturing "tolerances" that are inaccurate by 40% to 60%, can have such a devastating effect on
the performance of your new system. If you follow these simple guidelines, bearing in mind the hardware you will be using, and what
your intended use of the computer is for...then it will be one less dramatic incident when pushing the power button for the first time!
Here's a neat little tool....a bit out of date - that can give you a basic idea of what you'll need in a PSU.
You can apply the percentages above, for an even more accurate assesment of your PSU requirements!
http://www.jscustompcs.com/power_supply/Power_Supply_Calculator.php?cmd=AMD

Quote
In doing the math...on a system incorporating an Athlon64 (say a 4000+), 2 sticks of high-end RAM, 2 or 3 PCI cards, 1 mid-to-high
end AGP video card, 2 ~ 7,200 RPM hard drives, and a couple of CD/RW or DVD/RW opticals...you're looking at a "base" requirement of 270 to 325 watts. That's for a running system...now figure boot-up loads, 30% for heat and radiation bleed-off, then a 40% safety factor for manufacturing inconsistencies...you've got a power supply in the 450 to 520 watt range!
Well, except the CPU, my system has all that you mentioned there (I even have 3 optical drives). And my 350W PSU has been rock solid for more than a year (BeQuiet, = Tagan, IIRC). I don't think a 4000+ needs 100W more than my 3200+ . And that link you posted says that the minimum recommended PSU for my system is 506W xD. Come on.
Oh, and in the place I work there are 6 amd64 with GeForce 6800 GT and 2GB RAM with 380W Antec PSUs. All 100% stable, of course.
I would only go for >400W if I wanted to do extreme OC (with overvolting), or SLI. Otherwise, a good brand 350W PSU is more than enough.

Is My Power Supply Failing?

Similar Messages

Maybe you are looking for