Random power failure.

sorry i am a noob, i have recently been having a problem with my mac just turning itself off. i happens out of the blue when i am only running menial tasks such as watching videos or browsing the internet. its not a problem with it restarting it just plain turns off as if someone has pulled the plug. if anyone has any suggestions or is experiencing the same thing please help.
thank you in advance.
jambon

Hi again,
We all need a little more info. How long has this been going on, did it just start, has it always done this since you purchased the iMac, does it happen around the same time each day, does it happen after a certain amount of time using the Mac, have you recently moved it, does it only happen when you watch videos and surf the net, etc etc etc...
If this has been an ongoing problem, I would try a new outlet. If this just started recently, I would make sure the power cord is firmly seated. If recent and you have not changed your normal routine, I would suspect a possible power supply problem. It's hard to tell until you tell us more details...
When you're watching videos or even surfing the net and watching youtube or something like that, your Mac uses a little more CPU power which will make it run a bit warmer, when a Mac reaches continuous and unusually high operating temps, it will shut off for self protection... *but watching videos and/or surfing the net should not normally cause this.
Rick
iMac G5 iSight 20" - 30G iPOD in Slimming Black - WD 500G FW - Mac OS X (10.4.8) - HP Pav 15" WS and Toshiba Sat 17" WS LP's - Canon 20D & A620 Kodak P880

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Random power failure / shutdown?

Hey all,
I recently purchased the 20" 2.4 GHz and have been experiencing random power failures. Right in the middle of typing an essay or watching a movie, my computer turns off unexpectedly. Has anyone else experienced this problem or know what might be going on? The only things I could think of are static buildup/discharge in the power supply or overheating...
Thanks!

iRocket wrote:
I have a iMac G5 (purchased 5/05) and I never had an issue with it other than having to manually connect to my home network) Recently (last week) I called Apple Support about my network issue and we did a commandoption+PR during powerup. This is the first time it was ever performed. Since then My iMac turns off (completely) randomly. It doesnt matter if I am surfing the web, watching a movie, or the machine is idle doing nothing, and BAM no power. I'm glad I bought the 3 year Apple iCare package, because it seems that Apple knows in about 3 years, the machines begin failing.
I performed the SMC procedure about 30 minutes ago. I will update this post if I no longer have the loss of power issue again.
That vintage of iMac (and eMac) had a problem with bad capacitors (the problem hit other manufactureres than Apple, too.) If you open up the case and look at the logic board, see if any capacitors (the little barrel-shaped doodahs) are swollen or leaking brown fuzz. If so, Apple had an extended repair program for that, although you're lucky you have Applecare. If you're not comfortable opening the computer (that model is easy, just 3 torx screws along the bottom edge, though it's a little tricky getting the cover back on when you're done), definitely take it to a Mac tech ASAP, as this gets worse with time.
Message was edited by: cavenewt

IMac i7 random power failure?

Hey there, my iMac 21,5 i7 has a random "sudden power failure", which has been diagnosed by an apple maintenance centre as a 'Logic board" problem. It was bought in Jan 2012 and it is plugged into a power surge/no break protection.
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Hello, sad case, but Macs aren't what they used to be, & yes, without AppleCare, a Logic board replacement will be terribly expensive.
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IMac random power failure

HI all - Help!
i Have a 2012 iMac.
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It could be a more serious problem, but it kind of sounds like maybe a bad, loose or partially seated RAM module.
If you have upgraded or added RAM, do and test each of the following steps.
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2. Check for a bad module, install the modules one at a time in the top slot.
3. Install the original modules in the original slot that they came in.
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When the program gets terminated unexpectedly (power failure, UPS fails), when I reopen it, it usually does NOT return the previous pages, as I have checked in the 'options' box,

# Question
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Very Important, how much Free Space is on your Hard Drive first of all? Click on the Macintosh HD on the Desktop, then do a Get Info on it.
Could be many things, we should start with this...
"Try Disk Utility
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http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
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I have an early G5 20" non-iSight iMac that has a power problem that is steadily getting worse.
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Description.
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i am having a similiar issue. I have the same exact computer (iMac G5, non-isight) and it stays on for 30 mins, hour, 3 hours and shuts off. Upon starting up, sometimes it doesn't make it to the login screen before shutting down again. I have downloaded heat temp monitor programs and it seems to get to about 70 degrees celcius sometimes. Upon restarting, I get the "report problem to apple" screen with this information. I have tried to restart the power supply too.
Thu Apr 17 09:02:18 2008
panic(cpu 0 caller 0x008E0BE4): "Missing CPU diode calibration information.\n"@/SourceCache/IOPlatformPluginFamily/IOPlatformPluginFamily-312. 0.1/SMUNeo2_PlatformPlugin/SMU_Neo2CPUTempSensor.cpp:124
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Backtrace:
0x0009B478 0x0009BE1C 0x00029DD4 0x008E0BE4 0x008D0308 0x008CFD78 0x008E309C 0x008D48E8
0x008E2C6C 0x00342B8C 0x00343CE0 0x00345B90 0x00344CB0 0x000B05D4
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.SMUNeo2PlatformPlugin(3.1.2d1)@0x8dc000->0x8eafff
dependency: com.apple.driver.IOPlatformPluginFamily(3.1.2d1)@0x8c9000
com.apple.driver.IOPlatformPluginFamily(3.1.2d1)@0x8c9000->0x8dbfff
Proceeding back via exception chain:
Exception state (sv=0x39e04c80)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
BSD process name corresponding to current thread: kernel_task
Mac OS version:
9C7010
Kernel version:
Darwin Kernel Version 9.2.2: Tue Mar 4 21:23:43 PST 2008; root:xnu-1228.4.31~1/RELEASE_PPC
System model name: PowerMac8,1
*>}

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Hi,
I am using Windows 8.1
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Now it shows "Data error (Cyclic redundancy check)".
I tried all the procedures provided here like
chkdsk /f, diskpart, rescan etc
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Please help me to get those data, pictures and project files.
thank you

Then why aren't you posting this in the Windows 8 forums found @
http://social.technet.microsoft.com/Forums/windows/en-US/home?category=w8itpro
This is a Windows 7 forum for discussion about Windows 7.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”

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Hi
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Many of the CyberPower UPS units are compatible. Checkout the home solutions on this page: http://www.cyberpowersystems.com/products/ups-systems.html

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See this Apple support document.
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B-rock

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    service timestamps debug datetime msec
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       network 192.168.10.0 255.255.255.0
       dns-server 192.168.10.1
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       domain-name Ethernet
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     no ip unreachables
     no ip proxy-arp
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     no ip unreachables
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     no ip redirects
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    bridge 1 route ip
    bridge 2 protocol ieee
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     no modem enable
    line aux 0
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[EDITED]
dot11 syslog
dot11 ssid TooterTurtle
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   authentication key-management wpa
   guest-mode
   wpa-psk ascii 0 [my passphrase]
no ip source-route
no ip gratuitous-arps
ip cef
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.10.1 192.168.10.10
ip dhcp pool vlan1
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   network 192.168.10.0 255.255.255.0
   dns-server 192.168.10.1
   default-router 192.168.10.1
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ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
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ip domain name [my url]
ip ddns update method ccp_ddns1
HTTP
add http:...[zoneedit]
remove http:[zoneedit]
no ip ftp passive
ip ssh version 1
bridge irb
interface FastEthernet0
description AdminInterface
interface FastEthernet1
description MrWizard
interface FastEthernet2
description Belkin
interface FastEthernet3
interface FastEthernet4
description ComcastCableModem
ip address dhcp
ip verify unicast source reachable-via rx allow-default 100
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip virtual-reassembly
speed auto
full-duplex
interface Dot11Radio0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
encryption vlan 1 mode ciphers tkip
ssid TooterTurtle
speed basic-1.0 basic-2.0 basic-5.5 basic-6.0 basic-9.0 basic-11.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0
station-role root
interface Dot11Radio0.1
description TootersWiFi
encapsulation dot1Q 2
no cdp enable
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
interface Vlan1
description EthernetOnly
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat inside
ip virtual-reassembly
bridge-group 1
interface BVI1
description EthernetOnly
ip address 192.168.10.1 255.255.255.0
ip nat inside
ip virtual-reassembly
ip forward-protocol nd
ip http server
ip http authentication local
no ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip dns server
ip nat inside source list 101 interface FastEthernet4 overload
ip nat inside source static tcp 192.168.10.100 80 interface FastEthernet4 80
ip access-list extended vlan1
permit ip any any
access-list 100 permit udp any any eq bootpc
access-list 101 permit ip 192.168.10.0 0.0.0.255 any
no cdp run
control-plane
bridge 1 protocol ieee
bridge 1 route ip

Unable to Load Windows 7 after a power failure

My windows 7 workstation was in a sleep mode when a power failure happened. after trying to power up the machine it tries to resume windows session but stucks after displaying an error unable to find saved session. it gives an option to either delete saved
session and boot or locate the session, but none of the periferal devices are responding, so I am unable to select either option.
I have a standard 102 logitech keyboard connected to that workstation. it works wen I select to enter a bios on the start up, but does not respond to any other prompts.
Any advice?

In addition, try to boot into safe mode and check the results.
Arnav Sharma | http://arnavsharma.net/ Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading
the thread.

This device cannot start. (Code 10) Status Device Power Failure for Intel (R) Audio Display

Hi I just bought HP Envy M7 Sleekbook last week and upgraded from 8.0 to 8.1 for Windows 8.
Now I have no sound and this is the error message I get:
This device cannot start. (Code 10) Status Device Power Failure (for Intel (R) Audio Display)
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Anyone else having this issue after upgrading?
Getting a new lappy is stressful enough but to alreay have issues is ridiculous
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Ahmed, if your HP Envy has an Intel processor chances are it will be necessary to download new drivers for both sound and chipset due to compatibility issues with Windows 8.1. After 4-1/2 hours on the phone with various technical agents and a lot of frustration I finally got one who had the knowledge and training to resolve my issue. I believe he downloaded the new drivers from the HP support site. Good luck!!

Imac will not boot up after power failure

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