Turned power off by mistake - won't restart
I caught the rocker switch on the mains plug before my iMac had shut down properly. It won't restart and I've already tried the trick of holding in the power button for 10 secs with the cable removed...but no joy.
Thing is, I did this once before and it wouldn't restart. I unplugged everything and was going to take it to an Apple service centre - expecting that something had 'blown' (I'd already checked the plug and fuse). It had been left for a couple of days and I thought I would try it one more time....and miraculously it came back to life. It had been a hot day and the iMac had been on for hours when I caught the switch, so I assumed the combination of heat and sudden power drop had trigered some sort of protection system.
After reading lots of threads I've not come across anything that might explain this behaviour. I've unplugged the cable again for over an hour and tried to restart it. Although the mac is totally cool, it won't start up.
I will leave it overnight, but if I'm out of luck this time, what is the likely fault?
The PSU has blown. I will replace my surge protector but wonder if a UPS is required. I'm thinking I shouldn't need one because power outages very rarely happen...it's just my idiot self for turning off the wrong plug.
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When i restarted the computer there was this message (maybe it is useful for resolving my problem):
Interval Since Last Panic Report: 29598 sec
Panics Since Last Report: 2
Anonymous UUID: 0C2CFCCA-8A3F-445F-89D3-99573F5C31AA
Fri Jun 3 19:26:42 2011
panic(cpu 1 caller 0x9cdc8f): NVRM[0/1:0:0]: Read Error 0x00002500: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0x92000000 0x36a0c000 0x084700a2, D0, P0/4
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0xe036b8 : 0x21b510 (0x5d9514 0xe036ec 0x223978 0x0)
0xe03708 : 0x9cdc8f (0xbe323c 0xc53840 0xbf23cc 0x0)
0xe037a8 : 0x15c7a7d (0x6255c04 0x6cd3004 0x2500 0x6cd3004)
0xe037e8 : 0x15b8d5e (0x6cd3004 0x2500 0x0 0x0)
0xe03868 : 0x15af132 (0x6cd3004 0x6d95004 0x41 0xe038a0)
0xe03988 : 0xad3b45 (0x6cd3004 0x6d95004 0x996500c 0x200)
0xe039c8 : 0xb52a66 (0x6cd3004 0x6d95004 0x7bcc52c 0x7bcc504)
0xe03a78 : 0xb542d7 (0x6cd3004 0x6d9d404 0x0 0x0)
0xe03b08 : 0x15adf19 (0x6cd3004 0x6d9d404 0x6 0x2)
0xe03b88 : 0x15b7f8e (0x6cd3004 0x6d95004 0x1010 0xe03c9c)
0xe03cf8 : 0x15ef33e (0x6cd3004 0x6d95004 0x0 0x0)
0xe03e28 : 0xb07250 (0x6cd3004 0x6d13004 0x0 0x0)
0xe03e68 : 0x9d6e23 (0x6cd3004 0x6d13004 0x0 0x0)
0xe03f08 : 0x55125b (0x0 0x63d1780 0x1 0x29f562)
0xe03f58 : 0x55028c (0x63d1780 0x1 0xe03f88 0x54fe43)
0xe03f88 : 0x5506e6 (0x63b73c0 0x6805b7c 0x16808f71 0xffffffff)
0xe03fc8 : 0x2a06dc (0x63b73c0 0x0 0x10 0x66b87a4)
Kernel Extensions in backtrace (with dependencies):
com.apple.nvidia.nv50hal(6.2.6)@0x14c5000->0x18d9fff
dependency: com.apple.NVDAResman(6.2.6)@0x967000
com.apple.NVDAResman(6.2.6)@0x967000->0xc54fff
dependency: com.apple.iokit.IOPCIFamily(2.6)@0x927000
dependency: com.apple.iokit.IONDRVSupport(2.2)@0x95a000
dependency: com.apple.iokit.IOGraphicsFamily(2.2)@0x938000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
10J869
Kernel version:
Darwin Kernel Version 10.7.0: Sat Jan 29 15:17:16 PST 2011; root:xnu-1504.9.37~1/RELEASE_I386
System model name: MacBookPro3,1 (Mac-F4238BC8)
System uptime in nanoseconds: 702931547147
unloaded kexts:
com.apple.driver.AppleFileSystemDriver 2.0 (addr 0x102a000, size 0x12288) - last unloaded 112769797938
loaded kexts:
com.vmware.kext.vmnet 3.0.0 - last loaded 49645686211
com.vmware.kext.vmioplug 3.0.0
com.vmware.kext.vmci 3.0.0
com.vmware.kext.vmx86 3.0.0
com.sophos.kext.sav 7.3.0
com.bresink.driver.BRESINKx86Monitoring 8.0
com.apple.driver.AppleHWSensor 1.9.3d0
com.apple.filesystems.autofs 2.1.0
com.apple.driver.AppleHDA 1.9.9f12
com.apple.kext.AppleSMCLMU 1.5.0d3
com.apple.driver.AppleUpstreamUserClient 3.5.4
com.apple.driver.AppleMCCSControl 1.0.17
com.apple.driver.AirPort.Atheros21 424.14.5
com.apple.driver.AppleIntelMeromProfile 19.1
com.apple.driver.AppleBacklight 170.0.34
com.apple.driver.SMCMotionSensor 3.0.0d4
com.apple.driver.ACPI_SMC_PlatformPlugin 4.5.0d5
com.apple.driver.AudioAUUC 1.54
com.apple.GeForce 6.2.6
com.apple.driver.AppleLPC 1.4.12
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.iokit.CHUDUtils 364
com.apple.iokit.CHUDProf 366
com.apple.driver.AudioIPCDriver 1.1.6
com.apple.driver.AppleUSBTrackpad 200.3.2
com.apple.driver.AppleUSBTCKeyEventDriver 200.3.2
com.apple.driver.AppleUSBTCKeyboard 200.3.2
com.apple.driver.AppleIRController 303.8
com.apple.iokit.SCSITaskUserClient 2.6.5
com.apple.BootCache 31
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.driver.AppleUSBHub 4.1.7
com.apple.iokit.IOAHCIBlockStorage 1.6.3
com.apple.driver.AppleSmartBatteryManager 160.0.0
com.apple.driver.AppleIntelPIIXATA 2.5.1
com.apple.driver.AppleAHCIPort 2.1.5
com.apple.driver.AppleFWOHCI 4.7.1
com.apple.driver.AppleUSBEHCI 4.1.8
com.apple.driver.AppleUSBUHCI 4.1.5
com.apple.iokit.AppleYukon2 3.2.1b1
com.apple.driver.AppleEFINVRAM 1.4.0
com.apple.driver.AppleRTC 1.3.1
com.apple.driver.AppleHPET 1.5
com.apple.driver.AppleACPIButtons 1.3.5
com.apple.driver.AppleSMBIOS 1.6
com.apple.driver.AppleACPIEC 1.3.5
com.apple.driver.AppleAPIC 1.4
com.apple.driver.AppleIntelCPUPowerManagementClient 105.13.0
com.apple.security.sandbox 1
com.apple.security.quarantine 0
com.apple.nke.applicationfirewall 2.1.11
com.apple.driver.AppleIntelCPUPowerManagement 105.13.0
com.apple.driver.DspFuncLib 1.9.9f12
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.driver.AppleHDAController 1.9.9f12
com.apple.iokit.IOHDAFamily 1.9.9f12
com.apple.iokit.IO80211Family 314.1.1
com.apple.driver.AppleProfileReadCounterAction 17
com.apple.driver.IOPlatformPluginFamily 4.5.0d5
com.apple.nvidia.nv50hal 6.2.6
com.apple.NVDAResman 6.2.6
com.apple.iokit.IONDRVSupport 2.2
com.apple.driver.AppleProfileTimestampAction 10
com.apple.driver.AppleProfileThreadInfoAction 14
com.apple.driver.AppleProfileRegisterStateAction 10
com.apple.driver.AppleProfileKEventAction 10
com.apple.driver.AppleProfileCallstackAction 20
com.apple.iokit.IOSurface 74.2
com.apple.iokit.IOGraphicsFamily 2.2
com.apple.iokit.IOBluetoothSerialManager 2.4.0f1
com.apple.iokit.IOSerialFamily 10.0.3
com.apple.driver.AppleSMC 3.1.0d3
com.apple.iokit.CHUDKernLib 365
com.apple.iokit.IOAudioFamily 1.8.0fc1
com.apple.kext.OSvKernDSPLib 1.3
com.apple.iokit.AppleProfileFamily 41.4
com.apple.driver.CSRUSBBluetoothHCIController 2.4.0f1
com.apple.driver.AppleUSBBluetoothHCIController 2.4.0f1
com.apple.iokit.IOBluetoothFamily 2.4.0f1
com.apple.iokit.IOUSBHIDDriver 4.1.5
com.apple.driver.AppleUSBMergeNub 4.1.8
com.apple.driver.AppleUSBComposite 3.9.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.6.5
com.apple.iokit.IOBDStorageFamily 1.6
com.apple.iokit.IODVDStorageFamily 1.6
com.apple.iokit.IOCDStorageFamily 1.6
com.apple.driver.XsanFilter 402.1
com.apple.iokit.IOATAPIProtocolTransport 2.5.1
com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.5
com.apple.iokit.IOUSBUserClient 4.1.5
com.apple.iokit.IOATAFamily 2.5.1
com.apple.iokit.IOAHCIFamily 2.0.4
com.apple.iokit.IOFireWireFamily 4.2.6
com.apple.iokit.IOUSBFamily 4.1.8
com.apple.iokit.IONetworkingFamily 1.10
com.apple.driver.AppleEFIRuntime 1.4.0
com.apple.iokit.IOHIDFamily 1.6.5
com.apple.iokit.IOSMBusFamily 1.1
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 6
com.apple.driver.DiskImages 289
com.apple.iokit.IOStorageFamily 1.6.2
com.apple.driver.AppleACPIPlatform 1.3.5
com.apple.iokit.IOPCIFamily 2.6
com.apple.iokit.IOACPIFamily 1.3.0
Model: MacBookPro3,1, BootROM MBP31.0070.B07, 2 processors, Intel Core 2 Duo, 2.4 GHz, 2 GB, SMC 1.16f11
Graphics: NVIDIA GeForce 8600M GT, GeForce 8600M GT, PCIe, 256 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x87), Atheros 5416: 2.1.14.5
Bluetooth: Version 2.4.0f1, 2 service, 19 devices, 1 incoming serial ports
PCI Card: pci168c,24, sppci_othernetwork, PCI Slot 5
Serial ATA Device: WDC WD5000BEVT-00A0RT0, 465,76 GB
Parallel ATA Device: MATSHITADVD-R UJ-857E
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8502, 0xfd400000
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8205, 0x1a100000
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x021b, 0x5d200000
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0x5d100000
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