Mac Pro HUUUGE PROBLEM (POWER)

Question

Mac Pro HUUUGE PROBLEM (POWER)

hi, i bought my MacPro in August 2011. it has a little more than a year. It is a 2.8 Quad-Core Intel Xeon. i changed my memory to have 12GB 1066MHz DDR3. I have Lion installed on it For the last 6 months approximately i had trouble powering up my mac. when i pressed the power button, it didn't lit up but i was hearing a click. thank 15 seconds later, an other click so i was repressing the power button and it was powering up just fine. But since Saturday night (i'm writing this as of Sunday morning) problems with my machine got REALLY WORSE. Since i'm building myself a new desk for my computer, i unplugged it on friday afternoon and plugged it back saturday night. When i pressed the power button, i powered up on the first time. WEIRD. BUT when i i tried to shut down it, i had a Kernel Panic appearing. So i forced shut down it while holding the power button. When i tried to re-power it, i heard the same click but NEVER the second one that was indicating me to power it like it used to do. so i unplugged the power cord, replugged it then it powered on. but again, on shut down, kernel panic. i did this on and on. So i decided to format my computer, reinstall everything. when lion finished installing, it asked me to restart, so i clicked restart but it never it BUT, the power light was on. So i forced the power off then it booted just fine. Tried a shut down, it went fine. Repower it, i heard a click. I waited, then i heard a second one so i did like always, POWER IT UP. it worked. but kernel panic is back on SHUT DOWN. Seriously, i'm about to take that stupid computer on a bridge and throw it over. I bought this computer 3150 CAN $. it over 1 year so i don't have a warranty anymore. Since, i didn't buy the apple care. So please, could someone help me with that. I'd be forever graceful.

Mac Pro, Mac OS X (10.7)

Posted on Oct 7, 2012 9:29 AM

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Answer 1

Oct 7, 2012 1:21 PM in response to latulippe_vincent

Anyone?

Reply

Answer 2

Oct 7, 2012 1:35 PM in response to latulippe_vincent

A kernel panic is not ONE problem, there may be hundreds of possible reasons for it. Looking at the kernel panic log will often help solve the underlying problem. These logs are saved, and can be read out later. Please use this procedure, get the latest kernel panic log, and paste the text here.

Mac OS X: How to log a kernel panic

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Answer 3

The hatter

Level 9

60,980 points

Oct 7, 2012 1:43 PM in response to latulippe_vincent

Try re-reading. And a rewrite before you hit POST. There needs to be Preview. And oddly a first post cannot be edited the way normal posts in a thread can be.

Run Apple Hardware Test

Run Memtest

Swap out the graphic card with anything you have.

Might even want to try $19 10.8.2

Swap out RAM - every half decent vendor if it is at fault will replace set.

----------------

August 2011. it has a little more than a year. It is a 2.8 Quad-Core Intel Xeon. i changed my memory to have 12GB 1066MHz DDR3. I have Lion installed on it For the last 6 months approximately i had trouble powering up my mac. when i pressed the power button,

----------------

Mac Pro 5,1

You could downgrade it to 10.6.8 on another drive

You should (anyone) have multiple boot drives and clone of system for backup.

Six months and you waited for now?

Had you acted even up into July-Aug you could have gotten extended warranty and had it looked at after a week or two rather than live with trouble for six months.

.......

it didn't lit up but i was hearing a click. thank 15 seconds later, an other click so i was repressing the power button and it was powering up just fine.

But since Saturday night (i'm writing this as of Sunday morning) problems with my machine got REALLY WORSE.

Since i'm building myself a new desk for my computer, i unplugged it on friday afternoon and plugged it back saturday night. When i pressed the power button, i powered up on the first time. WEIRD.

BUT when i i tried to shut down it, i had a Kernel Panic appearing. So i forced shut down it while holding the power button. When i tried to re-power it, i heard the same click but NEVER the second one that was indicating me to power it like it used to do. so i unplugged the power cord, replugged it then it powered on. but again, on shut down, kernel panic. i did this on and on.

So i decided to format my computer, reinstall everything. when lion finished installing, it asked me to restart, so i clicked restart but it never it

BUT, the power light was on. So i forced the power off then it booted just fine. Tried a shut down, it went fine. Repower it, i heard a click. I waited, then i heard a second one so i did like always, POWER IT UP.

it worked. but kernel panic is back on SHUT DOWN.

Seriously, i'm about to take that stupid computer on a bridge and throw it over. I bought this computer 3150 CAN $. it over 1 year so i don't have a warranty anymore.

You did, and you had until 11th hour to buy extension.

Since, i didn't buy the apple care. So please, could someone help me with that. I'd be forever graceful.

-----------------------------

Trying to do SMC RESET: press power button while unplugged for 10 seconds.

Freezes and such lead to minor or worse directory error.

Apple FAQ for won't startup or power on or boot.

Take it in if the basic tips don't work.

RAM is always #1 culprit. As are graphic card failures.

Test with original RAM. With just new RAM. With just one stick in slot #1

See Apple tech note: How to install Memory in Mac Pro.

don't you now wish and think that would have been a good $2xx investment, about the same as a good 1500VA UPS, also good insurance. Or the price of a new ATI 5770 if need be. Even into July 3 months ago...

There is no easy solution.

Reply

Answer 4

Oct 7, 2012 2:55 PM in response to Grant Bennet-Alder

Sun Oct 7 17:48:16 2012

panic(cpu 0 caller 0xffffff80002c4794): Kernel trap at 0xffffff80002cfce0, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0xffffff8181c7fa20, CR3: 0x0000000000100000, CR4: 0x0000000000000660

RAX: 0x00000000000000ff, RBX: 0x0000000000100000, RCX: 0x0000000000000040, RDX: 0xffffff800072e760

RSP: 0xffffff815f0ebeb0, RBP: 0xffffff815f0ebf30, RSI: 0xffffff81387f6000, RDI: 0x0000000000000010

R8: 0xffffff8181c7fa20, R9: 0x0000000000000040, R10: 0x0000000000000040, R11: 0x0000000000000000

R12: 0x000000000000bf00, R13: 0x0000000000000000, R14: 0x0000000000bfbfbf, R15: 0x0000000000000400

RFL: 0x0000000000010002, RIP: 0xffffff80002cfce0, CS: 0x0000000000000008, SS: 0x0000000000000010

CR2: 0xffffff8181c7fa20, Error code: 0x0000000000000000, Faulting CPU: 0x0

Backtrace (CPU 0), Frame : Return Address

0xffffff815f0ebb60 : 0xffffff8000220792

0xffffff815f0ebbe0 : 0xffffff80002c4794

0xffffff815f0ebd90 : 0xffffff80002da55d

0xffffff815f0ebdb0 : 0xffffff80002cfce0

0xffffff815f0ebf30 : 0xffffff80002d28e1

0xffffff815f0ebf70 : 0xffffff800023dbbc

0xffffff815f0ebfb0 : 0xffffff8000820057

BSD process name corresponding to current thread: kernel_task

Mac OS version:

11G56

Kernel version:

Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64

Kernel UUID: FF3BB088-60A4-349C-92EA-CA649C698CE5

System model name: MacPro5,1 (Mac-F221BEC8)

System uptime in nanoseconds: 1762620897130

last loaded kext at 338070377671: com.apple.filesystems.smbfs 1.7.2 (addr 0xffffff7f80795000, size 241664)

last unloaded kext at 323370029896: com.apple.driver.AppleFileSystemDriver 13 (addr 0xffffff7f812b1000, size 12288)

loaded kexts:

com.apple.filesystems.smbfs 1.7.2

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AudioAUUC 1.59

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.driver.AppleUpstreamUserClient 3.5.9

com.apple.iokit.IOBluetoothSerialManager 4.0.8f17

com.apple.driver.AppleMikeyHIDDriver 122

com.apple.driver.AppleMCCSControl 1.0.33

com.apple.driver.AppleBluetoothMultitouch 70.12

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleTyMCEDriver 1.0.2d2

com.apple.driver.AGPM 100.12.75

com.apple.driver.AppleMikeyDriver 2.2.5a5

com.apple.kext.ATIFramebuffer 7.3.2

com.apple.driver.Intel82574L 2.2.0b3

com.apple.driver.AppleHDA 2.2.5a5

com.apple.driver.AudioIPCDriver 1.2.3

com.apple.ATIRadeonX3000 7.3.2

com.apple.driver.ApplePolicyControl 3.1.33

com.apple.driver.AirPort.Brcm4331 561.7.22

com.apple.driver.ACPI_SMC_PlatformPlugin 5.0.0d8

com.apple.driver.AppleLPC 1.6.0

com.apple.filesystems.autofs 3.0

com.apple.driver.BroadcomUSBBluetoothHCIController 4.0.8f17

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.1.0

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 33

com.apple.iokit.SCSITaskUserClient 3.2.1

com.apple.iokit.IOAHCISerialATAPI 2.0.3

com.apple.driver.AppleFWOHCI 4.9.0

com.apple.driver.AppleUSBHub 5.1.0

com.apple.driver.AppleAHCIPort 2.3.1

com.apple.driver.AppleUSBEHCI 5.1.0

com.apple.driver.AppleUSBUHCI 5.1.0

com.apple.driver.AppleEFINVRAM 1.6.1

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleHPET 1.7

com.apple.driver.AppleACPIButtons 1.5

com.apple.driver.AppleSMBIOS 1.9

com.apple.driver.AppleACPIEC 1.5

com.apple.driver.AppleAPIC 1.6

com.apple.driver.AppleIntelCPUPowerManagementClient 195.0.0

com.apple.nke.applicationfirewall 3.2.30

com.apple.security.quarantine 1.4

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleIntelCPUPowerManagement 195.0.0

com.apple.iokit.IOSurface 80.0.2

com.apple.iokit.IOSerialFamily 10.0.5

com.apple.driver.AppleMultitouchDriver 231.4

com.apple.driver.IOBluetoothHIDDriver 4.0.8f17

com.apple.driver.DspFuncLib 2.2.5a5

com.apple.iokit.IOAudioFamily 1.8.6fc18

com.apple.kext.OSvKernDSPLib 1.3

com.apple.driver.AppleSMBusController 1.0.10d0

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.driver.AppleHDAController 2.2.5a5

com.apple.iokit.IOHDAFamily 2.2.5a5

com.apple.driver.AppleGraphicsControl 3.1.33

com.apple.iokit.IONDRVSupport 2.3.4

com.apple.iokit.IO80211Family 420.3

com.apple.iokit.IONetworkingFamily 2.1

com.apple.driver.AppleSMC 3.1.3d10

com.apple.driver.IOPlatformPluginLegacy 5.0.0d8

com.apple.driver.AppleSMBusPCI 1.0.10d0

com.apple.driver.IOPlatformPluginFamily 5.1.1d6

com.apple.kext.ATI5000Controller 7.3.2

com.apple.kext.ATISupport 7.3.2

com.apple.iokit.IOGraphicsFamily 2.3.4

com.apple.kext.triggers 1.0

com.apple.driver.AppleUSBBluetoothHCIController 4.0.8f17

com.apple.iokit.IOBluetoothFamily 4.0.8f17

com.apple.driver.AppleUSBHIDKeyboard 160.7

com.apple.driver.AppleHIDKeyboard 160.7

com.apple.iokit.IOUSBHIDDriver 5.0.0

com.apple.driver.AppleUSBMergeNub 5.1.0

com.apple.driver.AppleUSBComposite 5.0.0

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.2.1

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.2.1

com.apple.iokit.IOFireWireFamily 4.4.8

com.apple.iokit.IOUSBUserClient 5.0.0

com.apple.iokit.IOAHCIFamily 2.0.8

com.apple.iokit.IOUSBFamily 5.1.0

com.apple.driver.AppleEFIRuntime 1.6.1

com.apple.iokit.IOHIDFamily 1.7.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 177.8

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.DiskImages 331.7

com.apple.iokit.IOStorageFamily 1.7.2

com.apple.driver.AppleKeyStore 28.18

com.apple.driver.AppleACPIPlatform 1.5

com.apple.iokit.IOPCIFamily 2.7

com.apple.iokit.IOACPIFamily 1.4

Reply

Answer 5

Oct 7, 2012 3:12 PM in response to latulippe_vincent

i just putted the old memory in and it still have problems. i was hearing the clicking noise, i waited to hear the second one and it powered up.

Reply

Answer 6

Oct 7, 2012 3:32 PM in response to latulippe_vincent

i just got an other kernel panic at the closing WITH THE OLD MEMORY IN IT.

Interval Since Last Panic Report: 3705 sec

Panics Since Last Report: 6

Anonymous UUID: E973A374-FDB6-4440-81FF-54039914BAD4

Sun Oct 7 18:31:27 2012

panic(cpu 0 caller 0xffffff80002c4794): Kernel trap at 0xffffff80002cfce0, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0xffffff808646da20, CR3: 0x0000000000100000, CR4: 0x0000000000000660

RAX: 0x00000000000000ff, RBX: 0x0000000000100000, RCX: 0x0000000000000040, RDX: 0xffffff800072e760

RSP: 0xffffff805db1beb0, RBP: 0xffffff805db1bf30, RSI: 0xffffff80511b8000, RDI: 0x0000000000000010

R8: 0xffffff808646da20, R9: 0x0000000000000040, R10: 0x0000000000000040, R11: 0x0000000000000000

R12: 0x000000000000bf00, R13: 0x0000000000000000, R14: 0x0000000000bfbfbf, R15: 0x0000000000000400

RFL: 0x0000000000010002, RIP: 0xffffff80002cfce0, CS: 0x0000000000000008, SS: 0x0000000000000010

CR2: 0xffffff808646da20, Error code: 0x0000000000000000, Faulting CPU: 0x0

Backtrace (CPU 0), Frame : Return Address

0xffffff805db1bb60 : 0xffffff8000220792

0xffffff805db1bbe0 : 0xffffff80002c4794

0xffffff805db1bd90 : 0xffffff80002da55d

0xffffff805db1bdb0 : 0xffffff80002cfce0

0xffffff805db1bf30 : 0xffffff80002d28e1

0xffffff805db1bf70 : 0xffffff800023dbbc

0xffffff805db1bfb0 : 0xffffff8000820057

BSD process name corresponding to current thread: kernel_task

Mac OS version:

11G56

Kernel version:

Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64

Kernel UUID: FF3BB088-60A4-349C-92EA-CA649C698CE5

System model name: MacPro5,1 (Mac-F221BEC8)

System uptime in nanoseconds: 1073910939834

last loaded kext at 385465466091: com.apple.filesystems.smbfs 1.7.2 (addr 0xffffff7f80795000, size 241664)

last unloaded kext at 101389303957: com.apple.driver.AppleIntel8254XEthernet 2.1.3b1 (addr 0xffffff7f80c92000, size 110592)

loaded kexts:

com.apple.filesystems.smbfs 1.7.2

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AppleBluetoothMultitouch 70.12

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleMikeyHIDDriver 122

com.apple.driver.AudioAUUC 1.59

com.apple.driver.AppleUpstreamUserClient 3.5.9

com.apple.driver.AppleMCCSControl 1.0.33

com.apple.kext.ATIFramebuffer 7.3.2

com.apple.driver.AppleHDA 2.2.5a5

com.apple.driver.AppleMikeyDriver 2.2.5a5

com.apple.ATIRadeonX3000 7.3.2

com.apple.driver.AppleTyMCEDriver 1.0.2d2

com.apple.driver.AGPM 100.12.75

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.iokit.IOBluetoothSerialManager 4.0.8f17

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AudioIPCDriver 1.2.3

com.apple.driver.ApplePolicyControl 3.1.33

com.apple.driver.ACPI_SMC_PlatformPlugin 5.0.0d8

com.apple.driver.AppleLPC 1.6.0

com.apple.driver.BroadcomUSBBluetoothHCIController 4.0.8f17

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.1.0

com.apple.iokit.SCSITaskUserClient 3.2.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 33

com.apple.driver.AppleFWOHCI 4.9.0

com.apple.iokit.IOAHCISerialATAPI 2.0.3

com.apple.driver.AirPort.Brcm4331 561.7.22

com.apple.driver.AppleUSBHub 5.1.0

com.apple.driver.Intel82574L 2.2.0b3

com.apple.driver.AppleEFINVRAM 1.6.1

com.apple.driver.AppleAHCIPort 2.3.1

com.apple.driver.AppleUSBEHCI 5.1.0

com.apple.driver.AppleUSBUHCI 5.1.0

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleHPET 1.7

com.apple.driver.AppleACPIButtons 1.5

com.apple.driver.AppleSMBIOS 1.9

com.apple.driver.AppleACPIEC 1.5

com.apple.driver.AppleAPIC 1.6

com.apple.driver.AppleIntelCPUPowerManagementClient 195.0.0

com.apple.nke.applicationfirewall 3.2.30

com.apple.security.quarantine 1.4

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleIntelCPUPowerManagement 195.0.0

com.apple.driver.AppleMultitouchDriver 231.4

com.apple.driver.IOBluetoothHIDDriver 4.0.8f17

com.apple.kext.triggers 1.0

com.apple.driver.DspFuncLib 2.2.5a5

com.apple.driver.AppleSMBusController 1.0.10d0

com.apple.kext.ATI5000Controller 7.3.2

com.apple.kext.ATISupport 7.3.2

com.apple.iokit.IOSurface 80.0.2

com.apple.iokit.IOSerialFamily 10.0.5

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.iokit.IOAudioFamily 1.8.6fc18

com.apple.kext.OSvKernDSPLib 1.3

com.apple.driver.AppleHDAController 2.2.5a5

com.apple.iokit.IOHDAFamily 2.2.5a5

com.apple.driver.AppleGraphicsControl 3.1.33

com.apple.iokit.IONDRVSupport 2.3.4

com.apple.iokit.IOGraphicsFamily 2.3.4

com.apple.driver.AppleSMC 3.1.3d10

com.apple.driver.IOPlatformPluginLegacy 5.0.0d8

com.apple.driver.AppleSMBusPCI 1.0.10d0

com.apple.driver.IOPlatformPluginFamily 5.1.1d6

com.apple.driver.AppleUSBBluetoothHCIController 4.0.8f17

com.apple.iokit.IOBluetoothFamily 4.0.8f17

com.apple.driver.AppleUSBHIDKeyboard 160.7

com.apple.driver.AppleHIDKeyboard 160.7

com.apple.iokit.IOUSBHIDDriver 5.0.0

com.apple.driver.AppleUSBMergeNub 5.1.0

com.apple.driver.AppleUSBComposite 5.0.0

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.2.1

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOFireWireFamily 4.4.8

com.apple.iokit.IOSCSIArchitectureModelFamily 3.2.1

com.apple.iokit.IO80211Family 420.3

com.apple.iokit.IOUSBUserClient 5.0.0

com.apple.iokit.IONetworkingFamily 2.1

com.apple.iokit.IOAHCIFamily 2.0.8

com.apple.driver.AppleEFIRuntime 1.6.1

com.apple.iokit.IOUSBFamily 5.1.0

com.apple.iokit.IOHIDFamily 1.7.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 177.8

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.DiskImages 331.7

com.apple.iokit.IOStorageFamily 1.7.2

com.apple.driver.AppleKeyStore 28.18

com.apple.driver.AppleACPIPlatform 1.5

com.apple.iokit.IOPCIFamily 2.7

com.apple.iokit.IOACPIFamily 1.4

Model: MacPro5,1, BootROM MP51.007F.B03, 4 processors, Quad-Core Intel Xeon, 2.8 GHz, 12 GB, SMC 1.39f11

Graphics: ATI Radeon HD 5770, ATI Radeon HD 5770, PCIe, 1024 MB

Memory Module: DIMM 1, 4 GB, DDR3 ECC, 1066 MHz, 0x857F, 0x463732353155363446393333334700000000

Memory Module: DIMM 2, 4 GB, DDR3 ECC, 1066 MHz, 0x857F, 0x463732353155363446393333334700000000

Memory Module: DIMM 3, 4 GB, DDR3 ECC, 1066 MHz, 0x857F, 0x463732353155363446393333334700000000

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8E), Broadcom BCM43xx 1.0 (5.106.198.19.22)

Bluetooth: Version 4.0.8f17, 2 service, 18 devices, 1 incoming serial ports

PCI Card: ATI Radeon HD 5770, sppci_displaycontroller, Slot-1

Serial ATA Device: HL-DT-ST DVD-RW GH41N

Serial ATA Device: WDC WD1001FALS-41Y6A0, 1 TB

Serial ATA Device: ST1000DM003-9YN162, 1 TB

Serial ATA Device: WDC WD15EARS-00MVWB0, 1.5 TB

USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfd300000 / 2

USB Device: Apple Keyboard, apple_vendor_id, 0x0221, 0xfd320000 / 3

USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x5a100000 / 2

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0x5a110000 / 5

FireWire Device: built-in_hub, 800mbit_speed

Reply

Answer 7

Oct 7, 2012 4:34 PM in response to latulippe_vincent

Those are two matching and very boring Kernel panics. You got a page fault for no reason in what should be a plain-vanilla install of Mac OS X -- which should never get a page fault like that.

As The hatter suggested above, you should run Apple Hardware Test. False negatives are frequent, but anything it finds is definitely not to be ignored.

If nothing is found, my next suggestion would be to re-install Mac OS X.

Reply

Answer 8

Oct 7, 2012 10:14 PM in response to Grant Bennet-Alder

i just did the AHT and i did the Extended one and told me that there was no problem. but i still have my stupid problem. i really don't know what to do... maybe it is the power supply

Reply

Answer 9

Oct 8, 2012 7:20 AM in response to latulippe_vincent

i suspect the power supply because those ''clicking'' sound. When i press the power buton, it clicks from ''behind'' the computer. And when i'm not hearing the second one that tells me to power it, i unplug the power cord and as soon as i pull it off, there's an other clickin sound. Could a faulty power supply do the ''powering up'' problem AND the kernel panic? Sometimes when i try ti shut it down, it kinda shut down.the screen goes black, i hear the hard drive sut off BUT the light on the front and a fan is still running. I noticed that i my computer is asleep, i'm not able to turn it back on. Could the power supply do all that?

Reply

Answer 10

Oct 8, 2012 9:38 AM in response to latulippe_vincent

latulippe_vincent wrote:

...And when i'm not hearing the second one that tells me to power it, i unplug the power cord and as soon as i pull it off, there's an other clickin sound...

When you plug the power cord back into the back of the Mac, do you hear the click from behind the computer again? I noticed that while rerouting some cables, and since my Mac Pro isn't presenting problems, I'd assume that click is normal.

Reply

Answer 11

Oct 9, 2012 1:41 PM in response to latulippe_vincent

I just arrived from work. Press the power button, heard a "click"...i waited for the second one but it never came so i unplugged the power cord, heard the click sound as soon as i pull it off. When i putted it back, there was no clicking sound no. But i waited 2/3 seconds, press the power button and it started. I still have problem at shutdown EVERYTIME. It's either a kernel panic or it shuts down but the power light is still on and the fan in running or finally, i get the white screen just as a normal shut down but it's not shutting down. Does anyone have a clue about what is my problem? If its needed, i'll try to film it and pu it on youtube

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Answer 12

Oct 9, 2012 8:13 PM in response to latulippe_vincent

Anyone ? Please

Reply

Answer 13

Oct 10, 2012 8:10 AM in response to latulippe_vincent

You do not appear to have responded to my suggestion that you completely re-install Mac OS X.

Have you checked the PRAM Backup battery, half-hidden behind the graphics card? Do not bend the retainer when removing it. A new BR2032 long-life Lithium battery should measure about 3 Volts, and be readily available for under US$5. They are used in garage door opener controls and car door lock key fobs.

Power is a Hardware problem. No amount of fiddling is going to fix it. If your theory is correct, you will need service.

Reply

Answer 14

Landre

Level 1

0 points

Oct 11, 2012 2:29 AM in response to latulippe_vincent

Try the following:

Try pressing and holding the SHIFT key while pressing the power button.

Reply

Answer 15

Oct 12, 2012 8:02 AM in response to latulippe_vincent

hi, heres some update, i let my mac unplugged for a couple of days to give me some space to finish building/insallting my new desk. i plugged it this morning/press the power button, it made a little click then powered off by itself. I STILL HAVE PROBLEMS AT SHUTING DOWN. So right now, i'm repairing permissions and if this doesn't work, i'll do a clean install of my hard drive. Does anybody have a clue about whats is my problem with powering it on/off (with kernel panic at shut down)

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