whetty101

Q: Lion randomly crashes - black screen

Lion crashes ever now and thenand stays on a black screen. Its totally unresponsive, all I can do is force shut down but I've done this about 4 times already today any idea what's going on, or how to fix?

 

Thanks!

Posted on Jul 20, 2011 2:55 PM

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Q: Lion randomly crashes - black screen

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  • by gavingough,

    gavingough gavingough Sep 12, 2011 11:51 AM in response to techman28
    Level 1 (0 points)
    Sep 12, 2011 11:51 AM in response to techman28

    Sorry to hear that @techman28. Are you able to tell from the System Profile what graphics card is installed on your new logic board?

     

    [Apple menu icon ] [About this mac] [more info] [system report] [Graphics/Displays] - look at the top of the results panel to see which cards are installed.

     

    Do you still have an NVIDIA GT330M?

  • by techman28,

    techman28 techman28 Sep 12, 2011 11:53 AM in response to gavingough
    Level 1 (0 points)
    Sep 12, 2011 11:53 AM in response to gavingough

    Yes the graphics card is still the NVIDIA GT330M.

  • by gavingough,

    gavingough gavingough Sep 12, 2011 12:05 PM in response to techman28
    Level 1 (0 points)
    Sep 12, 2011 12:05 PM in response to techman28

    That sounds promising. And you've been able to turn off the gfxCardSatus app, if you had it, and switch Automatic Graphics Switching back on?

     

    If so, that really is a result and one that we should ll be aiming for.

  • by klackenstam,

    klackenstam klackenstam Sep 12, 2011 12:06 PM in response to techman28
    Level 1 (0 points)
    Sep 12, 2011 12:06 PM in response to techman28

    Sorry to hear that your getting BSOD with your new logicboard techman.

     

    I however got good news from my repair place here in Stockholm.

    They managed to reproduce the issues ive had and found a "sensor" issue with my logicboard and are replacing it tomorrow.

     

    Im going to ask what kid of sensor issue it was and post it here.

     

    My computer is out of warranty but because Ive been ******** about a graphic issue since february this year they agreed to help me.

     

    I really hope my new logicboard will be from a different batch.

     

    Ill keep you posted.

  • by SpikyJake,

    SpikyJake SpikyJake Sep 12, 2011 12:12 PM in response to gavingough
    Level 1 (0 points)
    Sep 12, 2011 12:12 PM in response to gavingough

    Yup.  I've quit gfxcardstatus and made sure my automatic graphics switching was enabled in my powersaver preferences and tried many graphics intensive things at once (that before individually would cause the computer to crash) and I've had no problems.

  • by thomasv23,

    thomasv23 thomasv23 Sep 12, 2011 12:46 PM in response to pjfish
    Level 1 (0 points)
    Sep 12, 2011 12:46 PM in response to pjfish

    Just chiming in - I bought an iMac 27" 2011 (6 weeks ago)with SL, no problems, updated OS to Lion and experience now the same issues BSOD. Got worse every day - crashes in safe mode, crashes upon return from sleep, no kernel panic, just random and frequent BSOD. Bad news, I bought it from a local dealer - let's see how they react to replacing the board - btw, would immediately go back to SL, but I do not even GET there :-)

    Great investment 1650€ going south....

     

    Thanks to all of you for the discussion, at least I now have a clue that I do not seem to be the only one with Lion problems, hardware issues or whatever.....

  • by RichHolland,

    RichHolland RichHolland Sep 12, 2011 12:52 PM in response to whetty101
    Level 1 (0 points)
    Sep 12, 2011 12:52 PM in response to whetty101

    Just adding my experience...

     

    I have had the BSOD a bunch ... sometimes more than once a day, but not usually. It all started right after I upgraded to Lion. I can't detect a pattern for when it happens. Keyboard light stays one when the screen goes black. Only thing I can do to get the machine to respond is push the power button.

     

    Mid 2010 MBP

    15" Hi Res screen

    2.53GHz Core i5

    NVIDIA GeForce GT 330M

  • by Greg Schueler,

    Greg Schueler Greg Schueler Sep 12, 2011 1:49 PM in response to whetty101
    Level 1 (15 points)
    Sep 12, 2011 1:49 PM in response to whetty101

    I just want to chime in that this exact thing is happening to me with a 2010 MB pro

     

      Model Name:          MacBook Pro

      Model Identifier:          MacBookPro6,2

      Processor Name:          Intel Core i7

      Processor Speed:          2.66 GHz

      Number of Processors:          1

     

    It seems that if there is a Kernel Panic while not connected to my second monitor, the screen goes black and the system dies.

     

    It also seems cause or be related to weird Bluetooth issues.  After the crashes i would have issues with my magic mouse and apple wireless keyboard.

     

    I reinstalled Lion and that seemed to fix the bluetooth issues, until again this weekend i got the black screen kernel panic.  Now bluetooth is screwed up again.  There are numerous errors printed about bluetooth in the kernel.log, and even if my mouse "connects" it doesn't work. I have to re-pair it. 

     

    I had the same problems before I reinstalled, and the kernel panics got worse, so now I'm afraid to use bluetooth at all.

     

    If it happens while my computer is connected to my external display, I can see the normal gray/multi-language Kernel Panic information before it restarts.

  • by techman28,

    techman28 techman28 Sep 12, 2011 2:05 PM in response to techman28
    Level 1 (0 points)
    Sep 12, 2011 2:05 PM in response to techman28

    Well I called up AppleCare and he checked with the apple store and it turns out they didn't actually replace the logic board. Even though they said they did, apparently hey didnt. So he talked to them and made it so this time once I drop it off it will go right to being replace and they said they would "expidite" it for me because of what happened. So I just got home again after driving all the way back to the store to drop it off again. Hopefully this time once the logic board is actually replaced it will fix the issue.

  • by aexis,

    aexis aexis Sep 12, 2011 2:16 PM in response to techman28
    Level 1 (0 points)
    Sep 12, 2011 2:16 PM in response to techman28

    I brought my macbook pro 15" in last week (mid 2010 just like everyone else). The apple genius team was courteous and they said they would replace the logic board after it crashed over and over again in store. About a week later now they said the replacement logic board was faulty, so they will need to order another one.

     

    Something is definetly wrong with the logicboards for the macbook and also it seems some of the new batches to replace them. So far the original logic board had to be discarded, the replacement one was faulty, and now a 3rd one is on it's way. Why would the original logic boards AND the brand new replacement logic boards be faulty too?

     

    Kind of odd but I hope the third logic board will fix the issue, have been without laptop for work for over a week now.

  • by Tess888,

    Tess888 Tess888 Sep 12, 2011 2:16 PM in response to derBonsaii
    Level 1 (5 points)
    Sep 12, 2011 2:16 PM in response to derBonsaii

    That's just wonderful..the Betas make things worse??? Thanks for sharing this information...Right now, after 3 weeks of BSOD, crashes, and overheating, my finicky Lion MBP mid 2010, i7, has decided that it's going to work now...a little over two weeks without problems so far...I have a box that Apple sent for service by my desk, and I wave it in front of the computer every day to remind it what's going to happen to it if it goes haywire again...I've decided that I'm going to stay with OS X.7.1 so I can finally get some work done...I won't be upgrading anymore until Apple get's their act together and remembers that all of their customers are important, not just those who happen to be buying new computers. I, for one, am not going to forget this unpleasant experience.

     


    derBonsaii wrote:

     

    Is anyone of you from Switzerland?

     

     

    the new Betas don't solve the problems, i have more problems now!

     

    my MBP crashes also with the Intel graphic card!!

     

     

    is there nothing that we can do, because i think it doesn't interess Apple a lot ...

  • by Tess888,

    Tess888 Tess888 Sep 12, 2011 2:21 PM in response to aexis
    Level 1 (5 points)
    Sep 12, 2011 2:21 PM in response to aexis

    Apple and Nvidia have severed their business relationship...AMD is now the new flavor of the month. Apple has logic boards that were probably manufactured about the same time as many of our computers...why shouldn't these boards be defective as well?

  • by Ian Kelleigh,

    Ian Kelleigh Ian Kelleigh Sep 12, 2011 2:34 PM in response to aexis
    Level 2 (167 points)
    iTunes
    Sep 12, 2011 2:34 PM in response to aexis

    It's stories about how people have had the mobo replaced 2-3 times before it works, that leads me to believe that it is more of a software issue than hardware.

     

    I'll be curious if when they release new updates to Lion, if these newly replaced "working" mobos will still be working fine without lockups.

  • by Deskatur,

    Deskatur Deskatur Sep 12, 2011 4:40 PM in response to Ian Kelleigh
    Level 1 (0 points)
    Sep 12, 2011 4:40 PM in response to Ian Kelleigh

    Last Friday i went to apple store and talk about the problem with my macbook pro Intel Core i7  / NVIDIA GT330M

    graphics issue and i was surprise what the technician said to me about the replasing the logic board .

     

    He said that "replaced parts install to systems is not new parts" .. not brand new ( repared parts )

     

    I think thats why most of guys replaced  logic board didnt fix the problem , It shoud be brand new

     

    This is my latest BSOD error / Snow leopard 10.6.8 ( yes even in snow leopard but not that often as lion)

     

     

    Interval Since Last Panic Report:  396220 sec

    Panics Since Last Report:          4

    Anonymous UUID:                    A2C7486A-F02E-4A90-AFE2-BF555A6B3B83

     

     

    Tue Sep 13 06:52:22 2011

    panic(cpu 3 caller 0x9d4c97): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xc0000000 0xa6869000 0x0a5480a2, D0, P2/4

    Backtrace (CPU 3), Frame : Return Address (4 potential args on stack)

    0x83ad1de8 : 0x21b837 (0x5dd7fc 0x83ad1e1c 0x223ce1 0x0)

    0x83ad1e38 : 0x9d4c97 (0xbea22c 0xc5a840 0xbf8f88 0x0)

    0x83ad1ed8 : 0xaef5db (0xe0a5c04 0xdd8c004 0x100 0x500)

    0x83ad1f28 : 0xae65d4 (0xdd8c004 0x100 0x83ad1f58 0x9c4774)

    0x83ad1f58 : 0x1742965 (0xdd8c004 0x100 0x438004ee 0x76a)

    0x83ad2098 : 0xb0e258 (0xdd8c004 0xdd81004 0x0 0x0)

    0x83ad20d8 : 0x9dde2b (0xdd8c004 0xdd81004 0x0 0x0)

    0x83ad2178 : 0x9da50a (0x0 0x9 0x0 0x0)

    0x83ad2328 : 0x9db256 (0x0 0x600d600d 0x7058 0x83ad2358)

    0x83ad23f8 : 0xc85e49 (0xc1d00041 0xbeef0003 0xbeef0202 0x181fd600)

    0x83ad2448 : 0xc85fce (0x6d196000 0x181fd600 0x266da000 0x0)

    0x83ad2478 : 0xc5d484 (0x6d196000 0x181fd600 0x266da000 0x0)

    0x83ad2498 : 0xc7eeb2 (0x6d196000 0x181be800 0x83ad24c8 0x55f3f4)

    0x83ad24d8 : 0xc7eccd (0x6d196000 0x181be800 0x83ad2508 0x506769)

    0x83ad2508 : 0xc7ec45 (0x6d196000 0x15b6be00 0x181be800 0x2)

    0x83ad2538 : 0xc7efa7 (0x6d196000 0x15b6be00 0x1835f800 0x18529800)

    0x83ad2558 : 0xca2e69 (0x15b6be00 0x1835f800 0x6d55a788 0x81)

    0x83ad25a8 : 0xca33d6 (0x6d55a000 0x6d55a788 0x83ad28cc 0x83ad286c)

    0x83ad28e8 : 0xca01a1 (0x6d55a000 0x6d55a788 0x1 0x0)

    0x83ad2908 : 0xc6788f (0x6d55a000 0x6d55a788 0x0 0x0)

    0x83ad2938 : 0xca1c64 (0x6d55a000 0x83ad2a7c 0x83ad2968 0x6d55a000)

    0x83ad2978 : 0xc6bc93 (0x6d55a000 0x83ad2a7c 0x83ad2a7c 0x83ad29e0)

    0x83ad2ab8 : 0xca55d8 (0x6d55a000 0x1 0x83ad2bcc 0x83ad2bc8)

    0x83ad2b68 : 0xc67fe1 (0x6d55a000 0x1 0x83ad2bcc 0x83ad2bc8)

    0x83ad2be8 : 0x56da06 (0x6d55a000 0x0 0x83ad2e3c 0x83ad2c74)

    0x83ad2c38 : 0x56e2a5 (0xcf6720 0x6d55a000 0x15818b88 0x1)

    0x83ad2c88 : 0x56eb59 (0x6d55a000 0x10 0x83ad2cd0 0x0)

    0x83ad2da8 : 0x286638 (0x6d55a000 0x10 0x15818b88 0x1)

    0x83ad3e58 : 0x21dbe5 (0x15818b60 0x183ea5a0 0xb2578 0x10403)

    0x83ad3e98 : 0x210a86 (0x15818b00 0x0 0x184dbf10 0x185128f0)

    0x83ad3ef8 : 0x216f84 (0x15818b00 0x0 0x0 0x0)

    0x83ad3f78 : 0x295c57 (0xe2dc608 0x0 0x0 0x0)

    0x83ad3fc8 : 0x2a256d (0xe2dc604 0x0 0x10 0x0)

          Kernel Extensions in backtrace (with dependencies):

             com.apple.GeForce(6.3.6)@0xc5c000->0xd12fff

                dependency: com.apple.NVDAResman(6.3.6)@0x96e000

                dependency: com.apple.iokit.IONDRVSupport(2.2)@0x961000

                dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x928000

                dependency: com.apple.iokit.IOGraphicsFamily(2.2)@0x93f000

             com.apple.nvidia.nv50hal(6.3.6)@0x160c000->0x1a20fff

                dependency: com.apple.NVDAResman(6.3.6)@0x96e000

             com.apple.NVDAResman(6.3.6)@0x96e000->0xc5bfff

                dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x928000

                dependency: com.apple.iokit.IONDRVSupport(2.2)@0x961000

                dependency: com.apple.iokit.IOGraphicsFamily(2.2)@0x93f000

     

     

    BSD process name corresponding to current thread: Photo Booth

     

     

    Mac OS version:

    10K549

     

     

    Kernel version:

    Darwin Kernel Version 10.8.0: Tue Jun  7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386

    System model name: MacBookPro6,2 (Mac-F22586C8)

     

     

    System uptime in nanoseconds: 64666239796830

    unloaded kexts:

    com.apple.driver.AppleUSBUHCI          4.2.0 (addr 0x14c2000, size 0x65536) - last unloaded 325726652941

    loaded kexts:

    com.wdc.driver.USBHP          1.0.5 - last loaded 24970946448936

    com.google.filesystems.fusefs          2.0.3

    com.wdc.driver.1394HP          1.0.7

    com.apple.driver.AppleBluetoothMultitouch          54.3

    com.apple.driver.AppleHWSensor          1.9.3d0

    com.apple.driver.AppleMikeyHIDDriver          1.2.0

    com.apple.driver.AppleHDA          2.0.5f14

    com.apple.driver.AppleMikeyDriver          2.0.5f14

    com.apple.driver.AGPM          100.12.31

    com.apple.driver.AudioAUUC          1.57

    com.apple.driver.SMCMotionSensor          3.0.1d2

    com.apple.filesystems.autofs          2.1.0

    com.apple.driver.AppleUSBDisplays          289

    com.apple.driver.ACPI_SMC_PlatformPlugin          4.7.0a1

    com.apple.driver.AppleUpstreamUserClient          3.5.7

    com.apple.driver.AppleMCCSControl          1.0.20

    com.apple.Dont_Steal_Mac_OS_X          7.0.0

    com.apple.driver.AudioIPCDriver          1.1.6

    com.apple.driver.AppleLPC          1.5.1

    com.apple.GeForce          6.3.6

    com.apple.driver.AppleGraphicsControl          2.10.6

    com.apple.kext.AppleSMCLMU          1.5.2d10

    com.apple.driver.AppleIntelHDGraphics          6.3.6

    com.apple.driver.AppleIntelHDGraphicsFB          6.3.6

    com.apple.driver.AppleUSBTCButtons          201.6

    com.apple.driver.AppleUSBCardReader          2.6.1

    com.apple.driver.AppleIRController          303.8

    com.apple.driver.AppleUSBTCKeyboard          201.6

    com.apple.BootCache          31.1

    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1

    com.apple.iokit.SCSITaskUserClient          2.6.8

    com.apple.iokit.IOAHCIBlockStorage          1.6.4

    com.apple.driver.AppleUSBHub          4.2.4

    com.apple.driver.AppleFWOHCI          4.7.3

    com.apple.driver.AppleSmartBatteryManager          160.0.0

    com.apple.iokit.AppleBCM5701Ethernet          3.0.5b8

    com.apple.driver.AppleEFINVRAM          1.4.0

    com.apple.driver.AppleAHCIPort          2.1.7

    com.apple.driver.AirPortBrcm43224          428.42.4

    com.apple.driver.AppleUSBEHCI          4.2.4

    com.apple.driver.AppleACPIButtons          1.3.6

    com.apple.driver.AppleRTC          1.3.1

    com.apple.driver.AppleHPET          1.5

    com.apple.driver.AppleSMBIOS          1.7

    com.apple.driver.AppleACPIEC          1.3.6

    com.apple.driver.AppleAPIC          1.4

    com.apple.driver.AppleIntelCPUPowerManagementClient          142.6.0

    com.apple.security.sandbox          1

    com.apple.security.quarantine          0

    com.apple.nke.applicationfirewall          2.1.12

    com.apple.driver.AppleIntelCPUPowerManagement          142.6.0

    com.apple.driver.AppleBluetoothHIDKeyboard          141.5

    com.apple.driver.AppleHIDKeyboard          141.5

    com.apple.driver.IOBluetoothHIDDriver          2.4.5f3

    com.apple.driver.AppleMultitouchDriver          207.11

    com.apple.driver.DspFuncLib          2.0.5f14

    com.apple.driver.AppleProfileReadCounterAction          17

    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.driver.AppleSMBusController          1.0.10d0

    com.apple.iokit.IOFireWireIP          2.0.3

    com.apple.driver.AppleUSBAudio          2.7.6f6

    com.apple.driver.IOPlatformPluginFamily          4.7.0a1

    com.apple.iokit.IOSurface          74.2

    com.apple.iokit.IOBluetoothSerialManager          2.4.5f3

    com.apple.iokit.IOSerialFamily          10.0.3

    com.apple.iokit.IOAudioFamily          1.8.3fc2

    com.apple.kext.OSvKernDSPLib          1.3

    com.apple.driver.AppleHDAController          2.0.5f14

    com.apple.iokit.IOHDAFamily          2.0.5f14

    com.apple.driver.AppleSMBusPCI          1.0.10d0

    com.apple.iokit.AppleProfileFamily          41

    com.apple.driver.AppleBacklightExpert          1.0.1

    com.apple.driver.AppleSMC          3.1.0d5

    com.apple.nvidia.nv50hal          6.3.6

    com.apple.NVDAResman          6.3.6

    com.apple.iokit.IONDRVSupport          2.2

    com.apple.iokit.IOGraphicsFamily          2.2

    com.apple.driver.BroadcomUSBBluetoothHCIController          2.4.5f3

    com.apple.driver.AppleUSBBluetoothHCIController          2.4.5f3

    com.apple.iokit.IOBluetoothFamily          2.4.5f3

    com.apple.iokit.IOSCSIBlockCommandsDevice          2.6.8

    com.apple.iokit.IOUSBMassStorageClass          2.6.7

    com.apple.driver.AppleUSBMultitouch          207.7

    com.apple.iokit.IOUSBHIDDriver          4.2.0

    com.apple.iokit.IOFireWireSerialBusProtocolTransport          2.1.0

    com.apple.iokit.IOFireWireSBP2          4.0.6

    com.apple.driver.AppleUSBMergeNub          4.2.4

    com.apple.driver.AppleUSBComposite          3.9.0

    com.apple.iokit.IOSCSIMultimediaCommandsDevice          2.6.8

    com.apple.iokit.IOBDStorageFamily          1.6

    com.apple.iokit.IODVDStorageFamily          1.6

    com.apple.iokit.IOCDStorageFamily          1.6.1

    com.apple.driver.XsanFilter          402.1

    com.apple.iokit.IOAHCISerialATAPI          1.2.6

    com.apple.iokit.IOSCSIArchitectureModelFamily          2.6.8

    com.apple.iokit.IOFireWireFamily          4.2.6

    com.apple.iokit.IOUSBUserClient          4.2.4

    com.apple.iokit.IOAHCIFamily          2.0.6

    com.apple.iokit.IO80211Family          320.1

    com.apple.iokit.IONetworkingFamily          1.10

    com.apple.iokit.IOUSBFamily          4.2.4

    com.apple.driver.AppleEFIRuntime          1.4.0

    com.apple.iokit.IOHIDFamily          1.6.6

    com.apple.iokit.IOSMBusFamily          1.1

    com.apple.kext.AppleMatch          1.0.0d1

    com.apple.security.TMSafetyNet          6

    com.apple.driver.DiskImages          289.1

    com.apple.iokit.IOStorageFamily          1.6.3

    com.apple.driver.AppleACPIPlatform          1.3.6

    com.apple.iokit.IOPCIFamily          2.6.5

    com.apple.iokit.IOACPIFamily          1.3.0

    Model: MacBookPro6,2, BootROM MBP61.0057.B0C, 2 processors, Intel Core i7, 2.66 GHz, 8 GB, SMC 1.58f15

    Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 512 MB

    Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB

    Memory Module: global_name

    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.10.131.42.4)

    Bluetooth: Version 2.4.5f3, 2 service, 19 devices, 1 incoming serial ports

    Network Service: AirPort, AirPort, en1

    Serial ATA Device: Hitachi HTS545050B9SA02, 465.76 GB

    Serial ATA Device: MATSHITADVD-R   UJ-898

    USB Device: Hub, 0x0424  (SMSC), 0x2514, 0xfa100000 / 2

    USB Device: BRCM2070 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0xfa110000 / 5

    USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x8218, 0xfa113000 / 8

    USB Device: Apple Internal Keyboard / Trackpad, 0x05ac  (Apple Inc.), 0x0236, 0xfa120000 / 4

    USB Device: Internal Memory Card Reader, 0x05ac  (Apple Inc.), 0x8403, 0xfa130000 / 3

    USB Device: Hub, 0x0424  (SMSC), 0x2514, 0xfd100000 / 2

    USB Device: Hub, 0x05ac  (Apple Inc.), 0x9136, 0xfd130000 / 5

    USB Device: Hub, 0x05ac  (Apple Inc.), 0x9137, 0xfd134000 / 6

    USB Device: Display iSight, 0x05ac  (Apple Inc.), 0x8508, 0xfd134200 / 9

    USB Device: Apple LED Cinema Display, 0x05ac  (Apple Inc.), 0x9236, 0xfd134300 / 8

    USB Device: Display Audio, 0x05ac  (Apple Inc.), 0x2912, 0xfd134100 / 7

    USB Device: Built-in iSight, 0x05ac  (Apple Inc.), 0x8507, 0xfd110000 / 4

    USB Device: IR Receiver, 0x05ac  (Apple Inc.), 0x8242, 0xfd120000 / 3

    FireWire Device: My Book, WD, Up to 800 Mb/sec

  • by aexis,

    aexis aexis Sep 12, 2011 4:55 PM in response to Tess888
    Level 1 (0 points)
    Sep 12, 2011 4:55 PM in response to Tess888

    Yes it seems that the replacement logic boards are in the same pool / batch as the original defective logic boards from mid 2010 as the new macbook pros do not use this logic board or graphics chip at all.

     

    So some of us have to wait and get a defective logic board replaced with another defective logic board, until we get a "good" one from the batch. Pretty frustrating!

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