Hi all,
For the past 2-3 months I've been unsuccessfully dealing with a problem with my MacBook Pro (Retina, 13-inch, Late 2013, Mavericks). The fan runs very loudly, "kernel_task" consistently uses ~300% of the CPU, and the computer runs very slowly as a result. After erasing the hard drive and reinstalling OS X, the problem persisted, leading me to believe it was a hardware problem, so I brought it into Apple for repairs. Sure enough, their tests returned the following sensors as failed:
-Ambient air sensor
-CPU Proximity
-DDR3 Proximity
-Right Fin Stick Proximity
-Light Sensor
They replaced the main logic board, top case w battery, and I/L board, and when I got it back, the fan and "kernel_task" CPU usage appeared to be fixed, but the moment I restored my data, the fan became loud again, and the boot up loading bar hung at ~50%. I couldn't even boot up until I erased the drive again, but after doing so and reinstalling the OS X, the fan and "kernel_task" were still problematic, and restarting with "D" pressed returned the following error codes:
-PFM006
-NDC001
-PPN001
I'm completely baffled at this point. I'm not even sure if this is a hardware or software problem anymore. If I could figure out how to fix the problem, I would proceed by restoring only non-system affecting data from my backup and reinstalling applications I still need, but now the problem persists even on a fresh reinstall. I don't want to send the computer away again for a problem that cold be caused by software.
My instinct now is that some kernel extension is causing the problem (does a OS reinstall reset these?), so I looked through the console logs and found what might be a clue:
"11/18/15 7:04:59.000 AM kernel[0]: SMC::smcReadKeyAction ERROR: smcReadData8 failed for key LsNM (kSMCKeyNotFound)
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcReadKeyAction ERROR LsNM kSMCKeyNotFound(0x84) fKeyHashTable=0x0
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcGetLightshowVers ERROR: smcReadKey LsNM failed (kSMCKeyNotFound)
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcPublishLightshowVersion ERROR: smcGetLightshowVers failed (kSMCKeyNotFound)
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcInitHelper ERROR: smcPublishLightshowVersion failed (kSMCKeyNotFound)
11/18/15 7:04:59.000 AM kernel[0]: Previous Shutdown Cause: 3
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcIH WARNING: unexpected interrupt: 0x55
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcIH WARNING: unexpected interrupt: 0x54"
However, I'm unsure of how to proceed. Any advice or requests for further info would be vastly appreciated.
Sam
PS: already tried resetting PRAM and SMC.
MacBook Pro (Retina, 13-inch, Late 2013), OS X Mavericks (10.9.5)
For the past 2-3 months I've been unsuccessfully dealing with a problem with my MacBook Pro (Retina, 13-inch, Late 2013, Mavericks). The fan runs very loudly, "kernel_task" consistently uses ~300% of the CPU, and the computer runs very slowly as a result. After erasing the hard drive and reinstalling OS X, the problem persisted, leading me to believe it was a hardware problem, so I brought it into Apple for repairs. Sure enough, their tests returned the following sensors as failed:
-Ambient air sensor
-CPU Proximity
-DDR3 Proximity
-Right Fin Stick Proximity
-Light Sensor
They replaced the main logic board, top case w battery, and I/L board, and when I got it back, the fan and "kernel_task" CPU usage appeared to be fixed, but the moment I restored my data, the fan became loud again, and the boot up loading bar hung at ~50%. I couldn't even boot up until I erased the drive again, but after doing so and reinstalling the OS X, the fan and "kernel_task" were still problematic, and restarting with "D" pressed returned the following error codes:
-PFM006
-NDC001
-PPN001
I'm completely baffled at this point. I'm not even sure if this is a hardware or software problem anymore. If I could figure out how to fix the problem, I would proceed by restoring only non-system affecting data from my backup and reinstalling applications I still need, but now the problem persists even on a fresh reinstall. I don't want to send the computer away again for a problem that cold be caused by software.
My instinct now is that some kernel extension is causing the problem (does a OS reinstall reset these?), so I looked through the console logs and found what might be a clue:
"11/18/15 7:04:59.000 AM kernel[0]: SMC::smcReadKeyAction ERROR: smcReadData8 failed for key LsNM (kSMCKeyNotFound)
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcReadKeyAction ERROR LsNM kSMCKeyNotFound(0x84) fKeyHashTable=0x0
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcGetLightshowVers ERROR: smcReadKey LsNM failed (kSMCKeyNotFound)
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcPublishLightshowVersion ERROR: smcGetLightshowVers failed (kSMCKeyNotFound)
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcInitHelper ERROR: smcPublishLightshowVersion failed (kSMCKeyNotFound)
11/18/15 7:04:59.000 AM kernel[0]: Previous Shutdown Cause: 3
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcIH WARNING: unexpected interrupt: 0x55
11/18/15 7:04:59.000 AM kernel[0]: SMC::smcIH WARNING: unexpected interrupt: 0x54"
However, I'm unsure of how to proceed. Any advice or requests for further info would be vastly appreciated.
Sam
PS: already tried resetting PRAM and SMC.
MacBook Pro (Retina, 13-inch, Late 2013), OS X Mavericks (10.9.5)