Mac Pro 2015 Crashes - AMPCPowerManagement

My Mac Pro late 2013 model started crashing about 1 month ago on a daily basis whenever I used Adobe Creative Cloud, Safari, update OS X, or MS Office, etc. I took my computer in for services at Apple Store even though my warranty is expired. 1st time, they said no hardware issue; just format and re-install OS X. I followed their instructions and computer still crashed so I took it back for another services. Apple store took my computer and re-partition the hard drive before they called me to pick it up. Next day when I tried to update OS X, it crashed again. To be certain the problem is not internal hard drive or OS X, I installed a new copy of OS X 10.11.6 on external Hard Drive and booted from it and then ejected the internal hard drive to test the computer. Guess what... it crashed. From there, I know for sure it is not OS X or hard drive. I took my computer back to Apple Store and told them what I did. They reviewed all the internal write-up and my reports and told me it is the graphic cards. Okay... I know there is this unofficial recall of Mac Pro graphic cards so it is free to replaced these. However, they also replaced my power supply because computer crashed after they replaced both graphic cards. Power supply is not part of any recall or warranty so I have to pay for it. I thought it is the end of my story.... Guess what, my computer crashed next day after I took it back from Apple Store after they replaced graphic cards & power supply. It crashed when I updated OS X 10.11.6. I called Apple tech support and they told me I need to bring my computer in for another examination. I asked what else can be the problem at this stage and answer i got is logic board. Does anyone know what else might be the cause of my computer crashes? CPU? Ram?

Here is my panic report.

*** Panic Report ***

panic(cpu 0 caller 0xffffff7f924499ce): "ACPI \"PWRD\" with power reset failure: <rdar://problem/15746463>"@/Library/Caches/com.apple.xbs/Sources/AppleGraphicsC ontrol/AppleGraphicsControl-3.12.8/src/AppleMGPUPowerControl/kext/AMPCPowerManag ement.cpp:511

Backtrace (CPU 0), Frame : Return Address

0xffffff93cfb43db0 : 0xffffff800fcdab52

0xffffff93cfb43e30 : 0xffffff7f924499ce

0xffffff93cfb43e80 : 0xffffff7f92448ed2

0xffffff93cfb43ec0 : 0xffffff7f924476b9

0xffffff93cfb43f10 : 0xffffff7f92447c0f

0xffffff93cfb43f40 : 0xffffff80102b3111

0xffffff93cfb43f80 : 0xffffff80102b330c

0xffffff93cfb43fb0 : 0xffffff800fdc9117

Kernel Extensions in backtrace:

com.apple.driver.AppleMGPUPowerControl(3.12.8)[CB4BA03A-3AA5-34F1-B951-4A2F8352 8E48]@0xffffff7f92441000->0xffffff7f9244dfff

dependency: com.apple.driver.AppleBacklightExpert(1.1.0)[C49819CE-729A-36B2-9AC1-744A43DC23 6F]@0xffffff7f92439000

dependency: com.apple.iokit.IOPCIFamily(2.9)[5447B943-A94D-3BD4-A60F-98B24D19CE93]@0xffffff 7f9052c000

dependency: com.apple.driver.AppleGraphicsControl(3.12.8)[C57F5F56-2229-365F-9765-F24AA4687 584]@0xffffff7f9243e000

dependency: com.apple.iokit.IOACPIFamily(1.4)[5D7574C3-8E90-3873-BAEB-D979FC215A7D]@0xfffff f7f90bdc000

dependency: com.apple.iokit.IONDRVSupport(2.4.1)[4EB2843C-C821-3AD0-B333-575FD6ED6FB1]@0xff ffff7f9106a000

dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[A360453D-2050-3C49-A549-AC0DD5E87917]@0 xffffff7f91023000

BSD process name corresponding to current thread: kernel_task

Mac OS version:

15G1004

Kernel version:

Darwin Kernel Version 15.6.0: Mon Aug 29 20:21:34 PDT 2016; root:xnu-3248.60.11~1/RELEASE_X86_64

Kernel UUID: E349749B-3303-3DDF-959C-B5885A0E1F6E

Kernel slide: 0x000000000fa00000

Kernel text base: 0xffffff800fc00000

__HIB text base: 0xffffff800fb00000

System model name: MacPro6,1 (Mac-F60DEB81FF30ACF6)

System uptime in nanoseconds: 2364092217318

last loaded kext at 242776569256: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f935d9000, size 69632)

last unloaded kext at 302998049387: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f935d9000, size 61440)

loaded kexts:

com.apple.driver.ApplePlatformEnabler 2.6.0d0

com.apple.driver.AGPM 110.22.0

com.apple.driver.X86PlatformShim 1.0.0

com.apple.filesystems.autofs 3.0

com.apple.driver.AudioAUUC 1.70

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleHDA 274.12

com.apple.driver.AppleGraphicsDevicePolicy 3.12.7

com.apple.driver.AppleUpstreamUserClient 3.6.1

com.apple.driver.AppleMCCSControl 1.2.13

com.apple.driver.pmtelemetry 1

com.apple.kext.AMDFramebuffer 1.4.2

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.iokit.IOBluetoothSerialManager 4.4.6f1

com.apple.AMDRadeonX4000 1.4.2

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.6f1

com.apple.driver.AppleHV 1

com.apple.driver.AppleLPC 3.1

com.apple.driver.AppleMGPUPowerControl 3.12.8

com.apple.driver.AppleThunderboltIP 3.0.8

com.apple.kext.AMD7000Controller 1.4.2

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.AppleIntelMCEReporter 107

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.BootCache 38

com.apple.iokit.IOAHCIBlockStorage 2.8.5

com.apple.iokit.AppleBCM5701Ethernet 10.2.0

com.apple.driver.AirPort.Brcm4360 1040.1.1a6

com.apple.driver.usb.AppleUSBEHCIPCI 1.0.1

com.apple.driver.AppleAHCIPort 3.1.8

com.apple.driver.AppleACPIButtons 4.0

com.apple.driver.AppleACPIEC 4.0

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0

com.apple.nke.applicationfirewall 163

com.apple.security.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleIntelCPUPowerManagement 218.0.0

com.apple.kext.triggers 1.0

com.apple.driver.DspFuncLib 274.12

com.apple.kext.OSvKernDSPLib 525

com.apple.driver.AppleSMBusController 1.0.14d1

com.apple.iokit.IOSurface 108.2.3

com.apple.iokit.IOSerialFamily 11

com.apple.iokit.IOAcceleratorFamily2 205.11

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.6f1

com.apple.iokit.IOBluetoothFamily 4.4.6f1

com.apple.driver.CoreCaptureResponder 1

com.apple.driver.AppleHDAController 274.12

com.apple.iokit.IOHDAFamily 274.12

com.apple.iokit.IOAudioFamily 204.4

com.apple.vecLib.kext 1.2.0

com.apple.driver.AppleGraphicsControl 3.12.8

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.AppleSMC 3.1.9

com.apple.driver.IOPlatformPluginFamily 6.0.0d7

com.apple.kext.AMDSupport 1.4.2

com.apple.AppleGraphicsDeviceControl 3.12.8

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7

com.apple.driver.AppleUSBHIDMouse 185.3

com.apple.iokit.IOUSBHIDDriver 900.4.1

com.apple.driver.AppleHIDMouse 185.3

com.apple.driver.AppleHIDKeyboard 181

com.apple.driver.usb.IOUSBHostHIDDevice 1.0.1

com.apple.driver.usb.cdc 5.0.0

com.apple.driver.usb.networking 5.0.0

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1

com.apple.driver.usb.AppleUSBHub 1.0.1

com.apple.driver.AppleThunderboltDPInAdapter 4.1.3

com.apple.driver.AppleThunderboltDPAdapterFamily 4.1.3

com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

com.apple.driver.AppleThunderboltNHI 4.0.4

com.apple.iokit.IOThunderboltFamily 6.0.2

com.apple.driver.usb.AppleUSBXHCIPCI 1.0.1

com.apple.driver.usb.AppleUSBXHCI 1.0.1

com.apple.iokit.IOEthernetAVBController 1.0.3b3

com.apple.iokit.IO80211Family 1110.26

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.iokit.IONetworkingFamily 3.2

com.apple.driver.corecapture 1.0.4

com.apple.driver.usb.AppleUSBEHCI 1.0.1

com.apple.iokit.IOAHCIFamily 2.8.1

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.iokit.IOUSBHostFamily 1.0.1

com.apple.driver.AppleUSBHostMergeProperties 1.0.1

com.apple.driver.AppleEFINVRAM 2.0

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.DiskImages 417.4

com.apple.iokit.IOStorageFamily 2.1

com.apple.iokit.IOReportFamily 31

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 4.0

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.Libm 1

com.apple.kec.pthread 1

com.apple.kec.corecrypto 1.0