Q: WindowServer and Kernel Task crashing Mac

It's really hard to work with this computer restarting almost every hour.

I think I already tried almost everything, now I'm considering to replace the logic board.

This is the last Panic Report...

Anonymous UUID:       E1CA817F-1949-54AD-1A48-7C7474080CC2

Thu Dec 18 09:40:31 2014

*** Panic Report ***

panic(cpu 2 caller 0xffffff7f9da32f63): "GPU Panic: [<None>] 5 3 7f 0 0 0 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff80c289c000 0x0a5480a2, D0, P3/4\n"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-3.7.21/src/Apple MuxControl/kext/GPUPanic.cpp:127

Backtrace (CPU 2), Frame : Return Address

0xffffff80b08031f0 : 0xffffff801ad3a811

0xffffff80b0803270 : 0xffffff7f9da32f63

0xffffff80b0803350 : 0xffffff7f9bb80b9f

0xffffff80b0803410 : 0xffffff7f9bc4a18e

0xffffff80b0803450 : 0xffffff7f9bc4a1fe

0xffffff80b08034c0 : 0xffffff7f9bec9056

0xffffff80b08035f0 : 0xffffff7f9bc6d82d

0xffffff80b0803610 : 0xffffff7f9bb875f1

0xffffff80b08036c0 : 0xffffff7f9bb850fc

0xffffff80b08038c0 : 0xffffff7f9bb87225

0xffffff80b08039b0 : 0xffffff7f9d03f925

0xffffff80b0803a10 : 0xffffff7f9d03c5ef

0xffffff80b0803a90 : 0xffffff7f9d0267fb

0xffffff80b0803ad0 : 0xffffff7f9d01d7dd

0xffffff80b0803b30 : 0xffffff801b301156

0xffffff80b0803b60 : 0xffffff801b30283b

0xffffff80b0803bc0 : 0xffffff801b300003

0xffffff80b0803d00 : 0xffffff801adea517

0xffffff80b0803e10 : 0xffffff801ad3e91c

0xffffff80b0803e40 : 0xffffff801ad235a3

0xffffff80b0803e90 : 0xffffff801ad33e8d

0xffffff80b0803f10 : 0xffffff801ae0a142

0xffffff80b0803fb0 : 0xffffff801ae3ac66

      Kernel Extensions in backtrace:

         com.apple.driver.AppleMuxControl(3.7.21)[32B7E2DE-1F9D-3555-B687-7A76A62B81D2]@ 0xffffff7f9da24000->0xffffff7f9da37fff

            dependency: com.apple.driver.AppleGraphicsControl(3.7.21)[62689710-EEA7-307A-AC83-B8F25DA88 A6A]@0xffffff7f9da1c000

            dependency: com.apple.iokit.IOACPIFamily(1.4)[70E2B65E-A91A-3522-A1A0-79FD63EABB4C]@0xfffff f7f9b7a9000

            dependency: com.apple.iokit.IOPCIFamily(2.9)[766FC23F-452C-3B74-951C-598BB17BCF06]@0xffffff 7f9b524000

            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[6D99A3BE-D531-3780-880B-13F2FC894A4A]@0 xffffff7f9bad9000

            dependency: com.apple.driver.AppleBacklightExpert(1.1.0)[0183904C-6A16-32C4-9405-EEFD7F820B 02]@0xffffff7f9da1f000

         com.apple.nvidia.classic.NVDAResmanTesla(10.0)[796AE430-39FB-3255-8161-D52AFA28 EE2B]@0xffffff7f9bb30000->0xffffff7f9bd99fff

            dependency: com.apple.iokit.IOPCIFamily(2.9)[766FC23F-452C-3B74-951C-598BB17BCF06]@0xffffff 7f9b524000

            dependency: com.apple.iokit.IONDRVSupport(2.4.1)[F4738C55-B507-3627-A9CA-3D29A5230A03]@0xff ffff7f9bb20000

            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[6D99A3BE-D531-3780-880B-13F2FC894A4A]@0 xffffff7f9bad9000

         com.apple.nvidia.classic.NVDANV50HalTesla(10.0)[7FE40648-F15F-3E18-91E2-FDDDF4C DA355]@0xffffff7f9bda4000->0xffffff7f9c04dfff

            dependency: com.apple.nvidia.classic.NVDAResmanTesla(10.0.0)[796AE430-39FB-3255-8161-D52AFA 28EE2B]@0xffffff7f9bb30000

            dependency: com.apple.iokit.IOPCIFamily(2.9)[766FC23F-452C-3B74-951C-598BB17BCF06]@0xffffff 7f9b524000

         com.apple.GeForceTesla(10.0)[67CD214F-0F26-3BEF-BAD0-CF0F83C2616D]@0xffffff7f9c fd9000->0xffffff7f9d0a6fff

            dependency: com.apple.iokit.IOPCIFamily(2.9)[766FC23F-452C-3B74-951C-598BB17BCF06]@0xffffff 7f9b524000

            dependency: com.apple.iokit.IONDRVSupport(2.4.1)[F4738C55-B507-3627-A9CA-3D29A5230A03]@0xff ffff7f9bb20000

            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[6D99A3BE-D531-3780-880B-13F2FC894A4A]@0 xffffff7f9bad9000

            dependency: com.apple.nvidia.classic.NVDAResmanTesla(10.0.0)[796AE430-39FB-3255-8161-D52AFA 28EE2B]@0xffffff7f9bb30000

BSD process name corresponding to current thread: WindowServer

Mac OS version:

14B25

Kernel version:

Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64

Kernel UUID: 89E10306-BC78-3A3B-955C-7C4922577E61

Kernel slide:     0x000000001aa00000

Kernel text base: 0xffffff801ac00000

__HIB  text base: 0xffffff801ab00000

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

System uptime in nanoseconds: 4747814344557

last loaded kext at 1242374697311: com.seagate.driver.PowSecDriverCore 5.2.6 (addr 0xffffff7f9dc13000, size 233472)

last unloaded kext at 1344991171333: com.apple.iokit.IOFireWireSBP2 4.2.5 (addr 0xffffff7f9dbf8000, size 110592)

loaded kexts:

com.squirrels.driver.AirParrotSpeakers 1.8

com.rim.driver.BlackBerryUSBDriverInt 0.0.64

com.apple.filesystems.afpfs 11.0

com.apple.nke.asp-tcp 8.0.0

com.apple.filesystems.smbfs 3.0.0

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AGPM 100.14.37

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AppleHDA 267.0

com.apple.driver.AppleIntelHDGraphics 10.0.0

com.apple.driver.AppleIntelHDGraphicsFB 10.0.0

com.apple.GeForceTesla 10.0.0

com.apple.driver.AppleUpstreamUserClient 3.6.1

com.apple.driver.AppleMCCSControl 1.2.10

com.apple.driver.AppleSMCLMU 2.0.4d1

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.1f2

com.apple.driver.AppleMikeyDriver 267.0

com.apple.driver.AppleLPC 1.7.3

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AudioAUUC 1.70

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.iokit.IOBluetoothSerialManager 4.3.1f2

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleHWAccess 1

com.apple.driver.AppleHV 1

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.driver.AppleMuxControl 3.7.21

com.apple.driver.SMCMotionSensor 3.0.4d1

com.apple.driver.AppleUSBTCButtons 240.2

com.apple.driver.AppleUSBCardReader 3.5.0

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 35

com.apple.driver.AppleUSBTCKeyboard 240.2

com.apple.driver.AppleIRController 327.5

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.6.5

com.apple.driver.AirPort.Brcm4331 800.20.24

com.apple.driver.AppleUSBHub 705.4.1

com.apple.driver.AppleFWOHCI 5.5.2

com.apple.driver.AppleAHCIPort 3.0.7

com.apple.iokit.AppleBCM5701Ethernet 10.1.2b3

com.apple.driver.AppleUSBEHCI 705.4.14

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleACPIButtons 3.1

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 3.1

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0

com.apple.nke.applicationfirewall 161

com.apple.security.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleIntelCPUPowerManagement 218.0.0

com.apple.security.SecureRemotePassword 1.0

com.apple.kext.triggers 1.0

com.apple.AppleGraphicsDeviceControl 3.7.21

com.apple.driver.DspFuncLib 267.0

com.apple.kext.OSvKernDSPLib 1.15

com.apple.iokit.IOFireWireIP 2.2.6

com.apple.driver.AppleHDAController 267.0

com.apple.iokit.IOHDAFamily 267.0

com.apple.nvidia.classic.NVDANV50HalTesla 10.0.0

com.apple.nvidia.classic.NVDAResmanTesla 10.0.0

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.1f2

com.apple.driver.AppleSMBusController 1.0.13d1

com.apple.driver.AppleSMBusPCI 1.0.12d1

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.iokit.IOSurface 97

com.apple.iokit.IOSerialFamily 11

com.apple.iokit.IOBluetoothFamily 4.3.1f2

com.apple.iokit.IOAudioFamily 200.6

com.apple.vecLib.kext 1.2.0

com.apple.driver.IOPlatformPluginFamily 5.8.0d49

com.apple.iokit.IOUSBUserClient 705.4.0

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.driver.AppleGraphicsControl 3.7.21

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.driver.AppleSMC 3.1.9

com.apple.driver.AppleUSBMultitouch 245.2

com.apple.iokit.IOUSBHIDDriver 705.4.0

com.apple.driver.AppleUSBMergeNub 705.4.0

com.apple.iokit.IOFireWireFamily 4.5.6

com.apple.iokit.IOAHCIFamily 2.7.0

com.apple.iokit.IO80211Family 700.52

com.apple.iokit.IOEthernetAVBController 1.0.3b3

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.iokit.IONetworkingFamily 3.2

com.apple.driver.AppleEFINVRAM 2.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOHIDFamily 2.0.0

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 389.1

com.apple.iokit.IOReportFamily 31

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.iokit.IOUSBMassStorageClass 3.7.0

com.apple.driver.AppleUSBComposite 705.4.9

com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.0

com.apple.iokit.IOStorageFamily 2.0

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.0

com.apple.iokit.IOUSBFamily 705.4.14

com.apple.driver.AppleACPIPlatform 3.1

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

Model: MacBookPro6,2, BootROM MBP61.0057.B0F, 2 processors, Intel Core i7, 2.66 GHz, 4 GB, SMC 1.58f17

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

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

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533654465238432D47372020

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533654465238432D47372020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.98.100.24)

Bluetooth: Version 4.3.1f2 15015, 3 services, 19 devices, 1 incoming serial ports

Network Service: AirPort, AirPort, en1

Serial ATA Device: KINGSTON SV300S37A240G, 240,06 GB

Serial ATA Device: ST9500325ASG, 500,11 GB

USB Device: Hub

USB Device: Apple Internal Keyboard / Trackpad

USB Device: BRCM2070 Hub

USB Device: Bluetooth USB Host Controller

USB Device: Internal Memory Card Reader

USB Device: Hub

USB Device: IR Receiver

USB Device: Built-in iSight

Thunderbolt Bus: