Kernel panic imac 27 fin 2013

Bonjour,

J'ai fait l'acquisition d'un imac récemment, il a à peine 4 mois et c'est mon 1er mac, je suis novice en la matière.
Me voilà confronté à des redémarrages intempestifs et aléatoires de type kernel panic.
J'ai au début pensé à une saturation de la ram (ce qui apparemment arrive d'après ce que j'ai pu lire sur le net ?), je me sers de cette machine pour de la retouche photo en aillant des logiciels lourds qui tournent en même temps (type suite adobe + corel painter). Cependant il arrive à ma machine de redémarrer sans pour autant que je fasse tourner tous ces logiciels...
J'ai contacté apple qui m'a fait faire tout un tas de manipulations de type vider la pram (?) et autres débranchage de périph, redemarrages etc... et bien qu'au début il me semblait que ça fonctionnait voilà que ces kernel panic recommencent.
Je ne sais plus quoi faire et le rapport d'erreur est du chinois pour moi
Aidez moi s'il vous plait !
Voici le dernier rapport :


Tue Jul 28 08:43:06 2015

• • • Panic Report ***

panic(cpu 0 caller 0xffffff8007017cc2): Kernel trap at 0xffffff8002f3ec50, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0xffffff8002f3ec50, CR3: 0x000000000a1d4000, CR4: 0x00000000001627e0
RAX: 0x0000000005f2f736, RBX: 0xffffff80076e32d8, RCX: 0x0000000000000000, RDX: 0x0000000000000010
RSP: 0xffffff80e99cbe58, RBP: 0xffffff80e99cbf20, RSI: 0x0000000000000000, RDI: 0xffffff801cf96c50
R8: 0x0000000000000000, R9: 0x0000000005f2f736, R10: 0x000017ff4c3bb8ec, R11: 0x000017ff4c3b9ada
R12: 0xffffff801cf96c50, R13: 0xffffff801cf96e50, R14: 0xffffff8002f3ec50, R15: 0x0000000000000000
RFL: 0x0000000000010096, RIP: 0xffffff8002f3ec50, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0xffffff8002f3ec50, Error code: 0x0000000000000010, Fault CPU: 0x0

Backtrace (CPU 0), Frame : Return Address
0xffffff80e99cbb00 : 0xffffff8006f2bda1
0xffffff80e99cbb80 : 0xffffff8007017cc2
0xffffff80e99cbd40 : 0xffffff8007034b73
0xffffff80e99cbd60 : 0xffffff8002f3ec50
0xffffff80e99cbf20 : 0xffffff800700970b
0xffffff80e99cbf60 : 0xffffff800701f3cb
0xffffff80e99cbf80 : 0xffffff800701706e
0xffffff80e99cbfd0 : 0xffffff8007034d39
0xffffff8112d83f40 : 0xffffff8006f42e6b
0xffffff8112d83f90 : 0xffffff8006f433b0
0xffffff8112d83fb0 : 0xffffff80070125b7

BSD process name corresponding to current thread: kernel_task

Mac OS version:
14D136

Kernel version:
Darwin Kernel Version 14.3.0: Mon Mar 23 11:59:05 PDT 2015; root:xnu-2782.20.48~5/RELEASE_X86_64
Kernel UUID: 4B3A11F4-77AA-3D27-A22D-81A1BC5B504D
Kernel slide: 0x0000000006c00000
Kernel text base: 0xffffff8006e00000
__HIB text base: 0xffffff8006d00000
System model name: iMac14,2 (Mac-27ADBB7B4CEE8E61)

System uptime in nanoseconds: 26385286568495
last loaded kext at 23427384761559: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f89aab000, size 69632)
last unloaded kext at 24761623388720: com.apple.driver.AppleMultitouchDriver 263.9.1 (addr 0xffffff7f89a49000, size 147456)
loaded kexts:
com.apple.driver.AudioAUUC 1.70
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.ApplePlatformEnabler 2.2.0d4
com.apple.driver.AGPM 110.19.5
com.apple.driver.X86PlatformShim 1.0.0
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOBluetoothSerialManager 4.3.4f4
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleMikeyDriver 272.18
com.apple.driver.AppleHDA 272.18
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleHV 1
com.apple.driver.AppleSMCLMU 2.0.7d0
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.AppleThunderboltIP 2.0.2
com.apple.GeForce 10.0.2
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AppleLPC 1.7.3
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.4f4
com.apple.driver.AppleBacklight 170.7.4
com.apple.driver.AppleMCCSControl 1.2.11
com.apple.driver.AppleIntelHD5000Graphics 10.0.6
com.apple.driver.AppleIntelFramebufferAzul 10.0.6
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 36
com.apple.driver.AppleUSBHub 705.4.2
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.7.1
com.apple.driver.AppleSDXC 1.6.5
com.apple.driver.AppleUSBXHCI 710.4.11
com.apple.driver.AirPort.Brcm4360 930.37.3
com.apple.iokit.AppleBCM5701Ethernet 10.1.3
com.apple.driver.AppleAHCIPort 3.1.2
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.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleBluetoothHIDKeyboard 176.2
com.apple.driver.IOBluetoothHIDDriver 4.3.4f4
com.apple.driver.AppleHIDKeyboard 176.2
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 11
com.apple.driver.DspFuncLib 272.18
com.apple.kext.OSvKernDSPLib 1.15
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.driver.AppleThunderboltEDMSink 4.0.2
com.apple.nvidia.driver.NVDAGK100Hal 10.0.2
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.nvidia.driver.NVDAResman 10.0.2
com.apple.driver.IOPlatformPluginFamily 5.9.1d7
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.4f4
com.apple.iokit.IOBluetoothFamily 4.3.4f4
com.apple.driver.AppleHDAController 272.18
com.apple.iokit.IOHDAFamily 272.18
com.apple.iokit.IOAudioFamily 203.3
com.apple.vecLib.kext 1.2.0
com.apple.driver.AppleBacklightExpert 1.1.0
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.iokit.IOSurface 97.4
com.apple.AppleGraphicsDeviceControl 3.10.22
com.apple.iokit.IOAcceleratorFamily2 156.14
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.5
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.driver.AppleThunderboltDPInAdapter 4.0.6
com.apple.driver.AppleThunderboltDPOutAdapter 4.0.6
com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6
com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2
com.apple.driver.AppleThunderboltNHI 3.1.7
com.apple.iokit.IOThunderboltFamily 4.2.2
com.apple.iokit.IOUSBFamily 720.4.4
com.apple.iokit.IO80211Family 730.60
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOAHCIFamily 2.7.5
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 396
com.apple.iokit.IOStorageFamily 2.0
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 3.1
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
com.apple.kec.Libm 1
com.apple.kec.pthread 1
Model: iMac14,2, BootROM IM142.0118.B09, 4 processors, Intel Core i5, 3.2 GHz, 8 GB, SMC 2.15f7
Graphics: NVIDIA GeForce GT 755M, NVIDIA GeForce GT 755M, PCIe, 1024 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (7.15.166.24.3)
Bluetooth: Version 4.3.4f4 15601, 3 services, 27 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: APPLE HDD ST1000DM003, 1 TB
USB Device: FaceTime HD Camera (Built-in)
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: PTK-840
Thunderbolt Bus: iMac, Apple Inc., 23.10