Random restarts

Hi, my PC sometimes restarts (not so very often) while playing games. I've managed to get the minidump of my latest PC restart but I am not familiar with that. Maybe someone can tell me what is causing that restarts
Here it is:

Use !analyze -v to get detailed debugging information.

BugCheck 1000000A, {0, ff, 0, 806e2ea0}

Unable to load image AmdK8.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for AmdK8.sys
*** ERROR: Module load completed but symbols could not be loaded for AmdK8.sys


Probably caused by : hardware ( AmdK8+3552 )

Followup: MachineOwner
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0: kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

IRQL_NOT_LESS_OR_EQUAL (a)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high. This is usually
caused by drivers using improper addresses.
If a kernel debugger is available get the stack backtrace.
Arguments:
Arg1: 00000000, memory referenced
Arg2: 000000ff, IRQL
Arg3: 00000000, bitfield :
bit 0 : value 0 = read operation, 1 = write operation
bit 3 : value 0 = not an execute operation, 1 = execute operation (only on chips which support this level of status)
Arg4: 806e2ea0, address which referenced memory

Debugging Details:
------------------




READ_ADDRESS: 00000000

CURRENT_IRQL: ff

FAULTING_IP:
hal!HalpClockInterrupt+4c
806e2ea0 8b1d00000000 mov ebx,dword ptr ds:[0]

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: DRIVER_FAULT

BUGCHECK_STR: 0xA

PROCESS_NAME: Idle

MISALIGNED_IP:
hal!HalpClockInterrupt+4c
806e2ea0 8b1d00000000 mov ebx,dword ptr ds:[0]

UNALIGNED_STACK_POINTER: 805503c1

LAST_CONTROL_TRANSFER: from ba2ab552 to 806e2ea0

STACK_TEXT:
805503c0 ba2ab552 badb0d00 00000009 805503e0 hal!HalpClockInterrupt+0x4c
WARNING: Stack unwind information not available. Following frames may be wrong.
80550430 ffdffc70 80527910 ffdff000 8055b0a0 AmdK8+0x3552
80550450 80544d2c 00000000 0000000e 00000000 0xffdffc70
80550454 00000000 0000000e 00000000 00000000 nt!KiIdleLoop+0x10


STACK_COMMAND: kb

FOLLOWUP_IP:
AmdK8+3552
ba2ab552 ?? ???

SYMBOL_STACK_INDEX: 1

SYMBOL_NAME: AmdK8+3552

FOLLOWUP_NAME: MachineOwner

IMAGE_NAME: hardware

DEBUG_FLR_IMAGE_TIMESTAMP: 0

MODULE_NAME: hardware

FAILURE_BUCKET_ID: IP_MISALIGNED

BUCKET_ID: IP_MISALIGNED

Followup: MachineOwner