Random computer freeze/BDOS crash. Kernel-Power 4. help plz

Hello everyone,
About 2 months back i had a new pc build. Since then, either 2 things would happen. My computer screen will complete freeze, with a buzzing sound and i would have to manually restart or i would get a BDOS with a buzzing sound and the computer auto restarts. These crashes are completely random, sometimes it would happen couple times a day, sometimes i can go a week without one. i also notice about almost all of these happens when im gaming. and everytime i look at the event log, its always the same Kernel-Power 41. Any help would be greatly appreciated, thxs

This is the computer spec
OS: Windows 8
PSU: EVGA SuperNOVA 750
Graphics Card: ASUS GTX780-DC2OC-3GD5
CPU: Intel Core i7-4790K 4.0GHz
Mother Board: ASUS MAXIMUS VII HERO
RAM: G.SKILL Trident X Series 8GB (2 x 4GB) DDR3 2400 (PC3 19200)
SSD: Kingston HyperX 3K 240GB

This is what i got using WinDbg
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

WHEA_UNCORRECTABLE_ERROR (124)
A fatal hardware error has occurred. Parameter 1 identifies the type of error
source that reported the error. Parameter 2 holds the address of the
WHEA_ERROR_RECORD structure that describes the error conditon.
Arguments:
Arg1: 0000000000000000, Machine Check Exception
Arg2: fffffa800b562028, Address of the WHEA_ERROR_RECORD structure.
Arg3: 00000000be000000, High order 32-bits of the MCi_STATUS value.
Arg4: 000000000100110a, Low order 32-bits of the MCi_STATUS value.

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


BUGCHECK_STR: 0x124_GenuineIntel

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: WIN8_DRIVER_FAULT

PROCESS_NAME: dota.exe

CURRENT_IRQL: f

ANALYSIS_VERSION: 6.3.9600.17029 (debuggers(dbg).140219-1702) amd64fre

STACK_TEXT:
fffff880`017c7968 fffff800`63d7b965 : 00000000`00000124 00000000`00000000 fffffa80`0b562028 00000000`be000000 : nt!KeBugCheckEx
fffff880`017c7970 fffff800`63765bb3 : 00000000`00000001 fffffa80`06a049c0 00000000`00000000 fffffa80`0b562028 : hal!HalBugCheckSystem+0xf9
fffff880`017c79b0 fffff800`63d7b703 : 00000000`00000728 00000000`00000005 fffff880`017c7b10 fffffa80`06a049c0 : nt!WheaReportHwError+0x253
fffff880`017c7a10 fffff800`63d7b020 : 00000000`00000010 fffffa80`06a049c0 fffff880`017c7bc8 fffffa80`06a049c0 : hal!HalpMcaReportError+0x53
fffff880`017c7b70 fffff800`63d7af1b : fffffa80`06768eb0 00000000`00000001 00000000`00000005 00000000`00000000 : hal!HalpMceHandlerCore+0xd4
fffff880`017c7bc0 fffff800`63d7ad78 : 00000000`00000008 00000000`00000001 00000000`00000000 00000000`00000000 : hal!HalpMceHandler+0xe3
fffff880`017c7c00 fffff800`63d7bf0f : fffffa80`06768eb0 fffff880`017c7e30 00000000`00000000 00000000`00000000 : hal!HalpMceHandlerWithRendezvous+0xd4
fffff880`017c7c30 fffff800`6365d87b : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : hal!HalHandleMcheck+0x40
fffff880`017c7c60 fffff800`6365d62e : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KxMcheckAbort+0x7b
fffff880`017c7da0 00000000`5213b7f0 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiMcheckAbort+0x16e
00000000`00f3df14 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x5213b7f0


STACK_COMMAND: kb

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: GenuineIntel

IMAGE_NAME: GenuineIntel

DEBUG_FLR_IMAGE_TIMESTAMP: 0

IMAGE_VERSION:

FAILURE_BUCKET_ID: 0x124_GenuineIntel_PROCESSOR_CACHE

BUCKET_ID: 0x124_GenuineIntel_PROCESSOR_CACHE

ANALYSIS_SOURCE: KM

FAILURE_ID_HASH_STRING: km:0x124_genuineintel_processor_cache

FAILURE_ID_HASH: {4c8f3f5e-1af5-ed8b-df14-d42663b1dfa7}