blank screen/loud buzzing sound

Hi Everyone,

So just wanted to get a feel from the community as this is my second problem i am having with my alienware m17x r4. 

1st problem was while playing games my screen would go blank and a loud buzzing sound would occur, they fixed it by replacing my graphics card. Which did stop the problem for about 2 years.

The problem now that has started to happen is, the screen will go blank but everything is still on, the pc will restart and windows gives me this error message:

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Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 3081

Additional information about the problem:
BCCode: 116
BCP1: FFFFFA801A456010
BCP2: FFFFF8800FCEE6FC
BCP3: FFFFFFFFC000009A
BCP4: 0000000000000004
OS Version: 6_1_7601
Service Pack: 1_0
Product: 768_1

Files that help describe the problem:
C:\Windows\Minidump\041015-23244-01.dmp
C:\Users\Top Line Gamers\AppData\Local\Temp\WER-25958-0.sysdata.xml

Read our privacy statement online:
go.microsoft.com/fwlink;clcid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:
C:\Windows\system32\en-US\erofflps.txt

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( i did preform the system check and all areas where ticked green)

So after a day now, the screen is starting to go blank again but this time with the loud buzzing sound, when i restart the pc all is fine until i start playing games then it happens again. it varies from just a blank screen with a automatic restart or just a blank screen with the buzzing sound. 

i called tech support and they think its my graphics card. Can anyone else shed some light with there previous experience to this and what the fix would be? i am out of warranty but willing to pay as long as the problem is pin pointed and fixed.