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Are you receiving Nv4_Disp.dll error?

 

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Try this steps: Handling "nvlddmkm.sys" Crash | Kioskea.net

• Part One
  • Go to in the NVIDIA folder>> C:NVIDIA
  • Find a file named "nvlddmkm.sy_" >> "C:NVIDIA DisplayDriver" Number of the driver version (eg 186.81) 'InternationalDisplaynvlddmkm.sy_
    • It may well be on the path differs depending on each computer.
  • copy the file to the root of C>> C:nvlddmkm.sy_
• Part Two
  • Go to the system folder where the drivers are stored>> C: WindowsSystem32 Drivers
  • Once in this folder, locate the file defective "nvlddmkm.sys" and rename it "nvlddmkm.sys.old"
• Part Three
  • Open the MS-DOS command prompt>> windows key + R> type "cmd"
  • Once the command prompt open, type the following commands:
    • 1) "cd" and type enter (you are the root of the drive => C
    • 2) "expand.exe nvlddmkm.sy_ nvlddmkm.sys" and then press Enter
  • "This command allows you to unzip the file" nvlddmkm.sy_ "that you placed at the root of C: and create the new" nvlddmkm.sys ".
  • Go get it>> C:nvlddmkm.sys
  • And put it in the folder>> C:WindowsSystem32drivers
  • Simply restart your PC.

Please note you need to run command prompt by right clicking it and selecting Run as administrator.

 

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Did you tried steps on below link:

Info: nVidia Driver Cleaning Guide

 

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I will suggest you to download the old driver and do not update it( To check if new drivers are the cause)

Download old drivers:

NVIDIA DRIVERS 285.62 WHQL

 

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Could you check in Nvidea driver version under device manager ?

 

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Try the beta release :

NVIDIA DRIVERS 290.53 BETA

 

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To avoid any further hardware failure follow Dai's advice to try another PSU.