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Windows 7: BSOD - nvlddmkm.sys / dxgkrnl.sys

29 Aug 2014   #1
doingworkallday

Windows 7 Ultimate x64
 
 
BSOD - nvlddmkm.sys / dxgkrnl.sys

System consistently blue screening for the past month or so. I thought it was a faulty system file and ended up replacing old SSD, buying a new motherboard, installing a new copy of windows 7 ultimate (upgraded from windows 8.1 (: ) and replaced my RAM twice. and after all this nonsense I'm beginning to get the errors again. I have run memtest over and over and come up with nothing. Ive run through these forums enough times and tried installing and reinstalling drivers enough times that I have run out of options and am in need of your help please.


My System SpecsSystem Spec
.
30 Aug 2014   #2
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Hello and welcome doing I don't know jhow old your machine is so one thing it looks like you have not tried out is the PSU.
Now I have two options to view to see if the power output

Using HW Info PSU

Download HW Info and pick the right bit version -
HWiNFO, HWiNFO32/64 - Download -(copy and paste this site into the search bar) If you do not need the running information in the smaller right hand panel close it. In the left hand window click on the + for the individual device groupings and they will open out to the various components.

Go on opening out further until you get to the device itself. click on it and it will highlight. In the right hand window there will be a very detailed description of that device as in brand, speeds model number etc etc These are very detailed and are just what is needed for searching for drivers etc.

See my pic for an example - in this I have shown my power but it is a laptop and a desktop will show more details if you scroll down that listing. Now if your mobo is an Asus scrolling down that Sensor listing you might come across a section titled FINTEC that is the section which will give you the rail voltages and the BIOS battery called Vbatt


An alternative is this bit please use a digital meter and NOT an analogue one as they inject typically 9v into a circuit to test it and doing that on a 3.3v or 5v rail will not do anything any good!!
PSU - Test DC Output Voltage


My System SpecsSystem Spec
30 Aug 2014   #3
doingworkallday

Windows 7 Ultimate x64
 
 

I completely forgot to mention I just bought an AX860 a week ago thinking that might have been a problem. So currently as it stands everything in my pc is a week old besides graphics card and cpu which I bought a year and a half ago.
My System SpecsSystem Spec
.

30 Aug 2014   #4
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Ok mate well that rules out just about the PSU -very nice choice by the way

Now where to go next?? Just one question the media you installed the Ultimate from was it retail or an OEM? and genuine Microsoft - not being funny but there are some who buy from sites like Ebay to their regret.
My System SpecsSystem Spec
30 Aug 2014   #5
doingworkallday

Windows 7 Ultimate x64
 
 

It was retail. I have run benchmark tests on my gfx card and it comes up with no errors and tops out and 82c
My System SpecsSystem Spec
30 Aug 2014   #6
derekimo

Microsoft Community Contributor Award Recipient

 
 

Additionally,

Disk or file corruption seems to be a common theme in your dumps as well as memory.

Are you using Memtest86+ to test your RAM? 8 complete passes is necessary.

information   Information
MemTest86+

Run a minimum of 8 passes, preferably overnight, or until errors occur using MemTest86+.

Use this tutorial to help you use MemTest86+:
RAM - Test with MemTest86+


Please perform the following tests,

chkdsk /r

SeaTools for DOS and Windows

SFC /SCANNOW Command - System File Checker
My System SpecsSystem Spec
30 Aug 2014   #7
doingworkallday

Windows 7 Ultimate x64
 
 

I have run memtests already on all 3 diff sets of memory sticks each of which have worked in other computers and passed on the test. Sfc check comes up with nothing. And chkdsk comes up with nothing I'm honestly confused and have pretty much entirely rebuilt the computer from scratch besides gfx card and cpu.
My System SpecsSystem Spec
31 Aug 2014   #8
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Ok D mate I don't know if you have run any malware scans but if not try these

http://www.superantispyware.com/

http://www.malwarebytes.org/products/malwarebytes_free/

http://www.bleepingcomputer.com/download/adwcleaner/

download from bleeping computer delete any rubbishthese find.
if these come nothing then use this
Download Kaspersky Rescue Disk 10 just boot from this disk / USB I prefer the disk but.... It will scan from power up and before Windows which isn't involved anyway starts.
My System SpecsSystem Spec
31 Aug 2014   #9
doingworkallday

Windows 7 Ultimate x64
 
 

Nothing came up as far as viruses or any of that. Not sure what else to do
My System SpecsSystem Spec
31 Aug 2014   #10
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Well it has me a bit stumped too now.

The only thing I can suggest now is back up and re install and try using this
Clean Reinstall - Factory OEM Windows 7 cos I suppose there is always the outside possibility that the media you have is corrupted??
My System SpecsSystem Spec
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 BSOD - nvlddmkm.sys / dxgkrnl.sys




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