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Windows 7: Having bsods relating to ntoskrnl.exe+75c00

24 Jul 2013   #81
Northernsoul55

Microsoft Community Contributor Award Recipient

Windows 7 Professional 64bit
 
 

Your latest logs show:

Code:
 
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************
Use !analyze -v to get detailed debugging information.
BugCheck 50, {fffff880008b48a0, 0, fffff80002e4cc38, 0}
 
Could not read faulting driver name
Probably caused by : cng.sys ( cng!GatherRandomKey+294 )
Followup: MachineOwner
---------
7: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************
PAGE_FAULT_IN_NONPAGED_AREA (50)
This crash was caused by cng.sys part of MS cryptolgy.
Since it is a protected OS file, it is not likely the cause, but you should run a
system file check to verify and repair OS files:





Run SFC to check the integrity of all Windows 7 system files:
  • Click on Start > Type in search cmd
    Right-click cmd after results are displayed and Run as Administrator
    Type SFC /scannow at the prompt
    (Note: There is a space between SFC and /scannow)
SFC Tutorial

I did see some suggestion of networking related issues but nothing concrete,
so I would suggest updating all your networking devices to the latest versions.

As your logs are not showing anything definitive:

Run Driver Verifier to scan for any corrupted drivers which may be causing problems, this program works by running various stress tests on drivers, in order to produce a BSOD which will locate the driver; run for least 24 hours:

Driver Verifier - Enable and Disable

Before enabling DV, make it sure that you have earlier System restore points made in your computer.

If you fail to get on the Desktop because of DV, Boot into Advanced Boot Options > Safe mode. Disable DV there. Now boot normally again, and try following the instruction of enabling DV again.
If you cannot boot in Safe mode too, do a system restore to a point you made earlier.

Also run windows update.

cheers
Dave


My System SpecsSystem Spec
.
24 Jul 2013   #82
Dan82

Windows 7 64 bit
 
 

I'll try the SFC scan soon, do you think i should use the diagnostic tool again?

I am pretty sure the network drivers are upto date i did dl them from the Asus site.

Done sfc scan, it reported some corrupted files unable to repair after doing 3 times....must be due to what i said previously.
My System SpecsSystem Spec
24 Jul 2013   #83
Northernsoul55

Microsoft Community Contributor Award Recipient

Windows 7 Professional 64bit
 
 

Ok, unfortunately repairing SFC errors is not my field, and the member who deals with this
type of issue is on holiday till end of month and will most likely have a backlog.

Do you have a Windows 7 installation disk? If so this tutorial to repair missing or corrupted files
may be of some help, if not then there is a link in the tutorial to download the ISO :

http://www.sevenforums.com/tutorials/42776-extract-files-windows-7-installation-dvd.html

If it will not repair, then I will flag up another member to assist.

Cheers

Dave
My System SpecsSystem Spec
.

24 Jul 2013   #84
Dan82

Windows 7 64 bit
 
 

Thinking of just buying Windows 8 soon and installing.

I had 1 more bsod memory management whilst opening Borderlands 2, this makes me think a memory setting isn't quite correct still, i noticed in BIOS the command rate is 1T should this be 3T? timings are 10-10-10-27 at 1.5v which is recommended but do not know wether to have 1T/2T/3T.Also in virtual memory settings what do i set there for 16GB ram?

System seems way more stable just something isn't quite right...maybe reinstall or Windows 8 fixes but i am sure the above is something to do with it.
My System SpecsSystem Spec
25 Jul 2013   #85
Northernsoul55

Microsoft Community Contributor Award Recipient

Windows 7 Professional 64bit
 
 

Hi,

To be honest I'm unsure about the correct settings and wouldn't like to advise
you about something I'm not sure of, please take a look at this link which may or may not help:

http://www.overclock.net/t/1411077/haswell-overclocking-thread

Windows 8!!
My System SpecsSystem Spec
25 Jul 2013   #86
Dan82

Windows 7 64 bit
 
 

I tried Borderlands 2 with 1 stick, it didn't freeze or crash for 20mins so might be ok i hope.(it would pause once i've logged in before and crash within 5mins)

Will test for a few days with just 1 stick in system, if it bsod i will switch to other to see if that does too.
My System SpecsSystem Spec
25 Jul 2013   #87
Northernsoul55

Microsoft Community Contributor Award Recipient

Windows 7 Professional 64bit
 
 

Haven't you ran Memtest a few times now with no errors?

I'm wondering if the DIMM's weren't seated properly or suffering from some for of "Chip creep"
My System SpecsSystem Spec
25 Jul 2013   #88
Dan82

Windows 7 64 bit
 
 

Yeah one dimm definitely wasn't seated properly, i pushed it in better but still got bsods.

Not sure wether to put it back in or just return....maybe i should try 1 stick for a few days and see how it goes?

Memtest passed 12h before with 0 errors yes although the timings were totally different.
My System SpecsSystem Spec
25 Jul 2013   #89
Northernsoul55

Microsoft Community Contributor Award Recipient

Windows 7 Professional 64bit
 
 

Yeah, try one stick until you BSOD, if you don't crash then it may be a slot issue or incompatible memory

Follow Part 3 in the memtest tutorial if you get any errors etc.

There is a utility on the Asus website for memory tweaks, it may help, but try the above first:

MAXIMUS VI HERO - Motherboards - ASUS

If the above doesn't correct the issue, then I will send up the Bat signal and call for
help as I'm running out of ideas.

Also looking at your RAM specs again, it seems they are the correct type and size!!
My System SpecsSystem Spec
26 Jul 2013   #90
Dan82

Windows 7 64 bit
 
 

Still no bsods and bl2 ran fine.

I'll test for 2 more days and if none I'll return the ram it seems.
My System SpecsSystem Spec
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 Having bsods relating to ntoskrnl.exe+75c00




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