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Windows 7: BSOD when idle, 0x..50 and 0x..4e

26 Apr 2012   #1
1x4n

windows 7 ultimate x64
 
 
BSOD when idle, 0x..50 and 0x..4e

Hello all, i'm new to this forum.
So glad to find a forum specifically for windows seven.

I have been a 7 user for almost 2 years in my laptop but just install 7 in my computer recently.
In my laptop i've never found a bsod.
When i success install windows 7 in my computer, i do the usual driver and software install.
When all is done i put on my music player and leave it to take a drink.
When i come back my computer just restarted and show a log of bsod.
It happened not everyday, but quite a lot that start to irritate me.
I've just upgraded all my computer parts and update all driver so i think it's not a hardware problem.

I've been googling and find that an error is because of ntoskrnl.exe.
I've attached my minidump file.
Mostly the bsod code is 0x..50 and 0x..4e

My question is
Is it true the bsod is because of ntoskrnl.exe?
Is repairing the windows will simply solve the problem?


My System SpecsSystem Spec
.
26 Apr 2012   #2
zigzag3143

Win 8 Release candidate 8400
 
 


These crashes were caused by memory corruption possibly your 2 + year old ESET.
Please run these two tests to verify your memory and find which driver is causing the problem.


* If you are overclocking anything reset to default before running these tests.
In other words STOP!!!

* If you have a Raid update its Driver.




Memtest.
Quote:
*Download a copy of Memtest86 and burn the ISO to a CD using Iso Recorder or another ISO burning program. Memtest86+ - Advanced Memory Diagnostic Tool

*Boot from the CD, and leave it running for at least 5-7 passes.

Just remember, any time Memtest reports errors, it can be either bad RAM or a bad motherboard slot.

Test the sticks individually, and if you find a good one, test it in all slots.

Any errors are indicative of a memory problem.

If a known good stick fails in a motherboard slot it is probably the slot.


RAM - Test with Memtest86+






Driver Verifer

Quote:
Using Driver Verifier is an iffy proposition.
Most times it'll crash and it'll tell you what the driver is.
But sometimes it'll crash and won't tell you the driver.
Other times it'll crash before you can log in to Windows.
If you can't get to Safe Mode, then you'll have to resort to offline editing of the registry to disable Driver Verifier.

I'd suggest that you first backup your stuff and then make sure you've got access to another computer so you can contact us if problems arise.
Then make a System Restore point (so you can restore the system using the Vista/Win7 Startup Repair feature).

In Windows 7 you can make a Startup Repair disk by going to Start....All Programs...Maintenance...Create a System Repair Disc - with Windows Vista you'll have to use your installation disk or the "Repair your computer" option at the top of the Safe Mode menu .

Then, here's the procedure:
- Go to Start and type in "verifier" (without the quotes) and press Enter
- Select "Create custom settings (for code developers)" and click "Next"
- Select "Select individual settings from a full list" and click "Next"
- Select everything EXCEPT FOR "Low Resource Simulation" and click "Next"
NOTE: You can use Low Resource Simulation if you'd like.
From my limited experimentation it makes the BSOD's come faster.
- Select "Select driver names from a list" and click "Next"
Then select all drivers NOT provided by Microsoft and click "Next"
- Select "Finish" on the next page.

If you are using win 8 add these

- Concurrency Stress Test
- DDI compliance checking

Reboot the system and wait for it to crash to the Blue Screen.
Continue to use your system normally, and if you know what causes the crash, do that repeatedly.
The objective here is to get the system to crash because Driver Verifier is stressing the drivers out.
If it doesn't crash for you, then let it run for at least 36 hours of continuous operation.
Reboot into Windows (after the crash) and turn off Driver Verifier by going back in and selecting "Delete existing settings" on the first page, then locate and zip up the memory dump file and upload it with your next post.


If you can't get into Windows because it crashes too soon, try it in Safe Mode.
If you can't get into Safe Mode, try using System Restore from your installation DVD to set the system back to the previous restore point that you created.

Thanks to JGriff2 & Usasma.
Using Driver Verifier to identify issues with Windows drivers for advanced users

Driver Verifier

Using Driver Verifier (Windows Drivers)
My System SpecsSystem Spec
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 BSOD when idle, 0x..50 and 0x..4e




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