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Windows 7: BSOD at random times, driver problem 99,9% likely

15 Apr 2014   #11
ingelectronico

Windows 7 Enterprise x64 SP1
 
 

Hi Arc
I tested the ram with mem test and found several errors. Check the attached image.
The funny thing is that windows memory tests don't show any error.
Best regards


My System SpecsSystem Spec
.
16 Apr 2014   #12
Arc

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit
 
 

Quote   Quote: Originally Posted by ingelectronico View Post
Hi Arc
I tested the ram with mem test and found several errors. Check the attached image.
The funny thing is that windows memory tests don't show any error.
Best regards
No image is attached unfortunately.

And you need not to use an inferior tool like windows memory diag.

Now follow the "Part 3: If You Have Errors:" of How to Test and Diagnose RAM Issues with Memtest86+

Errors/red lines means one or more RAM is faulty. But the fault may occur due to a faulty DIMM slot, too, which is a motherboard component. Using memtest86+, you can discriminate between a faulty RAM and a faulty motherboard.

How? Say you have two RAM sticks and two DIMM slots. You obtained errors at the test with all RAM sticks installed. Now, remove all the sticks but one. Test it in all the available slots, one by one. Continue the same procedure for all the available sticks.
How to make the inference that is it a RAM issue or it is a motherboard issue? Suppose you have got the result like that:

testSlot1Slot2
RAM1ErrorError
RAM2GoodGood
It is a RAM, a bad RAM.

But if you have got a result like that:

testSlot1Slot2
RAM1ErrorGood
RAM2ErrorGood
It is a motherboard issue. The particular slot is bad.

Otherwise, if you think this process is time consuming, you may replace the RAM, either with the matching specs of the existing, or the entire kit; but the possibility of a bad slot will remain there.
My System SpecsSystem Spec
16 Apr 2014   #13
ingelectronico

Windows 7 Enterprise x64 SP1
 
 

Sorry, I tried to attach the image from the cellphone. Here it goes again. I have 2 memory modules, the original one, of 4Gbytes and an additional Kingston of 8Gbytes (total 12 Gigabytes). For the test shown in the image, I just kept the original one and showed that was failing around 2350Mbytes range.
Today I called Lenovo support and they run their memory diagnostic tool, without errors, so they rejected the case. They just recommended me to update the BIOS (which I did successfully).
I believe is a motherboard problem, because when I add the 8Gbyte module, I also get errors in the memory range of 4700Mbytes, which is double the 2350.
Anyway, I'll mark the case as solved, and just re-post a new thread with more information if the problem continued.
Best regards
My System SpecsSystem Spec
.

16 Apr 2014   #14
Arc

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit
 
 

No problem.
My System SpecsSystem Spec
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 BSOD at random times, driver problem 99,9% likely




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