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Windows 7: BSOD & PC freezing issues - required .zip attached

28 Jun 2015   #31
swam

windows 7 64bit
 
 

Hi Arc,

Looks like the pc is recording the dumps. I checked the Minidump folder and they are all in there. I zipped up all the dumps which were missing from the previous .zip. Please find them attached.

cheers

Sam


My System SpecsSystem Spec
.
28 Jun 2015   #32
Arc

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit
 
 

Run memtest86+ once again, with all your memory modules attached.
How to Test and Diagnose RAM Issues with Memtest86+
Run memtest86+ for at least 8 consecutive passes.

If it start showing errors/red lines, stop testing. A single error is enough to determine that something is going bad there.

Let us know the result, by taking a camera snap of the memtest86+ screen before closing it.

And, there are four RAM sticks. Are they all came in a single KIT? If not, let us know about those in details.

_____________________________________________________
Code:
BugCheck C1, {fffff98005ae6c10, 3c8, 3f0, 22}

Probably caused by : memory_corruption ( nt!MmFreeSpecialPool+1bb )

Followup: MachineOwner
---------
My System SpecsSystem Spec
29 Jun 2015   #33
swam

windows 7 64bit
 
 

Hi Arc,

I set memtest running and after 10 minutes it reported an error. Please see a photo of the error attached.

cheers

Sam
My System SpecsSystem Spec
.

29 Jun 2015   #34
swam

windows 7 64bit
 
 

Hi Arc,

If I remember correctly, the 4 sticks of ram (2gb each) were bought in two batches. e.g I had 4gb originally, then purchased another 4gb later.

cheers

Sam
My System SpecsSystem Spec
29 Jun 2015   #35
Arc

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit
 
 

Quote   Quote: Originally Posted by swam View Post
Hi Arc,

If I remember correctly, the 4 sticks of ram (2gb each) were bought in two batches. e.g I had 4gb originally, then purchased another 4gb later.

cheers

Sam
That is a bad idea. RAM is to purchase only in KITS, two or more RAM modules tested to work together.

Quote   Quote: Originally Posted by swam View Post
Hi Arc,

I set memtest running and after 10 minutes it reported an error. Please see a photo of the error attached.

cheers

Sam
My first suggestion to you was to test the RAM, you reported no issue and then all those headbangings! I really doubt what you have done that time which took that much effort, time and energy to get back to the first place.

Anyway, 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.

If it is a bad RAM, you need to change the RAM. Take the other existing (good) RAM to the shop and get one of the exactly same specification. The best is, get a totally new RAM KIT.

If it is a bad slot, it is a motherboard issue. But changing the motherboard needs a preparation for most of us; so dont populate that slot for the time being.
My System SpecsSystem Spec
29 Jun 2015   #36
swam

windows 7 64bit
 
 

Hi Arc,

On the very original MEMTEST tests, I ran them for a very long time (longer than recommended) and nothing occured. It just must be the case that some memory or the slot itself has finally decided to properly fail.

When I originally purchased my 4gb (years ago) I had no need for 8gb, but of course over time I needed more for graphics programs etc. So I only purchased them in 4gb batches. 4 + 4 = the 8gb I now have.

I'll run the next memtest tests as you mentioned.

Thanks again for your help.

cheers

Sam
My System SpecsSystem Spec
02 Jul 2015   #37
swam

windows 7 64bit
 
 

Hi Arc,

I ran Memtest (9 passes) on each stick of ram in their respective slot, but received no errors. So I thought I would try all 4 sticks again, and Memtest reported an error.

It's odd that with all 4 sticks I get an error, but with each stick in their respective slot it reports no error?

I'm going to go ahead and test stick 1 in slots 2 3 4 etc.

thanks

Sam
My System SpecsSystem Spec
02 Jul 2015   #38
swam

windows 7 64bit
 
 

Hi Arc,

Is it worth checking the ram voltage in my BIOS? I read around that Memtest can produce false positives when running a test on all sticks at once, and ram issues can be caused by issues with the voltage.

cheers

Sam
My System SpecsSystem Spec
02 Jul 2015   #39
Arc

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit
 
 

If you are worried about the voltages, set the BIOS to default.
How To Clear CMOS (Reset BIOS)
But that is not a fact actually.

If the RAM modules are not from a single KIT, then this situation may occur. Modules will work nice individually, but will fail to work together.

There is one more possibility seen in a few cases that some boards that they cannot run properly with all the DIMM slots occupied. That is a corruption from the part of the motherboard. Use only one channel (two slots), leave the other two free. See if it causes any more memory corruption or not.
My System SpecsSystem Spec
02 Jul 2015   #40
swam

windows 7 64bit
 
 

Hi Arc,

I'll run the pc with the one channel and see how it goes.

cheers

Sam
My System SpecsSystem Spec
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 BSOD & PC freezing issues - required .zip attached




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