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Memcheck 86+ -- error on all RAM, but no individual stick


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#1 MattShepherd

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Posted 22 October 2011 - 03:01 PM

Hi all,

Finally pinned down an ongoing BSOD problem to bad RAM, got the RAM replaced by the manufacturer (OCZ), but now I'm experiencing BSODs again and I'm having a heck of a time diagnosing them.

I ran Memcheck 86+ on all the modules twice -- the first time, it ran for eight hours with no errors detected (eight passes).

The second time, after about an hour, it came back with one error:

Test 7 :: Pass 0 :: 005fd0493c :: -1533.0 MB :: good b9b8311f bad b9b8331f :: error bits 200 :: Count 1

So I've run all the modules through Memcheck86+ individually.

Nothing at all: all four have been given about 90 minutes (three passes) and all four have come back with no errors.

I suppose I could just keep... testing them, possibly forever, but is there any way I could get a clue out of the initial error that would help me narrow down the culprit? Running all four for 8+ hours will really, really, REALLY screw up my ability to work.

Suggestions?

I'm currently running Win7 on just one memory stick to see if I can test for BSODs this way, and saving frequently to avoid data loss in case I "find" the bad stick.

Speccy snapshot:

http://speccy.piriform.com/results/P6Z8AagLKEWxK41FAXtn1T3

Most recent BSODs:


==================================================
Dump File : 101711-27580-01.dmp
Crash Time : 10/17/2011 6:52:59 AM
Bug Check String : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code : 0x00000050
Parameter 1 : ffffd8a0`0ad073ac
Parameter 2 : 00000000`00000000
Parameter 3 : fffff880`0129e6fe
Parameter 4 : 00000000`00000007
Caused By Driver : Ntfs.sys
Caused By Address : Ntfs.sys+ace55
File Description :
Product Name :
Company :
File Version :
Processor : x64
Computer Name :
Full Path : C:\Windows\Minidump\101711-27580-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 301,861
==================================================

==================================================
Dump File : 101511-20545-01.dmp
Crash Time : 10/15/2011 9:08:00 PM
Bug Check String : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code : 0x00000050
Parameter 1 : ffffd8a0`030ff3ac
Parameter 2 : 00000000`00000000
Parameter 3 : fffff880`012a46fe
Parameter 4 : 00000000`00000007
Caused By Driver : Ntfs.sys
Caused By Address : Ntfs.sys+ace55
File Description :
Product Name :
Company :
File Version :
Processor : x64
Computer Name :
Full Path : C:\Windows\Minidump\101511-20545-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 284,816
==================================================


A few of the most recent crashes don't seem to have generated BSOD files. Maybe a clue? Thanks for any advice!

Edited by hamluis, 13 November 2011 - 06:25 PM.
Moved from Win 7 to Internal Hardware.


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#2 cryptodan

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Posted 22 October 2011 - 03:04 PM

I would not speculate that the ram slots on the motherboard are faulty. Try each new stick of ram in each slot one at a time till you find the band ram slot.

#3 MattShepherd

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Posted 24 October 2011 - 05:20 AM

I haven't found a bad RAM slot yet, but I suspect it's slot #2: while running Memcheck on slots #1 and #2 return no errors after four passes (no errors), running Windows with memory in those two slots causes freezes and a sustained beep that sounds disconcertingly like the computer screaming after a while. But again no errors in Memcheck.

#4 MattShepherd

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Posted 24 October 2011 - 06:38 AM

More details:

Here's where I'm at, starting from the beginning of this thread to present:

I had 4 2GB OCZ memory sticks. I, II, IIIa, IVa.

Two of them turned up bad in Memcheck 86+ after extensive memory tests: IIIa and IVa. Send them back, got replacements of a very similar type (same specs, slightly different model #).

So now I have 4 2GB memory sticks: I, II, IIIb, IVb.

Started getting Bad_Pool_Header BSOD after putting IIIb and IVb into the computer.

Ran Memcheck86+ tests:

IVb in Slot 3: no errors (4 passes)

IIIb in Slot 3: no errors (6 passes).

CONCLUSION: SLOT 3 GOOD. IIIb good. IVb good.

FULL MEMTEST:

IIIb in Slot 1
IVb in Slot 2
I in Slot 3
II in Slot 4

ERROR: as detailed in first post. Test 7, Pass 0, etc.

INDIVIDUAL RAM TESTS IN MEMCHECK86+

Stick I, Slot 1
3 passes (1:30) -- NO ERRORS

Stick II, Slot 1
3 passes (1:30) -- NO ERRORS

Stick IIIb, Slot 1
3 passes (1:30) -- NO ERRORS

Stick IVb, Slot 1
3 passes (1:35) -- NO ERRORS

***USING STICK IVb in SLOT 1 in WINDOWS***

Seems to work OK.

MEMTEST86+

Sticks IVb and IIIb in Slots 1 & 2

4 passes (3:00) -- NO ERRORS

***USING STICK IIIb and IVb in WINDOWS***

Running Windows: after 20 minutes, sustained "screaming beep." Shutdown.


MEMTEST 86+

Stick IVb in Slot 1, Stick IIIb in Slot 3

1 pass (1:00) -- NO ERRORS

Windows FREEZES (no BSOD) -- straight freeze -- after five minutes of use

---

Stick IIIb in Slot 1:

Windows freezes on boot (on "Starting Windows" screen; does not enter Windows)

Stick IIIb in Slot 2:

Windows freezes on boot (on "Starting Windows" screen; does not enter Windows)
Windows System Restore freezes on boot (on loading slider; does not enter Windows System Restore)

Stick IIIb in Slot 3:

MEMCHECK86+ for giggles: 1 pass (30 minutes) -- NO ERRORS

Windows freezes on boot (on "Starting Windows" screen; does not enter Windows)
Windows System Restore freezes on boot (on loading slider; does not enter Windows System Restore)

Stick IVb in Slot 1:

Windows System Restore *does* boot; restore to earlier point
Windows loads

It looks like IIIb is the culprit, MAYBE. But why does Memcheck86+ not find any errors with it in any slot?

I've tested it in Slot 1 *and* Slot 2 with no errors in Memcheck86+.

There may be something I'm missing, and in this haze of frustration I'm looking right past it. Does any of the above seem to indicate a clear culprit to a more experienced/level-headed user? Is there something I'm missing here?

#5 MattShepherd

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Posted 25 October 2011 - 06:06 PM

And gosh DARN it, I just tried loading the confirmed GOOD RAM in slots 3 & 4, and... BSOD.

IVb in slot 1, I in 3, II in 4. STILL BSOD. I'm getting monumentally frustrated.

==================================================
Dump File : 102511-26722-01.dmp
Crash Time : 10/25/2011 7:01:16 PM
Bug Check String : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code : 0x00000050
Parameter 1 : ffffd8a0`11936238
Parameter 2 : 00000000`00000001
Parameter 3 : fffff880`01263f23
Parameter 4 : 00000000`00000007
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+7cc40
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7601.17640 (win7sp1_gdr.110622-1506)
Processor : x64
Computer Name :
Full Path : C:\Windows\Minidump\102511-26722-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 301,861
==================================================

ANY ideas? Anyone? I thought it was Slot 2 or stick IIIb, but I'm still in hell. The only stable config right now is IVb in Slot 1 and NOTHING ELSE. Halp!

#6 cryptodan

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Posted 25 October 2011 - 06:19 PM

Time to Replace the motherboard.

#7 MattShepherd

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Posted 25 October 2011 - 06:23 PM

*sob*

#8 MattShepherd

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Posted 25 October 2011 - 06:28 PM

What resources would you recommend to start investigating which mobos are compatible with my hardware? I'm not a fainting goat when it comes to swapping stuff around (obviously), but I'm a little too green to start figuring out which mobo I need for my CPU (A3 socket) and RAM.

#9 cryptodan

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Posted 25 October 2011 - 06:41 PM

Any of these: http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007625%20600184278&IsNodeId=1&name=AM3%2b%2fAM3 or these which are strictly AM3: http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007625%20600007943&IsNodeId=1&name=AM3

Edited by cryptodan, 25 October 2011 - 06:44 PM.


#10 MattShepherd

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Posted 25 October 2011 - 06:52 PM

Thanks, cryptodan.

In a last-ditch please-God-don't-make-me-change-the-mobo thought: most of the BSODs seem to happen when I leave the room for more than a couple of minutes; i.e. when the computer may try to go to "sleep." Is there any chance it's something to do with that?

#11 cryptodan

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Posted 25 October 2011 - 07:58 PM

Are all your drivers updated?

#12 MattShepherd

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Posted 26 October 2011 - 05:56 AM

Yes, to the best of my knowledge. I'll check again.

My BIOS isn't the latest, but flashing it scares the heck out of me.

#13 cryptodan

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Posted 26 October 2011 - 11:28 AM

Flashing the BIOS is extremely easy compared to 5 to 6 years ago.

#14 MattShepherd

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Posted 28 October 2011 - 07:33 AM

BIOS updated to latest version, all RAM back in all slots, drivers updated for mobo, sound card, video card, etc. I've been helped with BIOS configuration for the memory at the OCZ forums (in progress). Things seem... more stable, but then again, I've been working more in bursts, turning the computer off whenever I leave the room for more than a couple of minutes, rather than just letting it run.

#15 cryptodan

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Posted 28 October 2011 - 01:21 PM

Try using the computer normally as you did when you had these issues.




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