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Windows Server 2008 R2 keeps rebooting -BSOD

Fully patched

getting this in Event log

Log Name:      System
Source:        Microsoft-Windows-WER-SystemErrorReporting
Date:          8/17/2010 1:30:00 PM
Event ID:      1001
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      SVR-ENT08R2-VM
Description:
The computer has rebooted from a bugcheck.  The bugcheck was: 0x0000001a (0x0000000000041201, 0xfffff68000014180, 0x0000000000000003, 0xfffffa801c603010). A dump was saved in: C:\Windows\MEMORY.DMP.

this is copy from NirSoft AppCRash app


==================================================
Dump File         : 081610-68047-01.dmp
Crash Time        : 8/16/2010 10:39:18 PM
Bug Check String  : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code    : 0x00000050
Parameter 1       : fffffd7f`fffffff4
Parameter 2       : 00000000`00000001
Parameter 3       : fffff800`0165d3b0
Parameter 4       : 00000000`00000007
Caused By Driver  : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+70600
File Description  : NT Kernel & System
Product Name      : Microsoft® Windows® Operating System
Company           : Microsoft Corporation
File Version      : 6.1.7600.16539 (win7_gdr.100226-1909)
Processor         : x64
Computer Name     :
Full Path         : C:\Windows\Minidump\081610-68047-01.dmp
Processors Count  : 16
Major Version     : 15
Minor Version     : 7600
==================================================

==================================================
Dump File         : 081710-69202-01.dmp
Crash Time        : 8/17/2010 1:29:58 PM
Bug Check String  : MEMORY_MANAGEMENT
Bug Check Code    : 0x0000001a
Parameter 1       : 00000000`00041201
Parameter 2       : fffff680`00014180
Parameter 3       : 00000000`00000003
Parameter 4       : fffffa80`1c603010
Caused By Driver  : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+70600
File Description  : NT Kernel & System
Product Name      : Microsoft® Windows® Operating System
Company           : Microsoft Corporation
File Version      : 6.1.7600.16539 (win7_gdr.100226-1909)
Processor         : x64
Computer Name     :
Full Path         : C:\Windows\Minidump\081710-69202-01.dmp
Processors Count  : 16
Major Version     : 15
Minor Version     : 7600
==================================================

==================================================
Dump File         : 081610-67657-01.dmp
Crash Time        : 8/16/2010 10:24:31 AM
Bug Check String  : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code    : 0x00000050
Parameter 1       : ffffffff`f8008000
Parameter 2       : 00000000`00000000
Parameter 3       : fffff800`0170cc30
Parameter 4       : 00000000`00000002
Caused By Driver  : Ntfs.sys
Caused By Address : Ntfs.sys+11aa9
File Description  :
Product Name      :
Company           :
File Version      :
Processor         : x64
Computer Name     :
Full Path         : C:\Windows\Minidump\081610-67657-01.dmp
Processors Count  : 16
Major Version     : 15
Minor Version     : 7600
==================================================




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piotrmikula108
Asked:
piotrmikula108
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1 Solution
 
cdowdyCommented:
My vote would be bad ram. I'd run your favorite memtest variant overnight and see what you get.
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ChiefoftheChissCommented:
Windows 2008 server comes with its own RAM diag tool
Click Start
in the search box start to type
windows memory diagnostic

you'll see it pop up on the top of the list.
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piotrmikula108Author Commented:
my gut feeling is the same - RAM, will run the test and let you, I manage the server remotely so will it record the results in event log once the server is back up?
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paulstormCommented:
You may also want to run a chkdsk on the drive where you have you paging file, as the disk could be faulty, generating the BSOD when the memory writes (or tries to write) to the pagefile.
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ChiefoftheChissCommented:
Yes, which is a great part of using the built in Windows one,


To find the results of your Windows Memory Diagnostic Tool after the computer restarts, do this:
1) Right-click on COMPUTER in your Vista start menu and choose MANAGE.
2) In the Computer Management screen that pops up, expand the EVENT VIEWER in the left-hand panel by clicking on the little arrow to the left of the words EVENT VIEWER.
3) From this expanded menu, expand WINDOWS LOGS.
4) On this expanded menu, left-click on SYSTEM.
5) Now, the middle panel will be populated with a huge number of events. To find the one you're looking for, click on FIND in the right panel.
6) In the Find window, type "MemoryDiagnostics" (all one word, but without the quotes) and click the FIND NEXT button. (Note: you could just type "memory" and still find what you're looking for.)
7) Now, in the panel below, you'll see two tabs: GENERAL and DETAILS. Click on DETAILS.
8) Now, you'll see data about your test. If the test passed, you'll see the word PASS on about the fifth line down next to COMPLETION TYPE.
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ChiefoftheChissCommented:
it would be nice to have someone who can walk up to it and tell it to run an extended test though, which can be changed by hitting F10 while the test is running.
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piotrmikula108Author Commented:
mem test and chkdsk had no errors, all drivers and firmware is up to date - I will keep investigating
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paulstormCommented:
I don't suppose there is a usb or network backup drive that it could be writing to?
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piotrmikula108Author Commented:
No,but it has a SAN thou where all the vms are stored
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piotrmikula108Author Commented:
well, after updating BIOS the server has been stable for the past week
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paulstormCommented:
I'd say you have solved it as updating the BIOS will bring the rest of the hardware into line.
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