I am running Windows 7 64bit on a HP Pavilion desktop which originally came with Vista 32-bit. The systems shuts down for no apparent reason and goes back to log in screen. When I reboot, this is the message I get. Problem signature: Problem Event Name: BlueScreen OS Version: 6.1.7600.2.0.0.256.48 Locale ID: 4105 Additional information about the problem: BCCode: 1a BCP1: 0000000000041287 BCP2: 0000000000000000 BCP3: 0000000000000000 BCP4: 0000000000000000 OS Version: 6_1_7600 Service Pack: 0_0 Product: 256_1 Files that help describe the problem: C:\Windows\Minidump\123010-25396-01.dmp C:\Users\Faisal\AppData\Local\Temp\WER-96346-0.sysdata.xml Read our privacy statement online: http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409 If the online privacy statement is not available, please read our privacy statement offline: C:\Windows\system32\en-US\erofflps.txt I have uploaded the minidump files in my skydrive. http://cid-3376df56415f6e1c.office.live.com/documents.aspx#s_dvHead Please look at it and let me know.

DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1) An attempt was made to access a pageable (or completely invalid) address at an interrupt request level (IRQL) that is too high. IMAGE_NAME: memory_corruption Bug Check 0xDA: SYSTEM_PTE_MISUSE This indicates that a page table entry (PTE) routine has been used in an improper way. STACK_TEXT: nt!KeBugCheckEx nt! ?? ::FNODOBFM::`string'+0xb43b nt!MiInsertCachedPte+0x1c9 nt!MmUnmapLockedPages+0xf0 nt!MiWaitForInPageComplete+0x711 nt!MiIssueHardFault+0x28b nt!MmAccessFault+0x11c4 nt!KiPageFault+0x16e nt!CcMapData+0x111 Ntfs!FindFirstIndexEntry+0x1fa Ntfs!NtOfsFindRecord+0xb7 Ntfs!NtfsRepairDeleteObjectIdIndexEntryByFileReference+0xd8 Ntfs!NtfsVerifyAndFixFileRecord+0xe8d Ntfs!NtfsRepairItem+0xb01 NTFS_FILE_SYSTEM (24) STACK_TEXT: nt!ExpInterlockedPopEntrySListFault16 nt!ExAllocatePoolWithTag+0x276 Ntfs!NtfsRestartIndexEnumeration+0x271 Ntfs!NtfsQueryDirectory+0x94e Ntfs!NtfsCommonDirectoryControl+0xa1 Ntfs!NtfsFsdDirectoryControl+0x10f Run Chkdsk /f /r to detect and resolve any file system structural corruption. You must restart the system before the disk scan begins on a system partition. Please also download memtest86+ [1], burn a new bootable CD (use a CD-RW if possible) from the ISO (download and use ImgBurn [2] to do this or make double click on the ISO in Windows 7), reboot your PC and scan your RAM 4-5hours for errors. If it detects errors, replace the faulty RAM. Also update the BIOS (yours is from 2007): BiosVersion = 5.21 BiosReleaseDate = 11/02/2007 SystemManufacturer = HP-Pavilion SystemProductName = GX769AA-A2L a6318f SystemFamily = 103C_53316J André [1] http://www.memtest.org/download/4.10/memtest86+-4.10.iso.zip [2] http://www.imgburn.com/index.php?act=download"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

Hello Andre, Thanks so much for the reply. I just finished running both tests, but could not find any problem. BTW, I used a flash drive to run the memtest86. I will let you know if I come across the same problem again. On a side note, how can I update my bios. When I checked HP website, it's only giving me update that are compatible with Vista only. When I try to run it, it says it does not meet the minimum requirement. Any idea? My motherboard is MCP61PM-HM

I ran the memtest86 for another 9 hours....still it couldn't find any problem. I have the uploaded the latest dump files as Dump2 here http://cid-3376df56415f6e1c.office.live.com/browse.aspx/Dump2 The blue screen appears when I am not using it. But when I keep doing something, it does not appear. When idle, it restarts and comes to the login page, it again shuts down and keeps doing it.

It still looks like a hardware issue . You get too many different crashes at one day. maybe the Motherboard is damaged or the RAM timings are too high.. STACK_TEXT: nt!MiDeletePfnList +0x252 nt!MiDeleteAddressesInWorkingSet +0x307 nt!MmCleanProcessAddressSpace +0x96 nt!PspExitThread+0x47f nt!NtTerminateProcess+0x138 nt!KiSystemServiceCopyEnd+0x13 <Unloaded_Unknown_Module_00000000`00000001> +0x777c0179 IMAGE_NAME: memory_corruption FAILURE_BUCKET_ID: X64_0xD1_nt!MiDeletePfnList+252 Which RAM do you use? Can you please run CPU-Z [1] and post pictures of the SPD and memory tab?"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

Here are the screenshots http://cid-3376df56415f6e1c.office.live.com/browse.aspx/.Public In the morning, I opened my Desktop cover to see if anything is wrong with the memory. I took them out and installed again. The computer then stopped booting and giving me a beeping sound. I thought the connection is loose. BTW, my computer came with 2 GB of RAM, then I installed another 2 GB RAM but with higher clock speed (I guess that wasn't the problem as they were performing well together for 2 years) Anyway, the screenshots I uploaded are the 2 GB(2x1GB) RAM it originally came with. I am trying to see if my computer still crashes. If it does, then I am almost sure that one or both of the original RAMs are faulty. If it doesn't then it's probably one or both of the later RAMs.

Sorry to bug you again....After removing my 2GB RAM, the other 2GB were working fine until recently ...I'm getting the same blue screen error again...So, I was thinking it's the damaged motherboard...or could be insufficient power supply(?)...My system originally came with 2 GB of RAM and integrated video...Later on, I added ATI Radeon HD 512MB GPU and 2 more GB RAM while my power supply was only 250W and it's a 2007 system..So, can the problem be insufficient PSU? After experiencing BSOD so many times, I'm thinking of upgrading now coz I can't figure out the problem..

The CR 1T can be the cause. Change the Command Rate to 2 in the BIOS."A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

I didn't know how to change the CR to 2T but when I checked with CPU-Z, it showed 2T. Here is the screenshot http://cid-3376df56415f6e1c.office.live.com/browse.aspx/.Public?uc=2 Anyhow, I reinstalled my OS formatting my HDD. Still the problem persists. I have uploaded the new dump files here http://cid-3376df56415f6e1c.office.live.com/browse.aspx/.Public?uc=2 Please have a look and let me know. This is already bugging me for more than a month. Thanks a lot.

The last picture shows CR1, the newer shows 2T. So you changed it. The latest crash is casued by the ATI/AMD driver: Image path: \SystemRoot\system32\DRIVERS\atikmdag.sys Image name: atikmdag.sys Timestamp: Wed Oct 27 04:29:53 2010 Install the 11.1 driver, please. Bug Check 0x19: BAD_POOL_HEADER The BAD_POOL_HEADER bug check has a value of 0x00000019. This indicates that a pool header is corrupt. http://msdn.microsoft.com/en-us/library/ff557389%28VS.85%29.aspx enable Driver verifier to get the causing driver: http://www.sevenforums.com/tutorials/101379-driver-verifier-enable-disable.html http://support.microsoft.com/?kbid=244617 when you get a new BSOD, boot to safe mode, disable driver verifier, reboot to normal mode and upload the newest dmp file from the folder C:\Windows\Minidump to your public SkyDrive"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

I updated the driver to 11.1 from the ATI website. Enabled verifier with non-microsoft drivers and disabled it after getting the BSOD. I uploaded the last two dump files (they were created 2 minutes apart) here named dump.zip http://cid-3376df56415f6e1c.office.live.com/browse.aspx/.Public?uc=1

SYSTEM_SERVICE_EXCEPTION (3b) An exception happened while executing a system service routine. Arguments: Arg1: 00000000c0000005, MODULE_NAME: hardware FAILURE_BUCKET_ID: X64_IP_MISALIGNED it maybe the damaged motherboard."A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

It could be the motherboard, but after I removed my Graphics card, everything works perfectly....no more BSOD. Now I'm wondering if my other 2 GB RAM were malfunctioning due to the GPU in place!

maybe. I don't use a graphic card any longer (only the IGP on my motherboard). But I remember that I also had trouble inserting some long graphic card because of the location of the RAM slots"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/