Hello, About two months ago I installed a new motherboard, cpu and memory in my wife's computer. A couple of weeks ago she began to get regular crashes. I've been saving minidumps for the last few days and the link to them is: http://cid-1f155091249f9f1f.office.live.com/self.aspx/Collected%20log%20files/Minidump.zip You can see that there are a variety of messages, beyond my meager powers to interpret. System specs are: OS: Windows 7 Ultimate 64 AMD Athlon II X2 250 Regor 3.0GHz Dual-Core Processor ADX250OCGQBOX ASUS M4A77D AM3 AMD Motherboard G.SKILL 4GB (2 x 2GB) DDR2 SDRAM F2-6400CL5D-4GBPQ Older power supply and video card Several old SATA hard drives I ran memtest for several hours and no errors for RAM I'm thinking about swapping out video card and/or power supply Any suggestions would be humbly appreciated. Thanks, John

Hi, After checking this issue, Probably caused by: dxgkrnl.sys(DirectX Graphics Kernel) It indicates that you may have a driver conflict, so I suggest you could try to update your BIOS and video card driver to latest. Hope it helps. Regards, Alex Zhao Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi John, PAGE_FAULT_IN_NONPAGED_AREA (50) - Invalid system memory was referenced. STACK_TEXT: nt!KeBugCheckEx nt! ?? ::FNODOBFM::`string'+0x40e8b nt!KiPageFault+0x16e 0xfffff87f`e3adff00 dxgkrnl!VIDPN_MGR::PinVidPnSourceMode+0x245 dxgkrnl!VIDPN_MGR::AddFunctionalPathToVidPnTopology+0x669 dxgkrnl!VIDPN_MGR::RestorePresentPathToActiveVidPn+0x32a dxgkrnl!VIDPN_MGR::_MonitorEventHandler+0x542 dxgkrnl!MONITOR_MGR::_IssueMonitorEvent+0x130 dxgkrnl!MONITOR_MGR::_EnableDisableMonitor+0x1f1 dxgkrnl!MonitorEnableDisableMonitor+0x173 dxgkrnl!DpiGdoDispatchInternalIoctl+0x99c dxgkrnl!DpiDispatchInternalIoctl+0xb9 nvlddmkm +0x87af2 Image name: nvlddmkm.sys Timestamp: Fri Jul 09 23:15:58 2010 So update the nVIDIA graphics driver : http://www.nvidia.com/Download/index.aspx?lang=en-us 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. BUCKET_ID: X64_0xD1_CODE_AV_NULL_IP _ndis!ndisMDispatchReceiveNetBufferLists+11 You have an instruction pointer which is NULL. SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M (1000007e) - This bug check indicates that a system thread generated an exception that the error handler did not catch. Arguments: Arg1: ffffffffc0000005 - Access violation CHKIMG_EXTENSION: !chkimg -lo 50 -d !dxgmms1 fffff88003bb41b8 - dxgmms1!VidSchiWaitForSchedulerEvents+f8 [ 15:35 ] 1 error : !dxgmms1 (fffff88003bb41b8) MODULE_NAME: memory_corruption X64_MEMORY_CORRUPTION_ONE_BIT This looks like a hardware issue. Please 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), reboot your PC and scan your RAM 4-5hours for errors. If it detects errors, replace the faulty RAM. 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/