BSoD

[Morc]

Windows 7 Ultimate Edition
...
Computer randomly shuts down.

Problem signature
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033

Extra information about the problem
BCCode: 50
BCP1: FFFFF88003B30000
BCP2: 0000000000000001
BCP3: FFFFF88011E7D1CE
BCP4: 0000000000000000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1
Bucket ID: X64_0x50_nvlddmkm!CEvoPushBuffer:ushCmdDat+12
Server information: 024b4cc7-6eed-4680-860d-d46775fcfde1

 

[Jonathan_King]

Please follow these directions: http://www.sevenforums.com/crashes-debugging/96879-blue-screen-death-bsod-posting-instructions.html

 

[Morc]

BSoD INFO Attachments...

 

[yowanvista]

All dumps blame nvlddmkm.sys, part of the Nvidia drivers

Causes:bad RAM, incorrect RAM timings/voltages, bad GPU, overheating

Uninstall the Nvidia drivers then use driver sweeper to remove the leftover Nvidia files
Guru3D - Driver Sweeper

Then reiunstall the Nvidia drivers:
NVIDIA DRIVERS 258.96 WHQL

If this does not work test the graphics card in another PC

This was likely caused by the following module: nvlddmkm.sys
Bugcheck code: 0x50 (0xFFFFF88003DF0000, 0x1, 0xFFFFF88011E981CE, 0x0)
Error: PAGE_FAULT_IN_NONPAGED_AREA

 

[Jonathan_King]

The dumps seem to blame your nVidia graphics drivers.

Try removing your current ones, in Programs and Features. Then install these ones: NVIDIA DRIVERS 258.96 WHQL

They are a bit newer than your current ones.

Test your GPU temps: SpeedFan - Access temperature sensor in your computer

Also, run Furmark: http://www.sevenforums.com/tutorials/100356-video-card-stress-test-furmark.html

See if that helps.

...Summary of the Dumps:

[font=lucida console]
Built by: 7600.16617.amd64fre.win7_gdr.100618-1621
Debug session time: Sat Oct 16 01:08:44.371 2010 (UTC - 4:00)
System Uptime: 0 days 3:27:51.792
BugCheck 50, {fffff88003df0000, 1, fffff88011e981ce, 0}
*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys
Probably caused by : nvlddmkm.sys ( nvlddmkm+751ce )
BUGCHECK_STR:  0x50
PROCESS_NAME:  csrss.exe
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
Built by: 7600.16617.amd64fre.win7_gdr.100618-1621
Debug session time: Fri Oct 15 17:21:27.762 2010 (UTC - 4:00)
System Uptime: 0 days 4:27:03.432
BugCheck 50, {fffff88003b30000, 1, fffff88011e7d1ce, 0}
*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys
Probably caused by : nvlddmkm.sys ( nvlddmkm+751ce )
BUGCHECK_STR:  0x50
PROCESS_NAME:  csrss.exe
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
[/font]

 

[madtownidiot]

Or reinstall windows and load drivers during the install using the method I suggested here.
windows 7 doesn't correctly install some drivers if you wait til after the install is finished