Need help with system crash

[cheezehead]

I cant seem to figure this one out. I got a new m/b, cpu, and video card about a month ago, and Ive had a number of crashes since I got everything setup. I thought I had it resolved after installing the latest recommended drivers from the m/b and vid card manufacturer, but it still happens after a reboot from say, installing a new software, or applying windows updates. The second reboot seems to stabilize the system.
Attached are 2 zipped files of my minidumps that occurred today. I had to split them because of the file size limit in the forum.

I just found a problem with the embedded sound card, and Im trying to find out if its a hardware issue with the m/b (the microphone jack isnt working). I ran the mem test that is recommended and the ram passed 8 tests that I let it run through. I have plenty of fans that circulate the air around and the cpu seems to be well ventilated. Other than that, Im thinking either the video card, or something with the nforce drivers, or the sound card drivers or hardware on the m/b.

If anyone can point me to what the heck is crashing my system, that would be awesome.

thanks in advance!

Also, here's what shows up in the event viewer.
Event 1003
Error code 100000d1, parameter1 00000081, parameter2 00000002, parameter3 00000000, parameter4 8678a888.

Error code 100000d1, parameter1 00000081, parameter2 00000002, parameter3 00000000, parameter4 867d7628.

Error code 100000d1, parameter1 00000081, parameter2 00000002, parameter3 00000000, parameter4 867c5888.

Error code 100000d1, parameter1 00000081, parameter2 00000002, parameter3 00000000, parameter4 8678a888.

 

[fastco]

Crashes are all caused by ntkrpamp.exe which could point to memory corruption but could be as simple as a recently installed program. Like you said it could be video drivers as well. Try DriverCleaner http://www.drivercleaner.net/professional.php run it in safe mode to remove the old video drivers then reinstall the latest ones. Also if you have more than one stick of memory try removing one and letting the computer run to see if there is a bad memory module. Some bad memory still passes those memory tests.