Sorry for the delay, but there aren't many people who do BSOD analysis.
The BCCode: C4 error is a report of a BSOD while you were running Driver Verifier.
Seatools test is good enough, no need to run others at this point.
The test doesn't take 24 hours. The only tests that I suggest that take 24 hours is Prime95.
I suggest that you run Driver Verifier for 36 hours, and that you run MemTest overnight.
But, let's start with the things you've uploaded already, and we'll move on from there.
There are no memory dumps in the uploaded reports. Please do this:
Upload Dump Files:
NOTE: If using a disk cleaning utility, please stop using it while we are troubleshooting your issues.
Please go to C:\Windows\Minidump and zip up the contents of the folder. Then upload/attach the .zip file with your next post.
Left click on the first minidump file.
Hold down the "Shift" key and left click on the last minidump file.
Right click on the blue highlighted area and select "Send to"
Select "Compressed (zipped) folder" and note where the folder is saved.
Upload that .zip file with your next post.
If you have issues with "Access Denied" errors, try copying the files to your desktop and zipping them up from there. If it still won't let you zip them up, post back for further advice.
If you don't have anything in that folder, please check in C:\Windows for a file named MEMORY.DMP. If you find it, zip it up and upload it to a free file hosting service. Then post the link to it in your topic so that we can download it.
Also, search your entire hard drive for files ending in .dmp, .mdmp, and .hdmp. Zip up any that you find and upload them with your next post.
Then, follow the directions here to set your system for Minidumps (much smaller than the MEMORY.DMP file): http://www.carrona.org/setmini.html
More info on dump file options here: http://support.microsoft.com/kb/254649
This device is disabled in Device Manager. Is this deliberate? If so, why did you disable it?
facap, FastAccess Video Capture ROOT\IMAGE\0000 This device is disabled.
Regardless of why it's disabled, please enable it and update the drivers associated with it (should be available from the Dell website).
After it's updated you can feel free to disable it again if it's not needed.
The only memory dump listed in the WER section of MSINFO32 dates from January of 2014 - this is likely not significant to the problem that you're experiencing now. (it relates to a webcam driver).
There are no memory dumps listed in the KernelDumpList.txt report either.
If the above suggestions about dump files don't help to capture memory dumps - then we'll have to pursue a different course.
One option is having you deliberately cause a BSOD using Driver Verifier - and then read the information on the BSOD (here's an annotated copy of what to look for: http://www.carrona.org/bsodimg.html )
The system must be set to stop on error in order to let the BSOD show for long enough so that you can read it. No need to do this right now, but if you do, post back for instructions on how to enable "stop on error".
There's not much else in the reports. As such I'd think that the problem was most likely hardware/compatibility/low-level driver caused.
Start with the free hardware diagnostics: http://www.carrona.org/hwdiag.html