A client's computer has been blue-screening recently, once or twice a week. The computer had a USB male to VGA female adapter, which we thought might have had some impact, but shortly after replacing the video card and drivers, the computer blue screened again. We tried reinstalling all drivers for all component's from Dell's website, but we were still getting blue screens. We even replaced the memory with no change, as well as the antivirus software. Perhaps more baffling is that the minidumps seem to point to components of the OS, specifically ntoskrnl.exe and ntfs.sys. Other dumps point to random drivers. Very hard to get a handle on the exact cause here.
The system in question is a mid 2012 Dell Optiplex with:
4GB DDR3 1600 memory
Core i5-3470 @ 3.2GHz
Nvidia GeForce 210 Graphics card
Attached are the last five dump files.