Unrelated to your BSOD issues, it sounds like you have 2 master boot records. You might wanna fix that.
As in one MBR on the M4 and one on the Samsung? I don't use the Samsung anymore, replaced it with the M4 and have just been using it to store obscure files I don't really need on a daily basis (even though there's still an old Windows 7 installation on it). I've been meaning to install Linux on it so I can dual boot, but I can't get any of the distro's to work since they all tell me that no usable HD was found to install under (another unrelated problem I've been having).