Debugging :: System Crash Within First Few Minutes Of Logging In - No Minidump Folder

I've had 22 crashes since 3/19/2014 according to the event viewer. All of these have had the generic Event ID 41 for an unexpected shut down. They've been occurring daily, and I can almost guarantee that I'll get a crash within 5 minutes of turning on my computer and logging in. Once that first crash occurs, I can use my computer normally until I shut it down and then it'll happen again the next day.

These crashes usually occur within the first few minutes of logging in after a clean shutdown; however, they have also occurred at random intervals afterwards. I am not always doing anything intensive while it happens.

These crashes show no BSOD. The screens turn black and the power restarts, almost as if the power was cut and then started back up. I unfortunately do not have a spare PSU to determine if that's the root cause.

I've installed no new hardware into my computer recently, and no software at the time when this started. The only notable thing is that I setup a new router: TP-LINK TL-WDR3600.

There are no drivers on the TP-LINK webiste: TL-WDR3600 - Welcome to TP-LINK. I've let windows handle that. Yesterday I did install the USB print controller utility (there is currently no printer attached to the router), but I had a crash this morning.

I've checked my Windows folder for any dump files, and there's a memory.dmp from 11/25/13 (unrelated), and no Minidump folder.

I've attached the SF diagnostic zip.