Windows 7: Blue screen, but not a BSOD

Hello everyone. I just built a computer for my Mom to do work from home. Everything was going smoothly until I got this random blue screen. It is not a BSOD as there is no writing on the screen nor does the computer crash really. It just kind of hangs at this blue screen. I don't have to be doing anything and then this problem happens. I could just be on the internet and then I get the blue screen. Now I can make it happen 100% when I tap the side of the tower. It is nothing too vicious, just a little tap with my fingers and then boom blue screen. Does anyone have any ideas about what this could be?

PS. Here are the specs of the computer:
Windows 7 64-bit
MSI 990FXA-GD65 AMD 990FX Socket AM3+ Motherboard
AMD FX-8120 X8 3100MHZ 16MB 125W AM3+
Samsung Internal SATA 22X DVDRW Black W/O Software
Patriot Gamer 2 4GB DDR3 PC10666 1333MHz (x2)
OCZ TECHNOLOGY 120GB VERTEX PLUS SSD
Ultra LSP750 750w Power Supply
Corsair Carbide Series 400R Mid-Tower Gaming Case



Thank you, Availabear

Just for verification
is there anything located in the folder c:\windows\minidump ?
If there is could you zip them up and attach to your next post.

Hi.

"""Now I can make it happen 100% when I tap the side of the tower. It is nothing too vicious, just a little tap with my fingers and then boom blue screen."""

This looks like a loose hardware.

Open the case and very careful check all the hardwares,wires,connectors,screws,

psu connections,cpu,gpu,ram,check if everything is sitting tight in the slots,check everything.

last time I had a problem that any tiny tap could recreate it was a bad memory slot on the motherboard.
That resulted in this post.
Complete System halt

As said above it's either loose hardware, or even possibly a component grounding out on the case and you are completing a weak circuit by touching it.