Windows keep crashing.

[blackburn680]

Hi.
Every now and then my windows grinds to a halt. Stuck on whatever is open at the time. I can move the mouse so I guess it is not a crash as such. When I force restart my pc a blue window pops up saying boot device not found. I can temporally solve this by changing the sata cables around and then changing order of boot in the bios. My os is on a samsung 840 evo ssd. And my mobo is a gigabyte GA-Z87-D3HP. I ran disk check and there were no errors at the time of event strangely enough. I am guessing the ssd or mobo might be dieing. If anyone has any insight or ideas that would be great.

I have searched for this problem but either I am not searching correctly or something but I can not find much.

 

[Colif]

See if you have latest firmware on Evo by running samsung magician, use it to check smart scores as well
make sure you have latest motherboard chipset/sata drivers & maybe update bios

try running the free version of http://www.memtest86.com/ on your ram, 1 stick at a time. any errors means stick needs to be replaced.