Computer crashing weirdly

[Deleted]

Im not sure if this is related. But this kind of started after setting up Eyefinity.
Sometimes when playing a game or loading a level. My PC crashes to post without any error message or anything. Im guessing this is some HDD problem.
Somehow my main HDD is getting disconnected ? Cause sometimes i try to CTRL alt del when my game freezes. And all i get are error windows about how the system could not load the task manager. prompting me to either press ESC or turn off my PC through the power button.... and how explorer exe and windows are not responding.
Even from rainmeter i can quickly see that the capacity of my C: drive is 0gb/0gb...
So its getting disconnected..? But still when the PC reboots after crashing it loads windows and works again for a while.

Im running 3 monitors. all 22" at 1680x1050
Middle (Main) one with VGA to mini DP adapter --> 6870
Left and right from DVI to DVI --> 6870

Nothing is overheating...
But i might make a guess that my HDD SATA cable is coming loose......... Cause... Gotta get a new case.... ... But then why would the computer load windows again after crashing if the cable was not connected?
http://i.imgur.com/oJ69a.jpg?1

GPU kind of blocking my main and storage HDD

[Shadowsz]

well it's hard to say anything without more information, so please try and get your hand on another SATA cable & update this thread please

[Evil Inside]

Restart your computer and spam F8 until the options screen comes up, scroll down to "disable automatic restart on error" or something to that effect. Next time the pc crashes it'll display the error on the screen, from there just write it down and come back here or google it.

[Deleted]

Yeah ill try getting an erorr message.

But

well it's hard to say anything without more information, so please try and get your hand on another SATA cable & update this thread please

If you checked my pic you can see thats its pretty hard to squeeze a sata cable there due to a small case.. And its almost impossible to avoid 90* turns on the cable
Both sata cables are behind the GPU and in the 90 degree rotated connectors..

But long before this problem occured my storage HDD was sometimes somehow disconnected (Not physically loose from the connector.. but just somehow) over the night when my computers been off.. and always before starting my PC i had to move the cable around to get my storage HDD to show up.