Error Message at startup after i switched my pc case.

[XyaMorph]

Hey.

 

I recently decided to switch my pc case and so i switched from my Corsair Obsidian 650D to a NZXT S340 Razer edition. 

What is strange though is that i now, after switching my case, recieve a message like this on startup "Reboot and select proper boot device or insert boot media in selected boot device and press a key". 

After rebooting and selecting my boot device, my trustworthy SSD, the pc starts like normal and there are no further errors. The message above however, tends to reappear at every single starup even though i have configured my boot priorities in the BIOS. 

 

I'd be truly greatful if someone where to help me out. 

 

My Specs: 

 

MOTHERBOARD: MSI Z87-G45 Gaming

PSU: Corsair CX600M

CPU: Intel Core i5-4670K

GPU: MSI GeForce GTX 780

HDD: WD Desktop Green 1TB

SSD: Crucial M500 120GB

RAM: Crucial DDR3 BallistiX Sport 1600MHz 8GB

COOLER: Corsair H60 Hydro Series

 

 

[zlolslavez]

try turning off your computer, remove all drives except ssd, boot, shut down and plug everything back in.

[Sors]

Have you look in the bios for what drive is selected as primary boot?  you may have switch the positions of the drives when unplugging and plugging them back.