Mephistopheles
Discoverer
I just bought a Sapphire HD6870 and got home, as the GPU was quite big for my cabinet so I had to reaarrange my HDDs. I installed my GPu and turned the PC on but it wont boot. 
On the monitor I can only see the T-series logo , the Del key for Setup doesnt work.Its pretty much stuck and I cant do anything. I tried switching my HDD cables, RAMs btu nothing seems to work.
What could be the problem here?

On the monitor I can only see the T-series logo , the Del key for Setup doesnt work.Its pretty much stuck and I cant do anything. I tried switching my HDD cables, RAMs btu nothing seems to work.
What could be the problem here?