Can you try the GTX570 in another machine? can you beg/borrow steal another card to try in this PC? I think you can see where this is going.
Maybe, but I think its not that.
Thats what im thinking.
I have just this second put 280.26 on this PC and it got to the desktop after a restart, same card too (palit)
All this trouble over a bit of dust
Happy its all working now though.
You just now need to sort the wiring out, make it nice and neat, pass the cables through the rear of the case and then bring them through the cut outs along the side of the motherboard.
Also the PSU should be facing downwards as there are vents under it, if the case is on carpet? then leave the PSU as it is.
Cool, just get the wiring going out the rear of the case, then bring the cables back through the holes in the metal where they need to be.
The 8pin connector near the CPU for example, there is a cut out at the top of the motherboard for this cable to come through.
Congrats on getting it working mate! You must be relieved!
Must admit the Tranquillo looks a lot nicer in the case than in product pics!