Quote Originally Posted by Leeghoofd View Post
I would just pop in the 1900XT and keep the 280 in ya hand ( not inserted in any slot,nor PSU )... hope she starts then
Found the problem.
As you suggested, it's the videocard.
Popped in the X1900XT and it booted up normally.

Don't know what I might have done wrong, I'm usually very careful when installing a WC block, it never happened to me before.
Gonna remove the waterblock later on today and make a closer inspection on the card.
If it's still broke, to bad. Those 260GTX/216 (65nm) don't cost that much anymore.

Thanks for the help anyway.