OK so my system has been on water for a while and i am waiting for a new shuttle to come so i needed to remove the water system and put it back on air seems easy but oh no. 
turned on the PC after removing the water block from the CPU and GPX and now i can't get any picture i have removed it a few times now and i have just tried a different card and still no picture so dose anyone have any ideas
also why i am here now would i be better to sell the PC as one or break it up and sell the parts separately and what would it be worth anyway?
they are...
Asus A8V deluxe
AMD X2 4400+
4Gb of Pc 3200 in 1Gb sticks
256mb XFX 6800GT
Corsair Hx 520
Cooler Master case

turned on the PC after removing the water block from the CPU and GPX and now i can't get any picture i have removed it a few times now and i have just tried a different card and still no picture so dose anyone have any ideas

also why i am here now would i be better to sell the PC as one or break it up and sell the parts separately and what would it be worth anyway?
they are...
Asus A8V deluxe
AMD X2 4400+
4Gb of Pc 3200 in 1Gb sticks
256mb XFX 6800GT
Corsair Hx 520
Cooler Master case
but all the pins are OK so i will get a new lead tomorrow and see if that works and to think i removed that card 7-8 times today