PCI-X Raid Cards in PCI slots?

[bashywash]

I'm looking in getting HighPoint RocketRAID 1820A Car, Currently the Server has ECS P4M800PRO-M with 3 PCI slots. The Raid Card is a PCI-X (NOT Express) Can I use this Card with the current MB?

 

[FilmCamera]

It depends on the card. The PCI-X cards will fit into a standard PCI slot usually but if they are compatible with older PCI slots then you just won't get the extra bandwidth that PCI-X provides. Not all cards are backwards compatible like that though.