if the video card is in the top pice slot then no it will not block the sata ports...the video card you are getting is only 2 slots wide....and the top sata port is three slots below the top pcie slot so you will not block any of your sata ports...even if you were blocking them you could still use them you just need a 90 degree angled sata cable
edit: so I just read the part where you only have the lower four...even better lol those are about another whole slot down
shoot! i linked the wrong version.. sorry..
i already corrected it..
mine only has one slot and the sata ports of my card are slightly higher than the one on the picture..
i'll try to take a picture of the motherboard later..
thanks again and sorry..