I'm building my first pc and I have two 4890's that I'm putting into it, do I build the pc and just put the first one in when I first boot up and install the OS and drivers and stuff and then put the second one or do I just go ahead and put them both in when I'm first building it, thanks for any help in advance.
my system specs:
MSI 790fx
x2 HIS 4890 turbo
phenom II x4 965
corsair 850 watt psu
4gb (2x2) mushkin
windows 7