Hey I cant find information, that makes me feel sure on buying some new RAM, if it would be compatiable.

So I have two question here. First off, the motherboard I have im asuming has a PCI card slot. I would like a double check on that. It is a XEON server motherbaord.
I have this motherboard - http://www.supermicro.com/products/motherboard/Xeon/E7500/P4DME-M.cfm

At this link is says it has a PCI express Slot.
My motherboard does have a huge brown slot. I am honestly not aware, if brown slot always = video card or what.
http://www.dealtime.co.uk/xPF-SuperMicro-SUPER-P4-DME-M

QUESTION - Is this RAM compatiable with Motherbaord im using http://shop2.outpost.com/product/4416996

Its 184-PIN DIMM and that is what is in the computer, is that all that needs to match?

Thanks for reading. I just dont wanan buy without getting some positive input.