supernoob

Hey everyone, first post here and possibly really dumb one at that. I've just started getting my feet wet with an already existing installation of SCCM 2012 where I work. I'm still really new to all of this and I've been following the SCCM guides from here. I'm jumping around a little because SCCM is already up and going. Where I work we reimage machines using windows 7 enterprise that we pull down from a WDS server. You have to be at the machine and manually make it network boot and the machine will connect to WDS server. In part 7 of the guides for SCCM it says to enable PXE support for clients. Will that mess with our machines being able to connect to the WDS on pxe boot if I enable that option?