Rackable scale outs

Hi, Guys

If anybody has any experience with Rackable Scale Out blades, please share.

http://www.rackable.com/products/scaleoutspecs.aspx?nid=servers_30

I have to get FBSD via pxe/tftp install, booting via pxe is no problem. 
Problem comes up with scale outs where COM2 is the console port and 
there is no way to change it.

thanks.
--Eddie