HELP with DFI Ultra Infinity and AM XP 2500 not posting

Archived from groups: alt.comp.hardware.pc-homebuilt (More info?)

hi i recently purchased a DFI Ultra Infinity motherboard but i can't get my
AMD XP 2500 to post. My AMD XP1500 will post on it but not my 2500. Could it
be that i have a bad cpu? This was a cpu given to me so im not 100% sure
that it isn't dead. When i turn on the system i just get a blank screen. No
beeps or anything. All fans are running and the led's on the board light up
but thats about it. Is there a way of checking for sure that the cpu is bad
and not something with the mother board not recognizing it? thanks.Here is
my specs:

DFI Ultra Infinity Rev. A+
AMD XP 2500 (Barton)
GeForce4 ti4800
128mb DDR pc2100 Crucial
128mb DDR pc2100 generic
2 Maxtor 40 gig's
550w PSU