I found my motherboard info here:
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c01701270#N114
TDP: 95W
Motherboard supports the following processor upgrades:
NOTE : Only socket AM2+ processors are supported with this motherboard.
AMD Phenom II Quad-Core
AMD Phenom II...