Keyboard Mouse Display not working with Pseries

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http://www.unix.com – Hello, Just got a refurbished Pseries when I boot the machine , everything is okay, that is no attention light and panel shows 01 B N but there is nothing on the display ( monitor / console ) which is plugged into the video card port of pseries. The display is empty.... The keyboard doesn't work ie., if it press NUM Lock or CAPS Lock, no lights come up, and the optical mouse also doesn't work ( no light in the mouse ) How can I troubleshoot this issue ? ---------- Post updated at 12:52 PM ---------- Previous update was at 05:32 AM ---------- Apparently looks like HMC issue. (HowTos)