guys, I'm suddenly facing a problem with my PC connected to my Samsung LCD LA40C530.

Previously I just plug in and it just work. Can see boot up right away.

But now, after change HDMI cable, it cannot work eventhough I change back to the old cable.

Some hints:
a) before this happen, my PC connect to a same place as a fan which the plug caught fire. I scared the current flow through and burn the HDMI post but I seriously doubt it because my PC is not turned on during that time but the HDMI post connected to my LCD. If my LCD HDMI port still working, why my PC port died?

b) software problem. But I doubt it because it supposed to see the boot up screen right?

So I need anyone help whether my HDMI port died or not. By the way, DVI works. Sending to warranty maybe can but my warranty card Sapphire 5850 maybe missing. LOL