Hi,
 
I just bought the C2D E8400 CPU and updatet my BIOS to v2.5 (which should work with this CPU).
 
My system hangs as soon as I power it on. Black Screen, all drive-leds are on and nothing happens.
 
Do you have any ideas what could be the problem. Broken CPU?
 
Thanks and Regards
wiesi

I got the same problem and after short search, seems like there are some other people also having the same situation.

When I first built my rig a couple years back, the same thing happened, turned out to be a dodgy stick of RAM. If you have 2 sticks, you could try using them one at a time, swapping them round, shifting them to different DIMM sockets, or if you have spare RAM lying around you could try using that?