stuck at american Megatrens

[Kim_43]

ANTIBIOS (C) 2006 American Megatrends Inc.
G31t - M release 04/13/2009
CPU : INTEL(R) Core(TM) 2 Duo CPU E7500 e 2.93GHz
Press Del to run setup
press F11 for BBS POPUP
The MCH is operating with DDR2 000/Cl6/Tras1B/Trp6/Trcd6
Single channel Mode
2048mb OK

How to fix! please

 

[Petrossa]

Is there an error being generated?

Try powering off and re-seating all connections (power, RAM, etc). Unplug all drives and see if the system boots. If it does, plug each drive in one by one till system hangs again. That drive then is the cause of your issue.
Try the other RAM slot too.