Absic is absolutely right and it is a very easy trap to fall into.
Sorry, I accidentally removed my post regarding this and what DM refers to is:
The Revision 2.0 version of your motherboard will accept the Athlon ii X3 445 CPU whereas your revision number 1.0 doesn't. It is an easy mistake to make, when looking for compatible CPU's to look at the wrong revision number and is something that other users should be aware of.
The problem is, as Dark Mantis stated, that you have probably screwed up your Motherboard by trying to run an unsupported CPU.
The only suggestion that I can offer would be to try and clear CMOS and BIOS again making sure that you have removed the power lead from the mains supply. Also remove the CMOS battery and leave it out for several minutes before you clear CMOS with the jumper. Put your old CPU back in and then try to re-boot. If that fails then I'm afraid your Mobo has probably died and gone to a better place.