UpGraded Pc and now it wont boot

[KevFromNy]

Hello, I need some help. I recently upgraded some parts on my Desktop and now my PC wont boot. I didnt change everything But I did upgrade my motherboard to a ASUS A8N32-SLI Delux,my CPU to a AMD Athlon 64 and installed 2gb of Corsair memory , up from 1 Gb. When I hit the power button all the fans come on and everything gets power and lights ups but it will not boot and nothing comes on the monitor. I checked the monitor and it works. Now sometimes when I press the power button I get 3 beeps in a row, but not everytime so Im not sure what that means. I read in the motherboard manual that it is recommended that you use atleast a 500watt power suply and I have a 450 watt , so I upgraded to a 600watt now the problem I have with that is my DVD rom and DVD burner are not getting power for some reason. Can anyone give me any suggestions or help because Im totaly lost. Thanks

 

[borat_sagdiyev]

put in your old mobo, install the new mobo drivers, and then put the new one in

 

[KevFromNy]

Thanks, il give that a try tommorow