[nffc]

It's a POST issue, either it's not set up right, the Mobo is DOA, or something is preventing it.

Remove ALL expansion cards and leave just the PC speaker, power switch and the MB power connections connected to either the PSU and MB. Just the CPU, RAM and power as well as the HSF which will be connected if it powers. Then try again.

Hopefully then the speaker will give out some nice beep sounds. If not pull the RAM again and try again.

If it's still not POSTing the MB is likely dead. Though it could also be the CPU that is less likely.