Just installed new cpu and motherboard and it turns on just can't get any display or beeps? I've tried just using one ram stick but no help and tried with no gpu.
Unless you installed a case speaker their will be no beeps. You can try reinstalling the processor. Make sure the motherboard isn't shorting to the case. Try the motherboard video outputs with the graphics card removed.
Then if the speaker is working , you should be hearing at least some beeps. The motherboard may be defective. I would try bread-boarding the motherboard.