[SOLVED] Computer will not post, just got a replacement mobo HELP!!

[Kyriim]

I built my computer a few days ago, put everything in booted it up went to bios and changed my ram speed, from 2133 to 3200, then it wouldn’t boot, and the mobo wouldn’t reset with the cmos battery so I sent it in and got a replacement board, got it in today and I boot the pc on and it does the same thing will not post and the onboard speaker will not detect anything it just comes on for about 10 seconds all fans and lights then go right back off until I hold the power button and shut it off. Please anyone I’m begging for help

 

[Kyriim]

Probably cpu

Should I go ahead and send it back then while I’m sending the other back?

 

[boju]

Might as well and make sure.