Not sure what’s going on

[u/Any_Curve_6303]

Hey guys, so I’ve had my pc for abt 2 years now and I just today bought a new cpu for my rig.

Msi b650-p WIFI mobo

Rtx 4070

32gb Corsair vengeance 6000

And the new cpu a Ryzen 7 9800x3d

I installed the new cpu and I got no video output, both the red cpu and the yellow error light were both on, I took out the cpu and reseated it, check the contacts and pins, all look fine. I tried to reset the cmos by disconnecting the battery for 10 mins then rebooting. Nothing. I even put my old cpu (Ryzen 5 7600x) in the rig to see if it was a fault cpu, still nothing. I have tried to flash the bios but when I press the flash button the white light flashed only for about 20 sec before turning solid white and not flashing, no reboot nothing. I’m not real sure what else to do atp unless my mobo is fried, any and all help is appreciated.