bobmitchBefore you install the processor on the new board...look very closely at it. Make sure the substrate isn't cracked or chipped. If everything looks good...then install in the new board. Good luck and keep us posted. Also make sure that you have two CPU cables attached to the board and that you are not under powering the CPU.
vinhusIt seems the CPU defected, i bought 10980xe in the last 2 months ( buy on eBay for ~ $1500 included tax+shiping), installed on my X299 Dark after 2 weeks it won't power on anymore., i could not read the postcode because no power, only site show is all LEDs on the motherboard are keep flashing every time i press the power button. I thought the board or its bios corrupted. I ordered a new X299 Dark and the issue still exist the same. Luckily the store i purchased help to RMA to Intel, after Intel tested they ok to send me a replacement. It took me a month to get the replacement. I'm not a pc expert but have been built intel pc since the 3rd intel gen. I was wondering why recently the top/special intel chip easy to die, and hard to buy as usual ?! :(. But anyway i hope your case is not the CPU :).
mhall29Additional update! Pulled the trigger on an i7-9800X temporarily, until I get the 10980XE RMA back in mid October. I'll post Friday if I can get the system up and running :)