Still under warranty ?

It is still under warranty and we had a Dell guy came out but it did not fix the problem.

Personal opinion,

I would insist with prosupport... if it's a bios glitch, there would be more people reporting it, but I don't remember seeing a similar topic here.

So is more likely that it's an issue on the motherboard. I assume that the connector on the mb for the 2nd cpu cage has a plastic protection on it ( since it was never used ) to protect it from dust and particles, so that no weird fake contact happens there.

Bottom line, I would call them again, have their tech used canned air or whatever he prefers to dust off the connector while having a new motherboard to swap in, if the previous doesn't work.

"if" you get a replacement board, and your precision is a first generation, try to get a 2nd generation board maybe ( so you have the upgrade path to 2nd gen cpus open )

Hi I'm a Dell warranty support technician.

I was Got same issue.(Precision 7820)

I have Updated Bios latest virsion.issue resolved.

I have the same issue exactly in T7820 and i update the Bios latest version and it's under monitoring