I would also consider purchasing a system with libre firmware and
without ME/PSP such as:
POWER 9:
TALOS 2 (server/workstation, brand new and very high performance - the
only brand new hardware that is legitimately libre)
x86-64:
(older, pre-PSP AMD - the best CPU's for C32/G34 are equivilant to one
FX-8310 for the 8 core or almost two FX-8310 for the 16 core)
KGPE-D16 (server)
KCMA-D8 (workstation)
Lenovo G505S (laptop)
It is truly disturbing to think that someone with an ME exploit could
hack 80% of the computers on the planet.