i saw in another post that 4tb drives aren’t supported in the HP z820.
I have installed many WD -red drives in z820 as secondary, third adn 4th drives. no problem.
Now i an tryign to use the 4TB enterprise as a primary drive. (possibly RAIDed) windows doesn’t see the drive when i try to install it. none of the RAID/LSI sas driveres work either.
this is to be a dual boot system, but at first they wanted just Linux. Linux saw the raid and installed no problem.