Recently installed SME6.0.1-01 on an 1850R with no probs. System used Compaq SCSI RAID which was found automatically.
Make a point of creating the bootdisk on load just in case but I don't recall any probs with this model.
I have also installed SME on DL380 G1, ML350 G1, ML370 G3 all multiprocessor with Compaq SCSI RAID.
HTH