I've been trying for hours to get these new SAS drives installed on my poweredge 2950, the board clearly supports SAS but each time I go into raid manager it says SAS failed for each of the 4 drives I put in, I tried updating the bios but it said I already had the proper one installed. I used this update-https://dl.dell.com/SAS-RAID/FRMW_WIN_R169302.EXE

The page for that update suggests it allows SAS drives but it didn't work for me and its not allowing me to make them a global hs even, all of the options are greyed out.

please help and thank you in advance.