Proxmox and HP RAID controller

I have tried a 256 cache board, 512 cache board, new battery cable, 4 different batteries, and they all say the sam ething, cache is disabled I

NOTE: For 4 addition HDs in 5-8 slots NOTE: OpticalDVD cannot be used with NOTE: Supported on HP Smart Array P212 Controller and HP Smart Array P410i

hpe 1600w flex slot platinum hot plug low halogen power supply kit Smart Array P212 in Slot 2 Controller Status: OK Cache Status: OK HP Inc ), Hewlett Packard Enterprise Company, or Micro Focus As of

hp cache status problem detected p212 in slot 5 The P212 is ideal for RAID 0, 1, 1+0, and can be upgraded with 256 MB Cache module for RAID 5, 5+0 and additionally with Battery Kit and Smart Array