Hard Disk Drive Option Type P8 (M500-05) (SP 5300/5310 Only)
SM 2-105 D255/D256/M281/M282
Make sure to pass the cables through the hole [A] of the HDD bracket.
24. Install the HDD [A] on the controller box [B] with the tapping screws. (hook×2)
25. Reassemble the machine.
When reattaching the controller board [A] with the BiCU [B] on the controller box [C],
connect the two cables of the HDD to the controller board [A].