Avago Technologies MegaRAID SCSI 320-0 (520-0 CH) - Manual (Page 40)

2-16 Hardware Installation
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Step 4. Press <ESC> and select YES to update the NVRAM.
Step 5. Exit and reboot.
2.6 After Installing the Storage Adapter
After Storage Adapter installation, you must configure the Storage
Adapter and install the operating system driver. The MegaRAID
Configuration Software User’s Guide instructs you on the configuration
options and how to set them on your Storage Adapter. The MegaRAID
Device Driver Installation User’s Guide provides detailed installation
instructions for operating system drivers.