# Changing BIOS-compatibility mapping

Notes:
  1. This action is supported in bootable-CD mode only.
  2. This action is not supported on the integrated RAID controller.

Use this action to change BIOS-compatibility mapping. Extended indicates 8 GB Extended; Limited indicates 2 GB Limited.

The ServeRAID controller allows the migration of drives from the PCI RAID Adapter or Streaming RAID Adapter/A configurations. Using "Change BIOS-compatibility mapping," you can set your ServeRAID controller to be compatible with these older drive configurations by selecting either 2 GB or 8 GB mapping. The default is 8 GB.

1. In the Enterprise view, click (controller).
2. Right-click Change BIOS-compatibility mapping either Extended or Limited.
3. Click Yes to confirm the setting.

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