Asus PCI-DA2100 User Manual page 253

IMPORTANT:
Allow the downloading process to finish. Do not reset or turn off the
computer or the controller while it is downloading the file. Doing so
may result in an unrecoverable error that requires the service of the
manufacturer.
While the firmware is new, the boot record that comes with it may be
the same version as the one in the controller. If this is the case, there
is no need to upgrade the Boot Record Binary.
Upgrading the firmware using In-band SCSI + GUI RAID
Manager
The In-band SCSI connection and the ability to upgrade
the firmware via In-band SCSI are supported in ASUS GUI
RAID Manager, version 1.61B and later versions. This
version of the GUI RAID Manager is for use with the
firmware 2.11. If the firmware currently in the controller is
earlier than 2.11, In-band SCSI is not supported.
Establish the In-band SCSI connection in GUI RAID Manager
Please refer to section 4.10.3 for details on establishing the
In-band SCSI connection in GUI RAID Manager.
2.5 Upgrading Firmware
ASUS GUI RAID Manager: Installation
2-27