4.Replacement and Adjustment
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5. Remove the controller board [A] from the BiCU [B].
6. Remove the two guide rails [A] from the controller board [B].
7. Remove the NVRAM [A] from the old controller board and install them on the new controller board.
• Make sure the NVRAM [A] is installed at the correct mounting location and orientation. Install
the NVRAM so that the indentation on the NVRAM corresponds with the mark [B] on the
controller board.
• Incorrect installation of the NVRAM will damage both the controller board and NVRAM.
NVRAM on the controller board (PCB15)
• SC195 (Machine serial number error) will be displayed if you forget to install the NVRAM.
• If you install the NVRAM in the incorrect direction, it will cause a short circuit in the controller
board and the NVRAM, and each component will need to be replaced.
• Installing a new NVRAM initializes SPs and issues an SC. Reset the SC with the procedure
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