HP 4400 Assembly Replacement Instructions

HP Controller Enclosure Riser
Assembly Replacement
Instructions
© Copyright 2009 Hewlett-Packard Development Company, L.P.
Second edition: May 2011
The information in this document is subject to change without notice.
Printed in Puerto Rico
www.hp.com
*593097-001*

About this document

For the latest documentation, go to
manuals, and select your product.
The information contained herein is subject to change without notice.
The only warranties for HP products and services are set forth in the
express warranty statements accompanying such products and services.
Nothing herein should be construed as constituting an additional
warranty. HP shall not be liable for technical or editorial errors or
omissions contained herein.
WARRANTY STATEMENT:
To obtain a copy of the warranty for this product, see the warranty
information website:
http://www.hp.com/go/storagewarranty

Before you begin

Observe the following precaution when replacing the riser assembly.
CAUTION:
Parts can be damaged by electrostatic discharge. Use proper
anti-static protection. Refer to the documentation that shipped
with your system for additional information.
Your controller enclosure model may vary slightly from what is illustrated
in this document.

Verifying component failure

Use the following method to verify component failure:
Check to see if there is power to the management module or power UID.
If the amber LEDs on the management module or power UID indicate a
failure, the riser assembly may have failed.
NOTE:
An indicated failure of the management module can also be
an indication of failure of the power supply or midplane board.
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