HP Pavilion p6000 - Desktop PC Guide

HP StorageWorks

Disk enclosure VRM replacement

instructions

This document details the procedures for replacing a

failed VRM (voltage regulator module) in an HP storage

enclosure.

First edition: June 2009

The information in this document is subject to change without notice.

Printed in the US

www.hp.com

*504218-001*

About this document

For the latest documentation, go to http://www.hp.com/support/

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 precautions when replacing a module.

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.

NOTE:

Information is also available on hood label.

NOTE:

Illustrations in this document may show modules or a chassis

that differ from your device. However, replacement procedures

are the same for all chassis that use this component.

The VRM is located inside the enclosure chassis.

Page 1

Verifying component failure

Analyze any failure messages received in the system logs.

Review HP fault monitoring software for provided recommended failure

information and recommended actions.

•Check the enclosure status LED (if VRM has failed it will be amber)

•Check the enclosure status LED.

•Green = Normal operation.

•Amber = Fault condition

•Off = Fan unseated from connector or failed.

Removing the VRM

1. Schedule a maintenance window.

2. Stop all I/O to the enclosure.

3. Power down the enclosure by pressing and holding the On/Standby

button on the rear of disk enclosure, until the system power LED

changes from green to amber.

4. Remove all cabling from the rear of the enclosure. Ensure all cabling

is marked to facilitate re-cabling later.

WARNING!

A disk enclosure fully populated is heavy. Prior to

removing the enclosure from the rack, remove each

disk and label it with its bay number. Place each disk

on a clean surface. If this is not possible, two people

are required to remove the enclosure from the rack to

prevent injury.

5. Remove hard drives from the enclosure.

WARNING!

When removing drives keep them in order. They will

need to be returned to the same slots they were

removed from at the time of replacement.

Press the release button on the drive lever (1), and rotate the lever

to the left (2). Then, pull out and remove the disk drive from the

drive bays (3).

6. Loosen the thumbscrews that secure the enclosure to the front of the

rack, and remove the enclosure from the rack.

7. Remove the top access cover.

a. Lift the access panel latch (1). The access panel will slightly

disengage from the enclosure.

b. Slide the access panel to the rear (2) and lift away from the

chassis.

NOTE:

A Torx tool with T-10 and T-15 ends is provided inside

the enclosure chassis, on top of the I/O module

housing.

8. Disengage the two power supplies from the internal connections to

the VRM by pressing the power supply mounting latch towards the

power supply and pulling the module slightly out of the enclosure

(2).

Page 2

9. Disconnect the VRM cables from the backplane.

10. Loosen the thumbscrew (T-15 may be needed) securing the VRM

(1) and then slide the VRM towards the center of the chassis and

lift up as indicated to release the VRM from the four guideposts (2).

11. Lift the VRM and its cables up and out of the chassis.

Installing the VRM

1. Thread the VRM cables through the opening in the chassis and then

align the replacement VRM on the guide posts on the bottom of the

chassis and top of the power supply cage.

2. Slide the VRM into position then push down to seat (1), tighten the

thumbscrew (T-15 may be needed) to secure the VRM (2).

Page 3

3. Connect the VRM cables to the backplane.

NOTE:

The cables are keyed and are different in size, to

prevent connecting to the wrong port.

4. Reinstall the two power supplies, making sure to push the module

into the enclosure until a click is detected when fully seated.

5. Secure the top access panel on the enclosure.

NOTE:

Place the torx tool back inside the enclosure chassis,

on top of the I/O module housing, for future use.

6. Reinstall the enclosure in the rack.

WARNING!

Reinstall drives in the same slot locations.

With the drive lever in the open position, reinsert drives fully into

each bay, pressing on the lever to secure each drive, remove any

labels added to mark the drives.

NOTE:

Reinstall drives in the same slot locations.

8. Reattach the cabling to the enclosure components.

9. Press the On/Standby button on the power UID bezel and hold it

down long enough to power up the enclosure. Wait for the enclosure

to complete the Power On Self Tests (POST).

10. Restart all servers with access to the disk enclosure, to ensure that

the storage is discovered properly.

Verifying proper operation

NOTE:

Wait three minutes after powering up the enclosure for the

system to check component status.

Verify the enclosures status LEDs as described in Verifying component

failure.

Returning the failed component

Follow instructions shipped with the replacement part.

Additional information

HP support: http://www.hp.com/support

HP support documentation: http://www.hp.com/support/manuals

Page 4

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