A-Class Server Cache Memory Removal and Replacement

Overview

This section provides step-by-step instructions for removing and replacing Cache Memory boards in the A-Class Server. In addition, instructions are included for changing product identification number labels if more Cache Memory is ordered for installation.The following subsections apply:




	CAUTION: The procedures in this section require opening the server and exposing the system to electrostatic discharge. Always observe all electrostatic precautions when working with components inside or out of the server. Failure to follow these precautions may result in component damage or loss of system reliability.

Electrostatic Discharge Precautions

Use a grounding mat and an anti-static wrist strap.
Wear the anti-static wrist strap to ensure that any accumulated electrostatic charge is discharged from your body to ground.

Before You Do Anything...

Perform system backup.
Shut down the operating system.
Power down the system.
Unplug the server.
NOTE: Cabinet-mounted servers must be removed from the cabinet before proceeding.
Remove the top of the server by unscrewing the knurled captive screws on each side of the rear of the server. Slide the top back, lift it off, and set it aside.

Cache Memory Removal




	CAUTION: Always handle Cache Memory boards by their edges. Failure to comply with this precaution may result in damage to the board.

Open the ejector levers (down position) on each side of the Cache Memory board.
Grasp the Cache Memory by the edges and lift straight up
Set it carefully on the grounding mat.

Cache Memory Replacement




	CAUTION: Keep Cache Memory boards in their protective anti-static bags until you are ready to install them. Always handle Cache Memory boards by their edges after you have removed them from their protective anti-static bags. Be sure that an anti-static wrist strap is still attached to your wrist and grounded to the server main chassis when you handle and install Cache Memory boards. Failure to follow these precautions may cause damage to the Cache Memory.




	NOTE: There is no order of precedence for installing Cache Memory boards. The two boards may be installed in any order and do not have to be replaced in pairs if the defective board can be isolated. Otherwise, replace the pair of boards.A-Class servers can only use Cache Memory SIMMs with part number A5182-60002. Using Cache Memory SIMMs with any other part number may result in the server failing it's selftest.

Cache Memory board replacement procedures are described as follows:

Open the ejector levers (down position).
Note the two key notches on the Cache Memory board. One key notch is in the center and one is toward the side. Orient the board so that the side key notch is toward the server front, matching the keys in the connector.
Align the board notches with the connector keys, fit the bottom sides of the board into the ejector lever slots, and insert the board into the connector.
Push the Cache memory board firmly and evenly into the connector until it clicks into place. The ejector levers will automatically close.

Cache Memory Labels

If cache memory is ordered as an upgrade to the base product, two product identification numbers must be changed. Locate the sheet that contains the new labels and affix them according to the following procedure:

Peel the Product number label from the sheet and place it over the corresponding label on the rear of the server.
Peel the Model number label (includes the HP logo) from the sheet and place it over the corresponding label on the rear of the server.