How to replace an ODA CPU module

Asset ID:	1-71-2100764.1
Update Date:	2016-10-10
Keywords:

Solution Type Technical Instruction Sure

Solution 2100764.1 : How to replace an ODA CPU module

Applies to:

Oracle Database Appliance - Version All Versions and later
Information in this document applies to any platform.

Goal

Provide the steps for replacing a CPU module in the original version of the Oracle Database Appliance

Solution

For complete details of replacement procedures refer to the Oracle Database Appliance Service Manual http://docs.oracle.com/cd/E66274_01

TASK COMPLEXITY: 3

TIME ESTIMATE: 60 minutes

You must shut down the server node before you remove it from the system chassis. Be sure that the customer has properly shutdown all applications and has properly failed over to the other node.

To shut down a server node you can use the power button or use ILOM .

Power button:

Graceful shutdown: Press and release the recessed Power button on the lower left-hand corner of the server node's front panel

This causes Advanced Configuration and Power Interface (ACPI) to perform an orderly shutdown of the system.

ILOM

To shut down a server node using the Oracle ILOM,

Using the Oracle ILOM web interface:
Open a browser and enter the server node's service processor IP address in the browser's address field.
At the log in page, type a user name (the account must have Reset and Host Control (r) privileges) and password, and click the Log In button.

Go to Remote Power Control

Select Graceful Shutdown and Power Off from the Select Action list box and then click Save and OK.

The server node shuts down gracefully.

1. Prepare the server node for service.

a. Attach an antistatic wrist strap. See the manual for attaching wrist strap and use of ESD mats and bags.

b. Remove the server node from the system.

To unseat the server node from the system chassis, pull the two latches on the rear of the server node down.

The latches are marked by green tabs. Pull the latches down and away from the rear to the system.

Slide the server node to the rear and lift it out of the system.

c. Remove the server node top cover.

To unlatch the server node top cover, press and hold the green release button on the top of the server node cover.

Using the indented area near the green release button, slide the cover toward the front of the server node about 0.5 inches (12.7 mm).

Lift the cover up and remove it.

2. Remove the CPU.

a. Identify which CPU to remove.
To identify the location of the faulty CPU, press the Fault Remind button on the motherboard.

Note:
When the Fault Remind button is pressed, the Fault Remind Power Good indicator (LED) lights green to indicate that there is sufficient voltage present in the fault remind circuit to light the fault indicators. If this indicator fails to light when you press the Fault Remind button, the capacitor powering the fault remind circuit has lost its charge. This can happen if the Fault Remind button is pressed for a long time with fault indicators lit or if the server node has been out of the chassis for more then 15 minutes.

The fault LED for the faulty CPU lights. The fault LED is located next to the CPU. Viewing the server node from the front, CPU0 (P0) is on the right side of the server node.

b. Using a Phillips screwdriver, turn one captive screw on the heatsink counterclockwise two full turns, then turn the other screw two full turns, and keep alternating between the two screws until they are removed
c. Twist the heatsink slightly to break the grease seal, then lift it off and place it upside down on a flat surface to prevent the thermal grease from contaminating other components.
d. Using the wipes supplied with the replacement CPU, carefully clean the thermal grease from both the bottom of the heatsink and the top of the CPU.

e. Disengage the CPU release lever by pushing down and moving it to the side away from the CPU, and then rotating the lever upward.
f. Raise the pressure frame on the CPU to the open position.
g. Use your index finger to carefully lift up the edge of the CPU or protective cap that is farthest from the socket alignment slots , then firmly grasp both sides of the CPU or protective cap with your thumb and index finger on your other hand [4], and carefully lift the CPU or protective cap up and out of the socket

3. Install the CPU

Unpack the replacement CPU.

The CPU replacement kit includes a new CPU, wipes, and a tube of thermal grease..

a. Grasp the sides of the CPU firmly with your thumb and index finger, tilt it at a 45 degree angle, orient it with the socket alignment tabs.
b. Carefully lower the end of the CPU with the alignment tabs into the socket.
c. Support the raised end of the CPU with the index finger on your other hand, and lower the CPU into the socket .
d. Lower the pressure frame to the closed position.e.Ensure that the pressure frame sits flat around the periphery of the CPU.
f. Engage the release lever by rotating it downward and slipping it under the catch.g. Ensure that there is no debris on the top of the CPU die.
h. Use the syringe (supplied with the new or replacement CPU) to apply approximately 0.1 ml of thermal grease to the center of the top of the CPU. Do not distribute the grease.
j. Orient the heatsink so that the DIMM SIDE label on the top of the heatsink is facing the memory modules (DIMMs) and the two captive Phillips screws align with the mounting studs.
Each heatsink is labeled to indicate which side of the heatsink faces the memory modules (DIMMs) when the heatsink is properly oriented.
k. Tighten the two Phillips screws alternately two full turns at a time until the screws are fully seated.

4. Return the server node to operation

a. Install the air duct.
b. Install Server Node Top Cover.
c. Install the server node into the system
d. Power on the server node.

5. Clear the CPU faults.

Log in to the server node as root using the Oracle ILOM CLI.
To view server node faults, type the following command to list all known faults on the system:

-> show /SP/faultmgmt

Oracle ILOM lists all known faults, for example:

SP/faultmgmt
Targets:
0 (/SYS/MB/P0)
Properties:
Commands:
cd
show

To clear the fault, type the following command:

-> set /SYS/MB/Pn clear_fault_action=true

For example, to clear a fault on P0:

-> set /SYS/MB/P0 clear_fault_action=true
Are you sure you want to clear /SYS/MB/P0 (y/n)? y
Set 'clear_fault_action' to 'true'

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