Heatsinks and processors are field-replaceable units (FRUs) and must be serviced by an Oracle Service person.
This procedure uses the CPU fault remind test circuit. The circuit is a charged, time-limited circuit. Once power is removed from the server, you have 10 minutes to use the circuit.
Before You Begin
For component serviceability, locations, and designations, see About System Components.
Obtain a Phillips screwdriver and an anti-static wrist strap.
This procedure requires the use of the CPU Replacement tool (part number: 7080240). A tool is shipped with replacement CPUs.
For servers equipped with SW 1.0 and with versions of Oracle ILOM older than 220.127.116.11, use cold service. See Prepare the Server for Cold Service.
For servers equipped with SW 1.1 and with Oracle ILOM 18.104.22.168 or newer, use cold service or warm service. For warm service, see Prepare the Server for Warm Service.
Caution - Component damage. CMOD components are extremely sensitive to electrostatic discharge. Wear a wrist strap and use an anti-static wrist mat.
You can verify the processor that has failed, by pressing the Fault Remind button and checking to see if the CPU fault indicator turns on. The button and indicator are part of the CMOD Fault Remind test circuit. The test circuit is powered by a time-limited charge. The charge allows you to use the circuit after the CMOD has been removed from the server. You must use the charge within 10 minutes of removing the CMOD from its power source; otherwise charge on the circuit dissipates, and the circuit becomes unusable. The circuit also has an indicator that allows you to verify the status of the charge.
In the following illustration, call out 1 shows the Fault Remind button, call out 2 shows the Charge Status indicator, and call out 3 shows the CPU fault indicator.
For more information about the CMOD components, see CMOD Layout.
The green indicator is located next to the button, and it lights if the circuit is operational.
The amber indicator is located next to the CPU and heatsink.
A thermal compound that has been applied to the top of the CPU to facilitate the transfer of heat to the heatsink also acts as an adhesive.
The twisting action helps to break the seal created by the thermal compound.
A residual amount of compound remains on the bottom of the heatsink and on the top of the CPU. This compound must be removed before using the CPU replacement tool. An alcohol wipe is included with the replacement CPU.
The levers are numbered by their required order of operation.
When the second lever is in its fully-open position, the load plate is unlocked and can be opened.
Caution - Component damage. The pins of the CPU socket can be easily damaged. Do not remove the CPU using your fingers. To remove the CPU, use the CPU replacement tool.
The tool is used to remove and install the CPU in the socket. The top side of the replacement tool has a button in the center and a tab on one side. Pressing down on the button opens the tool. Pressing the tab closes the tool (and releases the button).
This action opens the tool.
On one corner of the tool, there is a label with a downward pointing triangle. Likewise, the CPU is marked with a triangle on one of its corners. This is a key that aids in correctly positioning the tool and the CPU with the CPU socket. The tool and the CPU are correctly positioned with the socket when all of the triangles are aligned.
This action is accompanied by a click sound as the tool closes and grabs the CPU.
This action is accompanied by a click sound as the tool releases its hold on the CPU.