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66 Installing System Components
9
Press <F2> to enter the System Setup program, and check that the processor information
matches the
new system configuration.
See "Using the System Setup Program" on page 31 for instructions about using the System Setup
program.
10
Run the system diagnostics to verify that the new processor operates correctly.
See "Running the System Diagnostics" on page 117 for information about running the diagnostics.
Processor VRMs
If you add a third and fourth processor, you must also install a voltage regulator module (VRM) for each
processor.
Installing a VRM
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the
components inside the system. See your Product Information Guide for complete information about safety
precautions, working inside the computer, and protecting against electrostatic discharge.
1
Turn off the system, including any attached peripherals, and disconnect the system from the electrical
outlet.
2
Open the system. See "Opening the System" on page 46.
3
Remove the top cooling shroud. See "Removing the Cooling Shrouds" on page 49.
4
Locate the two VRM sockets. See Figure 6-2.
5
Press the ejectors on the socket down and out, as shown in Figure 3-13, to allow the VRM to be
inserted into the socket.