NEC HX4600 User Manual page 87

4. Open the tabs on the cartridge and align the cartridge with the slot so that the heat
sink faces down.
If installing a termination card, align the card so that the embossed logo on the card
faces up.
5. Insert the cartridge into the guide rails of the retention module (see
Figure 4-11) and carefully push it into the module until resistance is felt. Three
distinct clicks should be heard as the processor module seats in the retention
module. Check that it is firmly seated (tabs should be closed).
Figure 4-11. Installing the Processor
6. Reattach the retention arm as follows.
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Align the end of the retention arm with a single alignment dot to the left and the
end with the two dots to the right. The dots should match corresponding dots on
the cartridge or terminator board.
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Push the left end of the retention arm into its slot on the on the left side of the
retention module.
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Turn the retention arm to the right and snap it into place on the right side of the
retention module.
7. Install the required VRM modules (single processor systems come with two VRM
modules installed in VRM sockets 1 and 2). As you add processors, you need to
install additional VRM modules.
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For a second processor, install a VRM module in sockets 3 and 4 (for a total of
four VRM modules for two processors).
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For a third processor, install a VRM module in sockets 5 and 6 (for a total of six
VRM modules for three processors).
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For a fourth processor, no additional VRM modules are required.
Upgrading Your System 4-19