HP LC 2000 - Manual (Page 85)

Chapter 7 Installing Additional Processors
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10. Remove the processor module from the sealed bag.
11. Open the latches on top of the processor slot. See Figure 7-5.
If a processor is installed in the slot, the processor module will move up in
the slot where you can grasp it for removal.
Figure 7-5. Installing the Processor
12. Align the additional processor module over the secondary processor
module slot. See Figure 7-5.
13. Gently push down on the processor module until it seats.
14. Slide the retaining latches closed to completely seat the processor module
firmly in the connector. See Figure 7-6.