HP ProLiant DL145 - Manual (Page 33)

Hardware Options Installation
HP ProLiant DL145 Server User Guide 4-3
9. Install the processor.
Figure 4-3: Installing a processor
10. Close the processor socket lever.
11. Remove the clear protective cover from the heatsink to expose the thermal pad.
12. Install the processor heatsink.
Figure 4-4: Installing processor heatsink