150 Installing Blade Components7 Close the blade. See "Closing the Blade" on page 104.8 Install the blade in the system. See "Installing a Blade" on page 98.Blade System Board (Service Only)Removing the System BoardCAUTION: Only trained service technicians are authorized to remove the systemcover and access any of the components inside the system. Before you begin thisprocedure, review the safety instructions that came with the system.1 Remove the blade. See "Removing a Blade" on page 96.2 Install an I/O connector cover on the I/O connector(s) at the back of theboard.3 Open the blade. See "Opening the Blade" on page 100.CAUTION: The processor and heat sink can become extremely hot. Be sure theprocessor has had sufficient time to cool before handling.CAUTION: The memory modules are hot to the touch for some time after thesystem has been powered down. Allow time for the memory modules to coolbefore handling them. Handle the memory modules by the card edges and avoidtouching the components.NOTICE: If you are removing two hard drives, label them so you can replace themin their original locations.4 Remove the hard drives. See "Removing a Hard Drive" on page 143.5 Remove the hard-drive backplane. See "Hard-Drive Backplane" onpage 148.6 For a PowerEdge M905 or M805 blade, remove mezzanine cards 1 and 4(the outermost mezzanine cards).For a PowerEdge M605 or M600 blade, remove both mezzanine cards ifpresent.NOTICE: If you are removing multiple mezzanine cards, label them so you canreplace them in their original locations.
