Sun Microsystems Sun Blade 100 Service Manual page 143

Caution – If the DIMM is not seated into its slot evenly, it can cause electrical short
circuits that will damage the system. Ensure that all contacts engage at the same
time by pressing evenly on both ends of the DIMM—do not rock the DIMM into
place. When the DIMM is properly seated, you should hear a click.
3. Press firmly on the top ends of the DIMM at the same time until the DIMM is
properly seated.
4. Verify that the ejection levers are closed toward the DIMM.
5. Detach the wrist strap, replace the system cover, and power on the system as
described in Chapter 9 "Finishing Component Replacement."
Chapter 8 Removing and Replacing the Motherboard and Related Components 8-11