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support.dell.com Installing Upgrades on the System Board 2-17
NOTE: Your computer is designed for peak performance with specific DIMMs that are
validated through rigorous testing. The system may not recognize other synchronous
dynamic random-access memory (SDRAM) DIMMs and may fail power-on self-test
(POST).
Installing a DIMM
1. Remove the computer cover according to the instructions in “Removing and
Replacing the Computer Cover” found earlier in this chapter.
2. Remove the riser-board bracket according to the instructions in “Removing and
Replacing the Riser-Board Bracket” found earlier in this chapter.
3. Remove the expansion cards according to the instructions in “Removing Expan-
sion Cards” found earlier in this chapter.
4. Press outward on the plastic securing clips at each end of the DIMM socket to
release the clips as shown in step 1 of Figure 2-11.
Figure 2-11. Installing a DIMM
5. Orient the DIMM so that the cutouts on its edge connector align with the cross-
bars in the central groove of the socket.
NOTICE: Do not press near the middle of the DIMM. Doing so could break
the module.
6. Insert the DIMM straight down into the socket, making sure that it fits into the
vertical guides at each end of the socket.
Press firmly at each end until the DIMM snaps into place (see step 2 of
Figure 2-11).
If you inserted the DIMM correctly, the securing clips snap into the cutouts at
each end of the DIMM (see step 3 of Figure 2-11).
securing
clips (2)
cutouts (2)
1.
2.
3.