DEC DECstation 316+, Service Manual, Page: 66 / 94

3–20 FRU Replacement
3.2.11.1 Single-In-Line Memory Module Replacement
Replace the Single-In-Line Memory Modules (SIMMs) as follows:
1. Remove the system cover (Section 3.2.4).
2. Remove the 0K memory adapter from the system by first
removing the mounting screw that secures it to the chassis,
and then pulling the board up and out of the slot connector.
3. To remove a SIMM use both hands to spread the retaining
clips that hold the SIMM in place (Figure 3–10). If the SIMM
to be replaced is the bottom one in a pair it will be necessary
to remove the top one first and then the bottom one.
4. Move the SIMM forward to the vertical position.
5. Use your index fingers to pull the SIMM away from the
retaining brackets.
6. To install a new SIMM, grasp the SIMM at both ends and
insert it into the socket (Figure 3–10). Make sure the SIMM is
fully seated in the connector by pressing backward and down
on the SIMM to lock it into place.
NOTE
The number of chips on the SIMM modules may vary based
on the vendor.