During integration it is important to install memory in the DIMM sockets prior to installing a PCI Express* x8 card to avoid interference with the memory retention mechanism.  
 
To install DIMMs, follow these steps:

1. Observe the precautions in "Safety Information" available in the Product User's Guide. 
2. Turn off all peripheral devices connected to the computer.  Turn off the computer and disconnect the AC power cord.
3. Remove the computer’s cover and locate the DIMM sockets.
4. Remove the PCI Express* card if it interferes with the DIMM retaining clips from being easily opened and closed.
5. Make sure the clips at either end of the DIMM socket(s) are pushed outward to the open position.
6. Holding the DIMM by the edges, remove it from its anti-static package.
7. Position the DIMM above the socket.  Align the small notch at the bottom edge of the DIMM with the keys in the socket 
8. Insert the bottom edge of the DIMM into the socket. 
9. When the DIMM is inserted, push down on the top edge of the DIMM until the retaining clips snap into place.  Make sure the clips are firmly in place.
   (Be sure to verify that the DIMM is fully seated, and latches are closed)
10. Reinstall (or install) the PCI Express* x8 card if it was removed prior to installing the DIMMs.
11. Replace the computer’s cover and reconnect the AC power cord.

To remove a memory module, follow these steps:

1. Observe the precautions in "Safety Information" available in the Product User's Guide. 
2. Turn off all peripheral devices connected to the computer, then turn off the computer.
3. Remove the AC power cord from the computer.
4. Remove the computer’s cover.
5. Remove the PCI Express* x8 card if it interferes with the DIMM clips from being easily opened and closed.  
6. Gently spread the retaining clips at each end of the DIMM socket.  The DIMM pops out of the socket.
7. Hold the DIMM by the edges, lift it away from the socket, and store it in an anti static package.
   (Be sure to verify that the DIMM is fully seated, and latches are closed)
8. Reinstall and reconnect any parts you removed or disconnected to reach the DIMM sockets.
9. Replace the computer’s cover and reconnect the AC power cord.

This applies to:

Intel® Entry Server Board SE7221BA1-E