Memory module replacement

One or two Dual Inline Memory Module (DIMM) cards make up the memory module on an Avaya S3400-family server. The number of memory module cards varies, depending on the type of motherboard that is installed:

• Nonintegrated video and LAN model: One 512K DIMM card is present in socket DIMM0.
• Integrated video and LAN model: Two 256K DIMM cards are present in sockets DIMM1A and DIMM2A.

You can replace the DIMM cards that make up the memory module on site. You must turn off the server to reseat or replace a memory module.

Replacing the memory module

To replace a memory module (DIMM card) on the motherboard:

1. Verify that the replacement equipment is on site and appears to be in usable condition, with no obvious shipping damage.
2. Reseat the currently installed memory module.
3. Replace the memory module if needed.

Reseat the currently installed memory module

To reseat the memory module and determine if it is faulty:

1. Shut down the server and unplug the AC power cords.
2. For a rack-mount setup, remove the server from the cabinet.
   1. Prepare a clear area as a work surface for the server.
   2. Unplug all cables from the back of the server. Label the cables so you can easily reconnect them.
   3. Remove the server from the rails, and set the server on the work surface. For safety considerations, get another person to assist you with moving the server.
3. Remove the front bezel and top cover.
4. Remove the circuit card hold-down bracket.
5. Locate the memory module on the motherboard. One or two DIMM cards might be present:
• Nonintegrated video and LAN model: One 512K DIMM card is present in socket DIMM0.
• Integrated video and LAN model: Two 256K DIMM cards are present in sockets DIMM1A and DIMM2A.

To locate the memory module for your model of server, see figure Messaging Application Server (internal view).

6. Verify that the memory module is correctly seated:
   1. Apply pressure to each memory module to verify that the DIMM card is properly seated.
   2. Press the holding clips toward the memory module to verify that the clips are secure.

Caution! Do not force a memory module into or out of the socket. This action can damage the socket, the memory module, or both.

7. Continue as appropriate:
1. If the memory module was properly seated, the module is faulty. See Replace the memory module.
2. If the memory module was improperly installed or seated, verify that the cards are correctly seated now. Continue with this procedure to test the current memory module.
8. Restore power to the server.
1. Leave the cover off. Plug in the cables for the monitor, keyboard, and mouse.
2. Plug in the AC power cord.
9. Watch the memory test at the beginning of the boot.
1. If the memory test completes, note the amount of memory that the system reports.
2. Let the server boot completely.
10. Continue as follows:
1. If the system shows an amount of memory less than 512 MB or if the server did not boot, the memory module is faulty. See Replace the memory module.
2. If the system shows 512 MB of memory and booted correctly, the memory module is operating correctly. Continue with this procedure.
11. Shut down the server and unplug the AC power cords.
12. Replace the circuit card hold-down bracket.
13. Replace the top cover and front bezel.
14. Return the server to its correct location. Plug in all cables.
15. Restore power to the server.
16. Verify operation after the server finishes booting. For example, place a test call to the server. If the server now is operating correctly, you do not need to replace the memory module.

Replace the memory module

To install a new memory module:

1. Press the holding clips on both sides of the socket outward to release a currently installed memory module. See figure Removing a memory module.
2. Gently pull the faulty memory module out of the socket.

Caution! Electrostatic discharge can damage a memory module. Observe proper electrostatic discharge (ESD) precautions when you handle computer components. Wear an antistatic wrist strap that touches your bare skin and connect the strap cable to an earth ground. For more information, see Protecting against ESD damage.

3. Hold the new DIMM card by the edges, and remove the card from its antistatic package.
4. Position the replacement memory module in the correct orientation over the appropriate socket:
• Nonintegrated video and LAN model: Use socket DIMM0.
• Integrated video and LAN model: Use sockets DIMM1A and DIMM2A.

Note: If your model of server uses two DIMM cards for the memory module, you must replace both DIMM cards to repair the memory module. The server performs best when the DIMM cards are a matched set.

To locate the memory module for your model of server, see figure Messaging Application Server (internal view).

5. Gently push the replacement memory module into the appropriate socket. See figure Inserting a memory module.
6. When the DIMM card is seated firmly, the holding clips spring shut to lock the card into position. Verify that the clips are firmly in place.

Caution! Do not force a memory module into or out of the socket. This can damage the socket, the memory module, or both.

7. If your model of server uses two DIMM cards for the memory module, repeat Steps 1 through 6 to replace the second DIMM card.
8. Replace the circuit card hold-down bracket.
9. Replace the top cover and front bezel.
10. For a rack-mount setup, return the server to the cabinet.
11. Plug in all cables at the back of the server.
12. Restore power to the server.
13. Watch the memory test at the beginning of the boot.
1. If the memory test completes, note the amount of memory that the system reports.
2. Let the server boot completely.
14. Continue as follows:
1. If the system shows an amount of memory less than 512 MB or if the server did not boot, the memory module is faulty. Return to Replace the memory module. Verify that the memory module is correctly installed. If so, you must replace the module.
2. If the system shows 512 MB of memory and booted correctly, the memory module is operating correctly. Continue with this procedure.
15. Verify that the server is operating correctly. For example, place a test call to the server.

Top of page