NEC HX4600, User Manual

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Upgrading Your System 4-15
8.
Ensure the memory board jumper is positioned on J06 as shown in Figure 4-6
(50ns).
9.
Hold the memory board by its edges and start to insert it into the slot guides. On the
CPU baseboard, locate the memory board connector. Do not press in on the board
yet! Ease board into the slot guides until it is just touching the connector on the
CPU baseboard.
10.
Be sure the ejector levers are extended so they can engage the chassis frame. Press
the board carefully but firmly into the CPU baseboard connector to seat the board.
Close the ejectors on both sides of the memory board. Be sure the ejector is firmly
hooked in the chassis frame before closing the ejector.
11.
Hook the right side of the support panel into the chassis frame and swing the
support panel into position so that the rear edge of the memory boards fits snug
against the panel. The support panel is secured to the chassis by a black fastener.
Push in on the support panel fastener until it clicks in the locked position.
12. Replace the left side panel and turn on the system.
13. Run the BIOS Setup to confirm the DIMMs are installed correctly.
Removing DIMMs
Remove DIMMs from their sockets as follows.
1.
Power off the system and remove the left side panel as described earlier in this
chapter.
2. Remove the metal panel supporting the memory board. The support panel is secured
to the chassis by a pin. Release the support panel by pulling the black fastener
towards you (listen for two clicks). Grasp the left side of the support panel and
swing it away from the chassis to remove it. Set the support panel aside for later
installation.
3.
Open the ejectors on both sides of the memory board (see Figure 4-7). Holding the
memory board by its edges, carefully pull it out until the edge connectors are free.
Place the memory board on an antistatic surface.
Note:
Use extreme care when removing a DIMM. Hold DIMMs
only by their edges. Place them on an antistatic surface; do not slide
them across any surface. Applying too much pressure can break the
retaining clips or damage the socket slot. Apply only enough
pressure on the retaining clips to release the DIMM.
4. Remove the DIMM modules one at a time starting from the highest numbered
sockets.
5. To remove each DIMM, gently spread the retaining clips (see Figure 4-6, C) just
enough so that you can pull the top edge of the DIMM away from the clips.
6. Carefully lift the DIMM away from the socket and store it in an antistatic package.
7. Repeat the above steps to remove the remaining DIMMs.