Acer Altos R910 Series - Manual (Page 83)

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• The system does not support combination of single-channel with
dual-channel memory.
• Use only DDR2 DIMMs. Other DIMMs will not fit into the socket.
Attempts to force a non-DDR2 DIMM into a socket will damage
and/or the socket or the DIMM.
• Hold DIMMs only by the edges. Do not touch the components or
gold edge connectors.
• Install DIMMs with gold-plated edge connectors only.
Important: Follow the DIMM module “Installation and
population order” on page 158 when installing and removing
DIMMs.
Installing DIMMs
Caution! Use extreme care when installing a DIMM. Applying too
much pressure can damage the connector. DIMMs are keyed and
can be inserted in only one way.
Note: DIMM slots on the memory module must be installed only
in certain configurations. Numbers next to DIMM slots correspond
to installation sequence. DIMMs must be installed in pairs.
1 Observe the ESD precautions and pre-installation instructions
described on page 33.
2 Remove the memory board. For instructions, see “Hot-removal of a
memory board” on page 53 or “Cold-removal of a memory board”
on page 70, depending on your server configuration.
3 Remove the memory board DIMM cover from the memory board:
(1) Pull out the latch on the memory board DIMM cover (A).
(2) Press the left and right DIMM cover tabs (B).
(3) Press the retainer tab, on the lower right of the cover (C).