Installing A Dimm - Lenovo 5458 Installation And Service Manual

v The following table shows the UDIMM memory population rule to optimize the
system performance.
Table 8. UDIMM population rule
DIMM connector 1
Populated
Populated

Installing a DIMM

Use this information to install a DIMM.
Before you begin
Read the safety information in "Safety" on page v and "Installation guidelines" on
page 31.
If you are installing an optional device in the server, you need to slide the server
out from the rack enclosure, turn off the server and peripheral devices, and
disconnect the power cords and all external cables.
Attention: Static electricity that is released to internal server components when the
server is powered on might cause the server to halt, which might result in the loss
of data. To avoid this potential problem, always use an electrostatic-discharge wrist
strap or other grounding system when you work inside the server with the power
on.
About this task
The following illustration shows the location of the DIMM connectors on the
system board.
DIMM connector 2 DIMM connector 3
Empty Populated
Populated Populated
DIMM connector 4
Empty
Populated
Chapter 2. Installing optional devices
57