3-27
Cisco UCS C260 Server Installation and Service Guide
OL-24342-01z
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
DIMM Replacement Procedure
This section includes the following topics:
•
Identifying a Faulty Memory Riser or DIMM, page 3-27
•
Replacing DIMMs, page 3-27
Identifying a Faulty Memory Riser or DIMM
The memory riser includes fault LEDs on its top panel so that you can identify which riser is faulty or
which riser contains faulty DIMMs (see
Figure 3-14
).
•
If one or more of the numbered DIMM fault LEDs are lit, replace the corresponding DIMMs as
described in
Replacing DIMMs, page 3-25
. See
Figure 3-16 on page 3-25
for the DIMM slot
numbering on the riser.
•
If the riser fault LED is lit, replace the memory riser as described in
Memory Riser Replacement
Procedure, page 3-23
.
Replacing DIMMs
To install a DIMM assembly, follow these steps:
Step 1
Remove the DIMMs that you are replacing:
a.
Power off the server as described in the
“Shutting Down and Powering Off the Server” section on
page 3-7
.
b.
Slide the server out the front of the rack far enough so that you can remove the top cover. You might
have to detach cables from the rear panel to provide clearance.
Caution
If you cannot safely view and access the component, remove the server from the rack.
c.
Remove the top cover as described in
“Removing and Replacing the Server Top Cover” section on
page 3-8
.
d.
Identify the memory riser that contains the faulty DIMM. See
Identifying a Faulty Memory Riser or
DIMM, page 3-22
.
e.
Lift on the blue plastic handle on the top panel of the riser to disengage the latches at each end, and
then pull the riser from the motherboard socket.
f.
Locate the faulty DIMM and remove it from the socket on the memory riser by opening the ejector
levers at both ends of the DIMM socket.
Step 2
Install a new DIMM:
Note
Before installing risers or DIMMs, refer to the population guidelines. See
Memory Riser
Population Guidelines, page 3-21
and
DIMM Performance Guidelines and Population Rules,
page 3-25
.
a.
Align the new DIMM with the socket on the memory riser. Use the alignment key in the DIMM
socket to correctly orient the DIMM.
b.
Push the DIMM into the connector until it is fully seated and the ejector levers on either side of the
connector lock into place.
