IBM X3950 X5 Problem Determination And Service Manual page 153

6. If you are instructed to return the memory card, follow all packaging
instructions, and use any packaging materials for shipping that are supplied to
you.
Replacing a memory card:
This topic provides instructions to install a replacement memory card.
About this task
The Intel 7500 Scalable Memory Buffer memory card and the Intel 7510 Scalable
Memory Buffer memory card are not interchangeable and cannot be used in the
same server. To verify that your server supports the memory card that you are
installing, look at the label on the top of the memory card. If the label does not
state that the memory card can be used only in machine types 7143 and 7191, the
memory card can be used only in machine type 7145 and 7146.
To install a replacement memory card, complete the following steps:
Procedure
1. Make sure that the memory card that you are installing is supported by your
server by verifying the machine types listed on the label on top of the memory
card.
2. Insert the memory card into the memory-card connector. Press the memory
card into the connector and the retention latch down onto the top of the
memory card.
3. Slide the blue release latch toward the front of the server, into the locked
position.
4. Install the top cover (see "Replacing the top cover" on page 107).
Removing a DIMM:
This topic provides instructions for how to remove a DIMM.
About this task
DIMMs must be installed in pairs of the same type and speed. To use the
memory-mirroring feature, all the DIMMs that are installed in the server must be
of the same type and speed, and the operating system must support memory
mirroring.
To remove a DIMM, complete the following steps.
NOTE:
Only use
this memory
card with
Machine
Types 7143
or 7191
Chapter 5. Removing and replacing components
137