Supported Dimms - IBM Flex System p270 Compute Node Installation And Service Manual

Important: If there is a gap between the DIMM and the retaining clips, the DIMM is not correctly
installed. Open the retaining clips to remove and reinsert the DIMM. Install a DIMM filler (C) in any
location where a DIMM is not present to avoid machine damage.
11. Install and close the compute node cover. See "Installing and closing the compute node cover" on
page 34.
Statement 21
CAUTION:
Hazardous energy is present when the compute node is connected to the power source. Always
replace the compute node cover before installing the compute node.
12. Install the compute node into the IBM Flex System Enterprise Chassis. See "Installing the compute
node in an IBM Flex System Enterprise Chassis" on page 92.
13. If you replaced the part because of a service action, verify the repair by checking that the amber
enclosure fault LED is off. For more information, see "Compute node control panel button and
LEDs" on page 9.
Related concepts:

"Supported DIMMs"

Your compute node contains connectors for registered dual inline memory modules (RDIMMs).
Supported DIMMs
Your compute node contains connectors for registered dual inline memory modules (RDIMMs).
The system board in the IBM Flex System p270 Compute Node contains connectors for 16 low profile
(LP) or very low profile (VLP) memory DIMMs.
The maximum size for a single DIMM is 8 GB for a VLP DIMM and 32 GB for an LP DIMM. The
maximum memory capacity for an IBM Flex System p270 Compute Node is 512 GB.
Memory module rules:
v Install DIMM fillers in unused DIMM slots for proper cooling.
v Install DIMMs in pairs (1 and 4, 5 and 8, 9 and 12, 13 and 16, 2 and 3, 6 and 7, 10 and 11, and 14 and
15).
v Both DIMMs in a pair must be the same size, speed, type, and technology. You can mix compatible
DIMMs from different manufacturers.
v Each DIMM within a processor-support group (1-4, 5-8, 9-12, 13-16) must be the same size and speed.
v Install only supported DIMMs, as described on the ServerProven website.
v Installing or removing DIMMs changes the configuration of the compute node. After you install or
remove a DIMM, the compute node is automatically reconfigured, and the new configuration
information is stored.
The following table shows allowable placements of DIMM modules for the IBM Flex System p270
Compute Node.
Table 5. Memory module combinations for the IBM Flex System p270 Compute Node
DIMM
count
1 2 3
2 X
4 X
6 X
48
Power Systems: IBM Flex System p270 Compute Node Installation and Service Guide
DIMM slots for the IBM Flex System p270 Compute Node
4 5 6 7
X
X
X X
8 9 10 11
X
X X
12 13 14 15
X
X
16