Removing Memory Modules - Dell PowerEdge E31S Series Owner's Manual

Table 39. Memory configurations—2 processors (continued)
System DIMM size
capacity— —in GB
in GB
1536 64
3072 128
*
16 GB DIMMs must be installed in slots numbered A1, A2, A3, A4, B1, B2, B3, and B4 and 8 GB DIMMs must be installed in slots
A5, A6, B5, and B6.
NOTE: If all 3 slots in the channel are populated with 128 GB LRDIMMS, the clock speed drops to 2133MHz.

Removing memory modules

Prerequisites
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that are shipped with your product.
1. Follow the safety guidelines listed in the Safety instructions section.
2. Follow the procedure listed in the Before working inside your system section.
3. Remove the cooling shroud.
4. If installed, remove the cooling fan assembly.
5. If installed, remove the 165 W heat sink.
NOTE: The memory modules are hot to touch for some time after the system has been powered down. Allow the memory
modules to cool before handling them. Handle the memory modules by the card edges and avoid touching the components
or metallic contacts on the memory module.
CAUTION: To ensure proper system cooling, memory module blanks must be installed in any memory socket that
is not occupied. Remove memory module blanks only if you intend to install memory modules in those sockets.
Steps
1. Locate the appropriate memory module socket.
CAUTION: Handle each memory module only by the card edges, ensuring not to touch the middle of the
memory module or metallic contacts.
2. To release the memory module from the socket, simultaneously press the ejectors on both ends of the memory module
socket.
3. Lift and remove the memory module from the system.
Number of DIMM rank, organization, and
DIMMs frequency
24
4 R, x4, 1866 MT/s
4 R, x4, 2133 MT/s
24 8 R, x4, 2133 MT/s
DIMM slot population
A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
A11, A12, B1, B2, B3, B4, B5, B6, B7, B8,
B9, B10, B11, B12
A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
A11, A12, B1, B2, B3, B4, B5, B6, B7, B8,
B9, B10, B11, B12
Installing and removing system components 85