Dell PowerEdge MX740c EMC PowerEdge MX740c Installation and Service Manual - Page 79

Removing a memory module, Removing a memory module

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Table 12. Memory population rules (continued) Processor Configuration Memory population Multi rank sparing population order A{1}, B{1}, A{2}, B{2}, A{3}, B{3}, A{4}, B{4}, A{5}, B{5}, A{6}, B{6} Fault resilient population order A{1, 2, 3, 4, 5, 6}, B{1, 2, 3, 4, 5, 6}, A{7, 8, 9, 10, 11, 12}, B{7, 8, 9, 10, 11, 12} Memory population information ● DIMMs must be populated in the order specified. ● Requires three ranks or more per channel. Supported with 6 or 12 DIMMs per processor. Removing a memory module Prerequisites 1. Follow the safety guidelines listed in Safety instructions on page 41. 2. Follow the procedure listed in Before working inside your sled on page 42. 3. Remove the air shroud. WARNING: Allow the memory modules to cool after you power off the system. 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. NOTE: You must follow the thermal restriction while using DIMM blank. For information about thermal restriction, see Thermal restrictions. Steps 1. Locate the appropriate memory module socket. WARNING: Handle each memory module only by the card edges, ensuring not to touch the middle of the memory module or metallic contacts. 2. Push the ejectors outward on both ends of the memory module socket to release the memory module from the socket. 3. Lift the memory module from the system. Figure 49. Removing a memory module Next steps 1. Install the memory module. Installing and removing system components 79

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Table 12. Memory population rules (continued)
Processor
Configuration
Memory population
Memory population information
Multi rank sparing
population order
A{1}, B{1},
A{2}, B{2},
A{3}, B{3},
A{4}, B{4},
A{5}, B{5},
A{6}, B{6}
●
DIMMs must be populated in the order
specified.
●
Requires three ranks or more per channel.
Fault resilient population
order
A{1, 2, 3, 4, 5, 6},
B{1, 2, 3, 4, 5, 6},
A{7, 8, 9, 10, 11, 12},
B{7, 8, 9, 10, 11, 12}
Supported with 6 or 12 DIMMs per processor.
Removing a memory module
Prerequisites
1.
Follow the safety guidelines listed in
Safety instructions
on page 41.
2.
Follow the procedure listed in
Before working inside your sled
on page 42.
3.
Remove the air shroud
.
WARNING:
Allow the memory modules to cool after you power off the system. 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.
NOTE:
You must follow the thermal restriction while using DIMM blank. For information about thermal restriction, see
Thermal restrictions
.
Steps
1.
Locate the appropriate memory module socket.
WARNING:
Handle each memory module only by the card edges, ensuring not to touch the middle of the
memory module or metallic contacts.
2.
Push the ejectors outward on both ends of the memory module socket to release the memory module from the socket.
3.
Lift the memory module from the system.
Figure 49. Removing a memory module
Next steps
1.
Install the memory module
.
Installing and removing system components
79