Dell PowerEdge T440 EMC Installation and Service Manual - Page 102

Removing a memory module

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Table 39. Memory population rules (continued) Processor Configuration Memory population Memory population information ○ For 14 DIMMs: A1, A2, A4, A5, A7, A8, A9, A10, B1, B2, B3, B4, B5, B6 Mirroring population order Single rank sparing population order A{1, 2, 3, 4, 5, 6}, B{1, 2, 3, 4, 5, 6} A{1}, B{1}, A{2}, B{2}, A{3}, B{3}... Multi rank sparing population order A{1}, B{1}, A{2}, B{2}, A{3}, B{3}... Mirroring is supported with 6 DIMM slots per processor. Populate in this order, odd amount per processor allowed. Requires two ranks or more per channel. Populate in this order, odd amount per processor allowed. Requires three ranks or more per channel. Removing a memory module Prerequisites 1. Follow the safety guidelines listed in Safety instructions. a. Follow the procedure listed in Before working inside your system. 2. 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. 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. Push the ejectors outward on both ends of the memory module socket to release the memory module from the socket. 3. Lift and uninstall the memory module from the system. Figure 54. Removing a memory module Next steps 1. Install the memory module. 102 Installing and removing system components

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Table 39. Memory population rules (continued)
Processor
Configuration
Memory population
Memory population information
○
For 14 DIMMs: A1, A2, A4, A5,
A7, A8, A9, A10, B1, B2, B3,
B4, B5, B6
Mirroring population order
A{1, 2, 3, 4, 5, 6}, B{1, 2, 3, 4, 5,
6}
Mirroring is supported with 6 DIMM
slots per processor.
Single rank sparing population
order
A{1}, B{1}, A{2}, B{2}, A{3},
B{3}...
Populate in this order, odd amount
per processor allowed. Requires two
ranks or more per channel.
Multi rank sparing population order
A{1}, B{1}, A{2}, B{2}, A{3},
B{3}...
Populate in this order, odd amount
per processor allowed. Requires three
ranks or more per channel.
Removing a memory module
Prerequisites
1.
Follow the safety guidelines listed in
Safety instructions
.
a.
Follow the procedure listed in
Before working inside your system
.
2.
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.
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.
Push the ejectors outward on both ends of the memory module socket to release the memory module from the socket.
3.
Lift and uninstall the memory module from the system.
Figure 54. Removing a memory module
Next steps
1.
Install the memory module.
102
Installing and removing system components