CHAPTER 4: Installing Components

Sparing mode

For the sparing mode, please follow the online spare FBDIMM configuration requirements (in addition to general configuration requirements) below:

•When only DIMM1 and DIMM3 are being used, they must be fully populated with dual-rank FBDIMMs.

•If DIMM1 and DIMM3, and DIMM2 and DIMM4 are being used, they must be fully populated.

•If installed, DIMM1 and DIMM3, and DIMM2 and DIMM4 must contain FBDIMMs with identical part numbers.

•If installed, DIMM5 and DIMM7, and DIMM6 and DIMM8 must also contain FBDIMMs with identical part numbers.

In the online spare mode, FBDIMMs must be populated as specified in the following table:

DIMM Installation Options - Sparing Mode

DIMM

DIMM1 and

DIMM2 and

DIMM5 and

DIMM6 and

 

DIMM3

DIMM4

DIMM7

DIMM8

 

 

 

 

 

2*

X

-

-

-

 

 

 

 

 

4

X

X

-

-

 

 

 

 

 

8

X

X

X

X

 

 

 

 

 

* Use only DIMM1 and DIMM3 with dual-rank FBDIMMs.

To install or replace memory:

1Follow the instructions in “Preventing static electricity discharge” on page 28. Make sure that you turn off the server, then unplug the power cord(s) and all other cables connected to the server.

2Follow the instructions in “Opening the server case” on page 29.

3Pull the plastic retaining clips (1) away from the sides of the memory module slot. If you are replacing a memory module, lift the old module (2) out of the slot.

4Align the notch on the new module with the notch in the memory module slot and press the module firmly into the slot. The retaining clips on the sides of the memory slot should secure the memory module automatically.

5Follow the instructions in “Closing the server case” on page 30.

6Turn on the server and open the BIOS setup utility. Verify the System Memory listed in the Main menu. When you exit the BIOS setup utility make sure that the operating system completely loads. If you receive an error, see “Memory” on page 81.

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