Memory Sparing Function - Fujitsu Primergy RX300 S4 User Manual

Memory sparing function

Change settings with the BIOS setup utility to use the memory sparing function. A spare memory pair is
reserved by this function without using a bank of the installed memory module. The available memory
capacity (logical capacity) is two-thirds of the physical capacity.
If a recoverable memory failure occurs, the defective memory pair is replaced with the reserved memory
decreasing the occurrence of irrecoverable memory failure.
Installation conditions
Install memory modules according to the following conditions.
• Memory modules must be installed in all memory slots of a memory board. When one memory board
is installed, memory bank 3 becomes the spare. When two memory boards are installed, the memory
bank 3 and memory bank 7 become the spares.
• Install memory modules with the same capacity in all memory slots.
BIOS settings
After installing the memory modules, perform the following settings to enable the memory sparing
function.
1
Install the memory modules.
"6.4.4 How to Install or Remove Memory Modules" (p.150)
2
Start the BIOS Setup Utility.
"7.2.1 Starting and Exiting the BIOS Setup Utility" (p.183)
3
Select [Advanced System Configuration] in the [Advanced] menu, and press
the [Enter] key.
"7.2.5 Advanced Menu" (p.190)
4
Select the [Memory Redundancy], and press the [Enter] key.
5
Select the [Sparing], and press the [Enter] key.
6
Select [Save Changes & Exit] in the [Exit] menu and press the [F10] key.
A message confirming whether to save the BIOS setting change is displayed.
7
Select [Yes] and press the [Enter] key.
After the system restarts, the memory sparing configuration becomes effective.
PRIMERGY RX300 S4 User's Guide
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