Supero SUPERO X7SBi-LN4, User Manual

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Chapter 2: Installation
2-7
2-4 Installing DIMMs
Note: Check the Supermicro web site for recommended memory modules.
Warning: Exercise extreme care when installing or removing
DIMM modules to prevent any possible damage. Also note that
the memory is interleaved to improve performance (see step 1).
DIMM Installation
Insert the desired number of DIMMs into the memory slots, starting with 1.
DIMM1A. The memory scheme is interleaved so you must install two modules
at a time, beginning with DIMM1A and DIMM2A then DIMM1B and DIMM2B
Insert each DIMM module vertically into its slot. Pay attention to the notch 2.
along the bottom of the module to prevent inserting the DIMM module incor-
rectly.
Gently press down on the DIMM module until it snaps into place in the slot. 3.
Repeat for all modules (see step 1 above).
Memory Support
The X7SBi-LN4/X7SBi-LN4-TM supports up to 8 GB of Unbuffered ECC/Non-
ECC DDR2 800/677 MHz in 4 DIMM slots. Populating DIMM1A,DIMM2A, and/or
DIMM1B, DIMM2B with memory modules of the same size and of the same type
will result in dual channel, two-way interleaved memory which is faster than the
single channel, non-interleaved memory.
Notes:
1. Due to the OS limitations, some operating systems may not show more
than 4GB of memory.
2. Both Unbuffered ECC and Non-ECC memory modules can be installed in
the memory slots. When ECC memory is used, it may take 25-40 seconds for
the VGA to display.
3. Due to memory allocation to system devices, the amount of memory that
remains available for operational use will be reduced when 4 GB of RAM is
used. The reduction in memory availability is disproportional. (Refer to the
following Memory Availability Table for details.)