User`s manual
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
1. Insert the desired number of DIMMs into the memory slots, starting with
DIMM1A, DIMM2A, then, DIMM1B and DIMM2B
2. Insert each DIMM module vertically into its slot. Pay attention to the notch along
the bottom of the module to prevent inserting the DIMM module incorrectly.
3. Gently press down on the DIMM module until it snaps into place in the slot.
Repeat for all modules (see step 1 above).
Memory Support
The C2SEA motherboard supports up to 8 GB Unbuffered non-ECC
DDR3@1333/1066/800 MHz in 4 DIMMs, and the C2SEE board supports up to 4
GB Unbuffered non-ECC DDR3@1333/1066/800 MHz in 2 DIMMs.
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. However, the functionality of ECC is not supported
by the chipset.
3. Due to memory allocation to system devices, memory remaining avail-
able 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.) For Microsoft Windows
users: Microsoft implemented a design change in Windows XP with
Service Pack 2 (SP2) and Windows Vista. This change is specic to the
Physical Address Extension (PAE) mode behavior which improves driver
compatibility. For more information, please read the following article at
Microsoft’s Knowledge Base website at: http://support.microsoft.com/
kb/888137.