Supermicro C2SBC-Q User Manual download pdf (Page 24)

2-6

C2SBC-Q User's Manual

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. The memory scheme is interleaved; therefore, we recommend that

you install two modules at a time, beginning with DIMM1A, DIMM1B, then,

DIMM2A 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 C2SBC-Q supports up to 8 GB Unbuffered Non-ECC DDR2 800/677 MHz in

4 DIMMs. Populating DIMM1A,DIMM1B, and/or DIMM2A, 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 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 Avail-

ability 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 specic 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.

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Supermicro C2SBC-Q User Manual Page 24