Installing Dimms - Supermicro X7DCL-3 User Manual

X7DCL-3/X7DCL-i User's Manual
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Installing DIMMs

Note: Check the SuperMicro web site for recommended memory modules.
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 DIMM
#1A. The memory scheme is interleaved, so you must install two modules
at a time, beginning with DIMM 1A, DIMM 2A, then DIMM 1B, DIMM 2B, and
DIMM 1C, DIMM 2C. (See the Memory Installation Table Below.)
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 X7DCL-3/X7DCL-i supports up to 32 GB Single-Rank, Registered ECC DDR2
667/533 in 6 DIMMs. Populating DIMM modules with pairs of memory modules
of the same size and same type will result in Interleaved Memory which will
improve memory performance.
Note 1: For the PCB Rev. 1.1 motherboard, Slots 1A and 2A support Dual-Rank
modules; however, Slots 1B, 2B, 1C and 2C support Single-Rank memory only.
The PCB Rev. 1.1a board supports 6 Dual-Rank or 6 Single-Rank modules.
No. of
DIMMs
2DIMMs DIMM 1A
4DIMMs DIMM 1A
6DIMMs DIMM 1A
(Notes: i. DIMM slot# specified: DIMM slot to be populated; "---": DIMM slot not to be
populated. ii. Both Registered ECC DDR2 667MHz and 533 MHz DIMMs are supported;
however, you need to use the memory modules of the same speed and of the same type on
a motherboard. iii. For memory to work properly, you need to follow the restrictions listed
above. )
Note 2: Due to OS limitations, some operating systems may not show more than
4 GB of memory.
Note 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 Availability
Table for details.
CAUTION
Optimized DIMM Population Configurations
Channel 0
------ ------
DIMM 1B ------
DIMM 1B DIMM 1C
2-6
Channel 1
DIMM 2A ------
DIMM 2A DIMM 2B
DIMM 2A DIMM 2B
------
------
DIMM 2C