NOTE: 1R, 2R, and 4R in the following tables indicate single-, dual-, and quad-rank DIMMs
respectively.
Table 26. Memory configurations—two processors
System
capacity (in
GB)
DIMM size (in
GB)
Number of
DIMMs
DIMM rank,
organization, and
frequency
DIMM slot population
64 16 4
2R, x4, 2133 MT/s,
2R, x4, 1866 MT/s,
A1, A2, B1, B2
128 16 8
2R, x4, 2133 MT/s,
2R, x4, 1866 MT/s,
A1, A2, A3, A4, B1, B2, B3, B4
256 16 16
2R, x4, 2133 MT/s,
2R, x4, 1866 MT/s,
A1, A2, A3, A4, A5, A6, A7, A8,
B1, B2, B3, B4, B5, B6, B7, B8
384 16 24
2R, x4, 2133 MT/s,
2R, x4, 1866 MT/s,
A1, A2, A3, A4, A5, A6, A7, A8,
A9, A10, A11, A12, B1, B2, B3, B4,
B5, B6, B7, B8, B9, B10, B11, B12
512 32 16
LRDIMM, 4R, x4, 2133
MT/s
A1, A2, A3, A4, A5, A6, A7, A8,
B1, B2, B3, B4, B5, B6, B7, B8
768 32 24
LRDIMM, 4R, x4, 1866
MT/s
LRDIMM, 4R, x4, 1600
MT/s
A1, A2, A3, A4, A5, A6, A7, A8,
A9, A10, A11, A12, B1, B2, B3, B4,
B5, B6, B7, B8, B9, B10, B11, B12
Removing memory modules
Prerequisites
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
1. Ensure that you read the Safety instructions.
2. Follow the procedure listed in Before working inside your system.
3. Remove the cooling shroud.
4. If installed, remove the cooling-fan assembly. For more information, see Removing the cooling-fan
assembly
WARNING: The memory modules are hot to touch for some time after the system has been
powered down. Allow the memory modules to cool before handling them. Handle the memory
modules by the card edges and avoid touching the components or metallic contacts on the
memory module.
60