Owners Manual

Table 23. Memory configurations—two processors (continued)
System
capacity (in
GB)
DIMM size (in
GB)
Number of
DIMMs
DIMM rank, organization,
and frequency
DIMM slot population
160 8 20
2R, x8, 1866 MT/s
2R, x8, 1600 MT/s
A1, A2, A3, A4, A5, A6, A7, A8, A9, A11,
B1, B2, B3, B4, B5, B6, B7, B8, B9, B11
16 and 8 12
2R, x4, 2133 MT/s,
2R, x8, 2133 MT/s,
2R, x4, 1866 MT/s
2R, x8, 1866 MT/s
A1, A2, A3, A4, A5, A6, B1, B2, B3, B4,
B5, B6
NOTE: 16 GB DIMMs must be
installed in slots numbered A1, A2,
A3, A4, B1, B2, B3, and B4. 8 GB
DIMMs must be installed in slots A5,
A6, B5, and B6.
192 8 24
2R, x8, 1866 MT/s
2R, x8, 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
16 12
2R, x4, 2133 MT/s,
2R, x4, 1866 MT/s
A1, A2, A3, A4, A5, A6, B1, B2, B3, B4,
B5, B6
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, 1866 MT/s,
2R, 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
32 12
LRDIMM, 4R, x4, 2133 MT/s A1, A2, A3, A4, A5, A6, B1, B2, B3, B4,
B5, B6
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 are shipped with your product.
1. Follow the safety guidelines listed in the Safety instructions section.
2. Follow the procedure listed in the Before working inside your system section.
3. Remove the cooling shroud.
NOTE:
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.
CAUTION: To ensure proper system cooling, memory module blanks must be installed in any memory socket that
is not occupied. Remove memory module blanks only if you intend to install memory modules in those sockets.
60 Installing and removing system components