Mode-Specific Guidelines; Memory Configuration; Removing Memory Modules - Dell DL4000 Owner's Manual

channel 3: slots A4, A8, and A12
Processor 2 channel 0: slots B1, B5, and B9
channel 1: slots B2, B6, and B10
channel 2: slots B3, B7, and B11
channel 3: slots B4, B8, and B12

Mode-specific guidelines

Four memory channels are allocated to each processor. The allowable configurations depend on the
memory mode selected.
NOTE: x4 and x8 DRAM based DIMMs can be mixed providing support for RAS features. However,
all guidelines for specific RAS features must be followed. x4 DRAM based DIMMs retain Single
Device Data Correction (SDDC) in memory optimized (independent channel) mode. x8 DRAM based
DIMMs require Advanced ECC mode to gain SDDC.
The following sections provide additional slot population guidelines for each mode.
Memory optimized (independent channel) mode
This mode supports SDDC only for memory modules that use x4 device width, and the mode does not
impose any specific slot population requirements.

Memory configuration

The following table shows the memory configuration for a two processor configuration.
NOTE: 2R in the following table indicates dual ranked DIMMs.
Table 1. Memory configuration
Configuratio System
n Capacity
(in GB)
Standard 64
High capacity 128

Removing memory modules

WARNING: The memory modules are hot to the touch for some time after the system has been
powered down. Allow time for 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.
34
DIMM Number DIMM Rank,
Size (in of Organization,
GB) DIMMs and Frequency
2R, x8, 1600
8 8
MT/s,
2R, x8, 1600
16 8
MT/s,
DIMM Slot Population
A1, A2, A3, A4
B1, B2, B3, B4
A1, A2, A3, A4
B1, B2, B3, B4