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PowerEdge R515 Technical Guide
6 Memory
6.1 Overview
The PowerEdge R515 utilizes DDR3 memory providing a high-performance, high-speed memory interface
capable of low latency response and high throughput.
Key features of the R515 memory system include the following:
Support for up to 32 GB of UDIMM memory (8 x 4 GB)
Support for up to 128 GB of DDR3 RDIMM memory (8 x 16 GB) (16 GB DIMMS available Q1 2011)
Support for 1333 MHz single- and dual-rank DIMMs
Support for 1066 MHz quad-rank DIMMS
Two channels per processor
Advanced ECC (Chipkill) mode (x4 RDIMM only)
Online spare
Parity
Low voltage (LV) DIMM support (6 core processor only)
Single bit error correction
6.2 DIMMs Supported
The PowerEdge R515 supports DDR3 RDIMMs and UDIMMs. The memory interface uses 1 GB, 2 GB, 4 GB, 8 GB,
and 16 GB (available Q1 2011) RDIMMs and 1 GB, 2 GB, and 4 GB UDIMMs. See Table 9.
Table 9. DIMMS Supported
UDIMM
RDIMM
1GB, DDR3, 1333MHz, single rank
2GB, DDR3, 1333MHz, single rank
2GB, DDR3, 1333MHz, single rank
4GB, DDR3, 1333MHz, dual rank
4GB, DDR3, 1333MHz, dual rank
8GB, DDR3, 1333MHz, dual rank
1GB, DDR3, 1333MHz, single rank, LV
16GB
1
, DDR3, 1333MHz, quad rank
2GB, DDR3, 1333MHz, single rank, LV
2GB, DDR3, 1333MHz, single rank, LV
4GB, DDR3, 1333MHz, dual rank, LV
4GB, DDR3, 1333MHz, dual rank, LV
8GB
1
, DDR3, 1333MHz, dual rank, LV
16GB
1
, DDR3, 1066MHz, quad rank, LV
1
Available Q1 2011
6.3 DIMM Slots
The DDR3 memory interface consists of two memory channels per processor socket. Each channel supports
up to two RDIMMs for single/dual/quad rank or two UDIMMs. Population order is identified by the silkscreen
designator and the System Information Label (SIL) located on the chassis cover.
The following DIMM population rules apply:
Support for DDR3 1333 MHz UDIMMs or 1066/1333 MHz RDIMMs
2 channels, up to 2 DIMMs per channel
Support for 1333 MHz single and dual-rank DIMMs, 1066 MHz quad-rank DIMMs