Technical Product Specification

Intel® Server Board S5520UR and S5520URT TPS Functional Architecture
Revision 1.9 Intel order number E44031-012
19
3.2 Memory Subsystem
3.2.1 Intel
®
QuickPath Memory Controller
The Intel
®
Xeon
®
Processor 5500 Series and Intel
®
Xeon
®
Processor 5600 Series have an
integrated memory controller in its package. The Intel
®
QuickPath Memory Controller supports
DDR3 800, DDR3 1066, and DDR3 1333 memory technologies.
The memory controller supports both registered DIMMs (RDIMMs) and unbuffered DIMMs
(UDIMMs). The presence of a single non-ECC UDIMM results in the disabling of
ECC functionality.
The Channel Independent mode is the only memory RAS mode that supports non-ECC DIMMs.
DIMMs with different timing parameters can be installed on different slots within the same
channel. But timings that support the slowest DIMM are applied to all.
As a consequence, faster
DIMMs are operated at timings supported by the slowest DIMM populated.
The same interface
frequency is applied to all DIMMs on all channels.
3.2.1.1 Supported Memory
The Intel
®
Server Board S5520UR, S5520URT supports six DDR3 memory channels (three per
processor socket) with two DIMMs per channel, thereby supporting up to 12 DIMMs with dual-
processor sockets with a maximum memory capacity of 192 GB.
 The Intel
®
Xeon
®
Processor 5500 Series on the Intel
®
Server Board S5520UR,
S5520URT supports up to 12 DDR3 DIMMs with 1.5 V and a maximum of 192 GB
memory capacity.
 The Intel
®
Xeon
®
Processor 5600 Series on the Intel
®
Server Board S5520UR,
S5520URT supports up to 12 DDR3 DIMMs with 1.5 V or 1.35V and a maximum of 192
GB memory capacity.
 Intel
®
Server Board S5520UR, S5520URT supports Registered DDR3 DIMMs (RDIMMs),
and ECC Unbuffered DDR3 DIMMs (UDIMMs).
o Mixing of RDIMMs and UDIMMs is not supported.
o Mixing memory type, size, speed and/or rank on this platform has not been
validated and is not supported on the Intel
®
Xeon
®
Processor 5500 Series
o Mixing memory vendors is not supported on this platform by Intel
®
o Non-ECC memory is not supported and has not been validated in a server
environment
 The Intel
®
Xeon
®
Processor 5500 Series on the Intel
®
Server Board S5520UR,
S5520URT supports the following DIMM and DRAM technologies:
o RDIMMs:
– Single-, Dual-, and Quad-Rank
– x 4 or x8 DRAM with 1 Gb and 2 Gb technology - no support for 2 Gb
DRAM based 2 GB or 4 GB RDIMMs
– DDR3 1333 (Single- and Dual-Rank only), DDR3 1066, and DDR3 800
o UDIMMs: