Technical Product Specification

Intel® Server System SC5650HCBRP TPS Functional Architecture
Revision 1.2
Intel order number E81443-002
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Table 3. Memory Running Frequency vs. Processor SKU
DIMM Type
DDR3 800 DDR3 1066 DDR3 1333
Processor Integrated
Memory Controller
(IMC) Max. Frequency
(Hz)
800
800 800 800
Memory Running Frequency (Hz) =
Fastest Common Frequency of Processor IMC and
Memory
1066
800 1066 1066
1333
800 1066 1333
Table 4. Memory Running Frequency vs. Memory Population
DIMM Type
DIMM Populated
Per Channel
Memory Running Frequency
(Y/N) Command /
Address Rate
Ranks Per DIMM
SR: Single-Rank
DR: Dual-Rank
QR: Quad-Rank
Description
800MHz 1066MHz 1333MHz
RDIMM 1 Y Y Y
1N
SR or DR
All RDIMMs run at the fastest common
frequency of processor IMCs and installed
memory: 800MHz, 1066MHz, or 133MHz
RDIMM 1 Y Y N 1N QR only
All RDIMMs run at 800MHz or 1066MHz when
Quad-Rank RDIMM is installed in any channel.
RDIMM 2 Y Y N 1N SR or DR
All RDIMMs run at 800MHz or 1066MHz when
two RDIMMs (Single-Rank or Dual-Rank) are
installed in the same channel.
RDIMM 2 Y N N 1N QR only
All RDIMMs run at 800MHz when two RDIMMs
(either or both are Quad-Rank RDIMMs) are
installed in the same channel.
UDIMM
w/ or w/o ECC
1 Y Y Y 1N SR or DR
All UDIMMs run at the fastest common
frequency of processor IMCs and installed
memory: 800MHz, 1066MHz, or 1333MHz.
UDIMM
w/ or w/o ECC
2 Y Y N 2N SR or DR
All RDIMMs run at the fastest common
frequency of processor IMCs and installed
memory: 800MHz, 1066MHz, or 133MHz