Table 3. Memory Running Frequency Vs. Processor Sku; Table 4. Memory Running Frequency Vs. Memory Population - Intel BB5520UR Technical Product Specification

Intel® Server Boards S5520HC, S5500HCV, and S5520HCT TPS

Table 3. Memory Running Frequency vs. Processor SKU

800
Processor Integrated
Memory Controller
1066
(IMC) Max.
Frequency (Hz)
1333

Table 4. Memory Running Frequency vs. Memory Population

DIMM
DIMM Type Populated
Per Channel
RDIMM 1 Y
RDIMM 1 Y
RDIMM 2 Y
RDIMM 2 Y
UDIMM
w/ or w/o 1 Y
ECC
UDIMM
w/ or w/o 2 Y
ECC
1N: One clock cycle for the DRAM commands arrive at the DIMMs to execute.
2N: Two clock cycles for the DRAM commands arrive at the DIMMs to execute.
Revision 1.8
DDR3 800 DDR3 1066
800 800
800 1066
800 1066
Memory Running Frequency
(Y/N)
800MHz 1066MHz 1333MHz
Y Y
Y N
Y N
N N
Y Y
Y N
Intel order number E39529-013
DIMM Type
DDR3 1333
800
1066
1333
Ranks Per DIMM
Command/
SR: Single-Rank
Address
DR: Dual-Rank
Rate
QR: Quad-Rank
1N SR or DR
1N QR only
1N SR or DR
1N QR only
1N SR or DR
2N SR or DR
Functional Architecture
Memory Running Frequency
(Hz) = Fastest Common
Frequency of Processor
IMC and Memory
Description
All RDIMMs run at the fastest
common frequency of processo
IMCs and installed memory:
800MHz, 1066MHz, or 133MHz
All RDIMMs run at 800MHz or
1066MHz when Quad-Rank
RDIMM is installed in any
channel.
All RDIMMs run at 800MHz or
1066MHz when two RDIMMs
(Single-Rank or Dual-Rank) are
installed in the same channel.
All RDIMMs run at 800MHz whe
two RDIMMs (either or both are
Quad-Rank RDIMMs) are
installed in the same channel.
All UDIMMs run at the fastest
common frequency of processo
IMCs and installed memory:
800MHz, 1066MHz, or
1333MHz.
All UDIMMs run at 800MHz or
1066MHz when two UDIMMs
(Single- or Dual-Rank) are
installed in the same channel.
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