Intel BB5520UR User Manual

Intel® Server Boards S5520HC, S5500HCV, and S5520HCT TPS Functional Architecture
Revision 1.8
Intel order number E39529-013
31
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 process
o
IMCs and installed memory:
800MHz, 1066MHz, or 133MH
z
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) ar
e
installed in the same channel.
RDIMM 2 Y N N 1N QR only
All RDIMMs run at 800MHz wh
e
two RDIMMs (either or both ar
e
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 process
o
IMCs and installed memory:
800MHz, 1066MHz, or
1333MHz.
UDIMM
w/ or w/o
ECC
2 Y Y N 2N SR or DR
All UDIMMs run at 800MHz or
1066MHz when two UDIMMs
(Single- or Dual-Rank) are
installed in the same channel.
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.

Intel BB5520UR Specifications

General

Brand	Intel
Model	BB5520UR
Category	Server Board
Language	English