Technical Product Specification

Functional Architecture Intel® Server Board S5520UR and S5520URT TPS
Intel order number E44031-012 Revision 1.9
22
Table 4. 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 5. Memory Running Frequency vs. Memory Population for Intel
®
Xeon
®
5500 series processor
DIMM Type
DIMM
Populated Per
Channel
Memory Running Frequency
(Y/N)
Command/Addres
s 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: 800 MHz, 1066 MHz, or 1333
MHz
RDIMM 1 Y Y N 1N QR Only
All RDIMMs run at 800 MHz or 1066 MHz
when Quad-Rank RDIMM installed in any
channel.
RDIMM 2 Y Y N 1N SR or DR
All RDIMMs run at 800 MHz or 1066 MHz
when two RDIMMs (Single-Rank or Dual-
Rank) installed in the same channel.
RDIMM 2 Y N N 1N QR only
All RDIMMs run at 800 MHz 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 fastest common
frequency of processor IMCs and installed
memory: 800 MHz, 1066 MHz , or 1333
MHz
UDIMM
2
Y
Y
N
2N
SR or DR
All UDIMMs run at 800 MHz or 1066 MHz