Datasheet
Functional Description
58 Intel
®
Xeon
®
Processor 5600 Series Datasheet Volume 2
3.2 Supported RDIMM Memory Configurations
3.2.1 RDIMM 1.5 V Configurations
Notes:
1. The Intel Xeon processor 5600 series supports all Intel Xeon
processor 5500 series memory configurations.
2. Any combination of x4 and x8 RDIMMs, with 1Gb, 2Gb, or 4Gb DRAM density, is supported.
3. Populate DIMMs starting with slot 0, furthest from the CPU.
RAS - Sparing Channel Support No Yes. Channel 2 can be used as a spare for
channels on the same socket. All channels
must be identically populated. Not
supported when in Lockstep Mode
RAS - Mirroring Channel Support Yes. Between Ch 0 and Ch 1 of the same
socket. Ch2 may not be populated. Not
with lockstep.
Yes. Between Ch 0 and Ch 1 of the same
socket. Ch2 may not be populated. Not
with lockstep.
RAS - Demand and Patrol Scrubbing Yes
RAS - SDDC (Single Device Data
Correction) Support
RDIMMs: x4 SDDC in Independent Channel Mode; x8 SDDC in Lockstep Mode.
UDIMM w/ECC: x8 SDDC in Lockstep Mode with x8 UDIMMs only
Active Powerdown Per rank for up to 4 ranks. Ranks share CKE for >4 ranks
Precharge Power Down Per rank. No support for turning off DRAM DLLs
Self Refresh In Package C3, C6 states and during S3
Clocks off in Package Cstates Yes - C3, C6
Memory Init RDIMMs: Yes
UDIMMs: When ECC DIMMs are present
Memory Test Yes when ECC DIMMs are present.
Poisoning Yes
Notes:
1. x16 DRAM is not supported on RDIMM/UDIMM combo design.
Table 3-2. RDIMM (1.5 V) Support
DIMM Slots per
Channel
DIMMS
Populated per
Channel
DIMM Type POR Speeds
Ranks per DIMM (any
combination)
21
Reg. DDR3 ECC 800, 1066, 1333 SR or DR
21
Reg. DDR3 ECC 800, 1066 QR only
22
Reg. DDR3 ECC 800, 1066, 1333 Mixing SR, DR
22
Reg. DDR3 ECC 800 Mixing SR, DR, QR
31
Reg. DDR3 ECC 800, 1066, 1333 SR or DR
31
Reg. DDR3 ECC 800, 1066 QR only
32
Reg. DDR3 ECC 800, 1066, 1333 Mixing SR, DR
32
Reg. DDR3 ECC 800 Mixing SR, DR, QR
33
Reg. DDR3 ECC 800 Mixing SR, DR
Table 3-1. Integrated Memory Controller Feature Comparison (Sheet 2 of 2)
Feature Intel
®
Xeon
®
Processor 5500 Series Intel
®
Xeon
®
Processor 5600 Series