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Chapter 5: Advanced Serverboard Setup
5-13
LRDIMM Memory Support
Ranks Per
DIMM & Data
Width (Note 1)
Memory Capacity
Per DIMM (Note 2)
Speed (MT/s) and Voltage
Validated by Slot Per
Channel (SPC) and DIMM
Per Channel (DPC) (Notes
3, 4, 5, 6)
2 Slots Per Channel
1DPC/2DPC
1.35V 1.5V
QRx4 (DDP)
(Note 7)
16GB 32GB 1066 1066, 1333
QRx8 (P)
(Note 8)
8GB 16GB 1066 1066, 1333
Notes:
1. Physical Rank is used to calculate DIMM capacity.
2. Command Address Timing is 1N.
3. Only 2Gb/4Gb DRAMs are supported and validated.
4. The speeds listed are estimated only and will be verifi ed through
simulation.
5. Please refer to the ES-4600 Platform Design Guide for memory
population rules.
6. For 3SPC/3DPC-Rank Multiplication (RM) is >=2.
7. DDP is for Dual Die Package DRAM stacking.
8. "P" Means "Planer Monolithic DRAM Die."
Notes and Restrictions
• For the memory modules to work properly, please install DIMM modules in pairs
(with an even number of DIMMs installed).
• All channels in a system will run at the fastest common frequency.