DDR3 memory (HP Proliant DL380 G7) Configuration

This sentence below is the background of my question. If you want more information, you can view the details in the table titled "speed chart DIMM slot/ability/busy" in the HP DL380 G7 QuickSpecs here http://h18004.www1.hp.com/products/quickspecs/13595_na/13595_na.html#Memory

I think to add more memory to each host. The resulting configuration of DIMMS will take me to 3 DIMMS per channel essentially lower my max speed of 1333 MHz to 800 MHz DIMMS.

My question is how would I expect the performance with this low speed DIMM? Increased available processor speeds and County base on these models will allow me to support much more VMs on a host but will require my current memory standard for change. Will he suffer performance due to reduced speed DIMM?

Current situation:

2 - DIMM per channel (12-8 GB DIMMS)

1333 MHz

96 GB

Proposed:

3 - DIMM per channel (18-8 GB DIMMS)

actually 800 MHz

144 GB

If I had to guess at this stage, I would say that most low speed channels make the most sense for a virtual environment.

I agree here and given that the processor is suitable for 3 DIMMs per channel that makes sense.

Tags: VMware

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