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Thread: A Slightly Unusual question about memory ranks

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    A Slightly Unusual question about memory ranks

    Has anyone here tried adding memory with too few ranks to a server?

    The reason that I ask is that getting 16GB quad rank DDR3 RDIMMS is difficult but there are lots of 16GB Dual rank RDIMMS.

    I am guessing that the effect is similar to adding DIMMS that are larger than the chipset supports and so will not work properly.

    I suspect that only 1/2 of the memory will be recognised or the RDIMMs will simply not work at all.

    The problem I have is that my ML330 G6 currently has 48GB of RAM arranged in 3 channels with 9 slots total that can take up to 8 ranks per channel.

    I am nearly out of memory and need to add some more VM's with more memory.

    I don't want to buy any more servers due to space and noise constraints along with wife acceptance.

    HP memory is way too expensive - the server is for a test lab.

    With 16GB Quad rank DIMMS I can go to 96GB RAM which is more than I will need for the foreseeable future.

    With 8GB Dual Rank DIMMS I can go to 72 GB RAM. This may or may not be enough. I don't want to spend a load of money on 8GB DIMMS only to find I have to sell them later to fit 16GB DIMMs.
    "In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship."

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    Re: A Slightly Unusual question about memory ranks

    Quote Originally Posted by badass View Post
    ... I don't want to buy any more servers due to space and noise constraints along with wife acceptance. ...
    Can't help with the actual issue I'm afraid, but this but sounds like a perfect excuse to upgrade to one super-duper newer server It could be smaller, quieter and more power-efficient...!

  3. #3
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    Re: A Slightly Unusual question about memory ranks

    Quote Originally Posted by scaryjim View Post
    Can't help with the actual issue I'm afraid, but this but sounds like a perfect excuse to upgrade to one super-duper newer server It could be smaller, quieter and more power-efficient...!
    And about £1000 before we start talking about RAM

    That has a very low wife Acceptance factor!
    "In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship."

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