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    Belarc Advisor saying only 2GB of usuable RAM. 4GB is installed.

    Discussion in 'Lenovo' started by PharmD, Aug 19, 2009.

  1. PharmD

    PharmD Notebook Guru

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    I just ran Belarc Advisor and it gives me the following:

    2520 Megabytes Usable Installed Memory

    Slot 'DIMM 1' has 2048 MB (serial number FDFDDA96)
    Slot 'DIMM 2' has 2048 MB


    However, when looking at properties under My Computer it states 4GB (I installed a second stick recently that had the same specs as the original.

    Is this something to be concerned about? Just want to be sure all 4GB are being utilized.
     
    PharmD, Aug 19, 2009
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  2. Tinderbox (UK)

    Tinderbox (UK) BAKED BEAN KING

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    Tinderbox (UK), Aug 19, 2009
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  3. PharmD

    PharmD Notebook Guru

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    Not sure what is going on here but here are two screenshots. I thought maybe it was because I was running 32 bit Vista and had a 256MB ATi GPU but wasn't sure.:

    [​IMG]

    [​IMG]



    Also, (randomly) here was the results for Crystal Disk 160GB 7200 RPM

    Sequential Read : 72.226 MB/s
    Sequential Write : 72.226 MB/s
    Random Read 512KB : 28.663 MB/s
    Random Write 512KB : 32.290 MB/s
    Random Read 4KB : 0.487 MB/s
    Random Write 4KB : 0.820 MB/s

    Test Size : 100 MB
     
    PharmD, Aug 19, 2009
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  4. Tinderbox (UK)

    Tinderbox (UK) BAKED BEAN KING

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    on my system cpu-z says 4096mb in the memory tab, yours says 2520mb ?????

    click on the SPD tab and see how many memory slots , i have 2 , 2gb in each.
     
    Tinderbox (UK), Aug 19, 2009
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  5. PharmD

    PharmD Notebook Guru

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    It is blank under SPD.
     
    PharmD, Aug 19, 2009
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  6. Tinderbox (UK)

    Tinderbox (UK) BAKED BEAN KING

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    Maybe the bios is not seeing all the memory do you have the latest version, what is the exact model number of you notebook , did it come with 4gb or did you upgrade.

    You should run a memory test , the link below is for memtest86+

    http://www.memtest.org/
     
    Tinderbox (UK), Aug 19, 2009
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  7. miner

    miner Notebook Nobel Laureate

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    Its normal, switchable graphics takes ~500MB or so from system RAM and 2520MB is the correct reading for a 32bit OS. Install 64 bit OS and you should see and have access for the 4GB RAM.
     
    miner, Aug 19, 2009
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  8. ed22

    ed22 Notebook Consultant

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    My Computer states the physical installed memory, not the addressable memory. Most probably you have Vista 32-bit. As said by miner, upgrade to Vista 64-bit and all your RAM will be addressable.
     
    ed22, Aug 19, 2009
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  9. User Retired 2

    User Retired 2 Notebook Nobel Laureate NBR Reviewer

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    Yes - use 64-bit OS so it can map all your pci-e devices in 64-bit space. Youl could get more RAM available in < 4GB on a 32-bit OS if you can hack your bios and use a grub2 bootloader module like shown here.
     
    User Retired 2, Aug 19, 2009
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  10. Renee

    Renee Notebook Virtuoso

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    "or so from system RAM and 2520MB is the correct reading for a 32bit OS. Install 64 bit OS and you should see and have access for the 4GB RAM."

    A 32=bit OS will see up to 4 gigabytes depending on how much memory is there. Whether it displays the memory taken by Exec space, is another question.

    Renee
     
    Renee, Aug 20, 2009
    #10