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    RAM manufacturer...

    Discussion in 'Acer' started by ttomorad, Jan 10, 2008.

  1. ttomorad

    ttomorad Notebook Consultant

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    ...of the memory in 7720G?
     
    ttomorad, Jan 10, 2008
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  2. schoko

    schoko Custom User Title

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    who should know this ? several different manufacturers could be possible.

    you can find out yourself if you download the latest version of everest ultimate (ver. 4.20). this little proggie let´s you look deep into your computer without opening it.
    if you are interested you can download the trial version from the lavalys homepage
     
    schoko, Jan 10, 2008
    #2
  3. TeeJay 44

    TeeJay 44 Notebook Deity

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    Go here: http://www.gtopala.com/

    Download and run this great utility. It will tell you everything you need to know about your computer.

    Cheers,
    Theo
     
    TeeJay 44, Jan 10, 2008
    #3
  4. ttomorad

    ttomorad Notebook Consultant

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    Thanks guys! I downloaded both programs and they showed me everything I wanted to see. It looks like I have Samsung modules installed, but they work at 333Mhz, not at 667Mhz what the manual says, that's just an effective speed. So here's my question... I have a little problem with DPC latency's, so I'm wondering if those would go away if I buy faster RAM? Bus speed of my CPU is 800Mhz so I was thinking of buying 800Mhz memory. Does Aspire 7720G support 800Mhz RAM?
     
    ttomorad, Jan 11, 2008
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  5. jeujeubean

    jeujeubean Newbie

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    the reason your ram is displaying at 333MHz and not 667 is that it is dual channel, so each channel of the ram runs at 333MHz which is about 667MHz (333 X 2)
    although I do not know the answer to your other part of the question sorry
     
    jeujeubean, Jan 12, 2008
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  6. Evolution

    Evolution Vox Sola

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    Actually dual channel has nothing to do with that...It is the architecture of DDR ram that causes that. DDR or double data rate memory transfers data on the rising and falling edges of the bus clock signal. Therefore you then multiply 333mhz by 2 to get to 667mhz as you pointed out :).

    Dual channel on the other hand doubles the data throughput from ram to the memory controller thus allowing the memory controller to utilize two 64bit data channels essentially resulting in a 128bit data channel.
     
    Evolution, Jan 13, 2008
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  7. powerpack

    powerpack Notebook Prophet

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    Faster RAM will not solve your Deferred Procedure Call problem, it is likely a driver issue. If your System has Intel mobile CPU you cannot run your RAM at 800Mhz, your memory bus is 667Mhz. But as said not a RAM issue anyway.
     
    powerpack, Jan 13, 2008
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  8. ttomorad

    ttomorad Notebook Consultant

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    Thanks guys! I just thought I could run at 800Mhz because my CPU bus is 800Mhz... So, this situation with RAM running at 333Mhz is normal, or a different type of memory would run at 667Mhz? I'm a little confused...
     
    ttomorad, Jan 13, 2008
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