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247 Mb Ram

Discussion in 'Other Hardware' started by jdmnino, Feb 17, 2008.

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  1. jdmnino Newcomer, in training

    On my dell laptop, the FSB : DRAM ratio is 1:2, is that good or bad? Can you explain that better for me. Im a little confused on this ratio thing and what it means.
    jdmnino, Feb 18, 2008
    #21

  2. Matthew TechSpot Editor, Community Manager

    199.5MHz (your current RAM's frequency) x 4 (the data is quad pumped) and it is running at 1:1 with the FSB = a throughput of 798MHz. So, the new RAM is slower than the old RAM.

    *Edit*

    Well, while DDR2 RAM is technically running at a frequency such as 199.5MHz it is running at a theoretical 798MHz (due to improvements in the technology) and has a data throughput of 798MHz so people just refer to it as operating at this frequency even though it isn't. For information on FSB:RAM ratios go read up on the Front Side Bus, Memory Bus and North Bridge.
    Matthew, Feb 18, 2008
    #22

  3. jdmnino Newcomer, in training

    So the system will be running slower than it already is?
    jdmnino, Feb 18, 2008
    #23

  4. Matthew TechSpot Editor, Community Manager

    The RAM will be operating at a lower frequency thus having a lower throughput. You're better off having the extra 768MB of RAM though. You should still notice an improvement in overall system performance.

    I'll be stepping away from the PC for about 10-20 minutes...
    Matthew, Feb 18, 2008
    #24

  5. jdmnino Newcomer, in training

    Well I appreciate all your help, I'll will give you an update once it is installed and let you know how it is operating.
    jdmnino, Feb 18, 2008
    #25

  6. Matthew TechSpot Editor, Community Manager

    No problem, good luck with everything..
    Matthew, Feb 18, 2008
    #26

  7. jdmnino Newcomer, in training

    So I have the 1g, can I put that together with the 256mb or do I have to install it separately?
    jdmnino, Feb 28, 2008
    #27

  8. Matthew TechSpot Editor, Community Manager

    Some motherboard's can be finicky about mixing RAM modules, but I hardly ever come across a situation where I can't install two mixed capacities/frequencies.

    Be aware that if each RAM is operating at a different frequency, your motherboard will automatically run all modules at the slowest speed.

    I didn't want to reread this entire thread, so if this isn't the case sorry :p.
    Matthew, Feb 28, 2008
    #28

  9. Tedster Techspot old timer.....

    please read the ram guide in the GUIDES forum.
    Tedster, Feb 28, 2008
    #29
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