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Ram Question

  • 01-07-2005 2:42pm
    #1
    TerrorFirmer
    Closed Accounts Posts: 29,930 ✭✭✭✭


    If I have a pc with pc100 ram, can I put a second chip of pc133 ram into it or vice versa?

    /Guess the question is actually would a motherboard that uses pc100 support 133?

    Thanks


Comments

  • #2
    incisor71
    Closed Accounts Posts: 281 ✭✭incisor71


    MobileInfantry wrote:
    /Guess the question is actually would a motherboard that uses pc100 support 133?

    That answer is yes, as long as the motherboard specifications support pc133. If the motherboard does not support the faster RAM, it's not a good idea to use it at all.

    Bear in mind, however, that the performance of the combined memory sticks is directly dependent on the speed of the slowest RAM stick, so you'd be wasting the performance capabilities of the faster RAM.

    Judging by the speeds you mention, it sounds like you're fitting RAM to a not-very-recent motherboard (about 6-7 years old) ... would I be right?


  • #3
    TerrorFirmer
    Closed Accounts Posts: 29,930 ✭✭✭✭TerrorFirmer


    incisor71 wrote:
    That answer is yes, as long as the motherboard specifications support pc133. If the motherboard does not support the faster RAM, it's not a good idea to use it at all.

    Bear in mind, however, that the performance of the combined memory sticks is directly dependent on the speed of the slowest RAM stick, so you'd be wasting the performance capabilities of the faster RAM.

    Judging by the speeds you mention, it sounds like you're fitting RAM to a not-very-recent motherboard (about 6-7 years old) ... would I be right?

    Yep, correct.

    Also, say I already had 256 composed of 2 128s, and had only 2 ram slots.

    Does that mean I couldnt use a new 256 and an old 128 to give me 384?

    OR would I have to go out and buy 2 matching numbers?


  • #4
    airetam_storm
    Closed Accounts Posts: 2,301 ✭✭✭airetam_storm


    No different amounts can be mixed just not diff speeds or timings


  • #5
    TerrorFirmer
    Closed Accounts Posts: 29,930 ✭✭✭✭TerrorFirmer


    airetam_storm wrote:
    No different amounts can be mixed just not diff speeds or timings

    So I can mix 128 pc100 and 256 pc100......What else do I need to know in order to ensure a compatiable mix?

    Can someone tell me this in tecnical terms? As In what else should I be requesting other then "pc100 256 ram" to ensure it works with my other pc100 chip


  • #6
    airetam_storm
    Closed Accounts Posts: 2,301 ✭✭✭airetam_storm


    128/256/512mb of pc100 will be compatible

    As will 128/256/512mb of pc133, but it will only run at pc100 speeds(but leaves good headroom for overclocking)


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  • #7
    J-blk
    Registered Users, Registered Users 2 Posts: 3,906 ✭✭✭J-blk


    As a side note, if you're setting up a 6-7 year old PC (techwise) and your OS will be something like Windows 98/98SE, there are quite a few issues with 384MB of RAM or more.


  • #8
    TerrorFirmer
    Closed Accounts Posts: 29,930 ✭✭✭✭TerrorFirmer


    Thanks for all the great help.

    Hopefully I'll have it running windows 2000. Will prob stick about 384mb into it, no more is really needed. Mobo should be no more then about 5 years sold so hopefully I'm forseeing no problems with that amount of ram.

    Thanks again for the help :)


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