RAM questions

By elemire
Jan 21, 2009
  1. I have a 7750 AMD cpu.
    Currently have 1 x 2gb of 667 Ram
    Should I add 1 x 2gb of 800 or 2 x 1gb 800?
    Will it access the 800 first if I put them in the correct slots on my mobo? Mobo has 4 Dimms.

    Running 32 bit XP so 4gb max.
  2. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Of varied speed differences of installed Ram
    A computer will always work off the slowest speed only

    Therefore always use the same speed Ram (and ideally the fastest available)
    Go to your Motherboard or computer's manufacture support page, to find out what the maximum Ram speed is available for your system

    Always try to use the same Ram in all slots
  3. klepto12

    klepto12 TechSpot Paladin Posts: 1,115   +9

    i would get a 4GB kit (2GBx2GB) of ddr2 800 ram. costs like $45 on newegg. I wouldn't advise mixing ram with different speeds and brands can cause instability in some cases always match the ram with the same brand and speed.
  4. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Sounds good
    A waste
    But good :grinthumb

    Oh, by the way, even though your motherboard can support 4Gig
    And Xp can see 3 Gig
    And you can edit it to see 4Gig

    Xp (32bit) can only use 2Gig Max, any more than that is not used

    Happy buying :grinthumb
  5. raybay

    raybay TS Evangelist Posts: 7,241   +9

    Just so you know, if this is a WXP machine, you will be able to access only about 3.0 or 3.4 or 3.5 GB of the available memory... depending on the motherboard setup.
  6. klepto12

    klepto12 TechSpot Paladin Posts: 1,115   +9

    But for the price 4gb is much better deal and you still have over 3gb ram so everyone is happy. Note you can edit XP to see the 4GB but it will use about 3.5gb at most but still a step up from what you have man.
  7. raybay

    raybay TS Evangelist Posts: 7,241   +9

    And when you upgrade to Windows 7, you can use all 4 GB
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