Installing RAM, please help!

Discussion in 'PC hardware help' started by Squall11, Apr 2, 2010.

  1. Squall11

    Squall11 Member

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    I have a dell dimension 8200 which is running on windows XP at the moment.

    I have a CD which can upgrade it to windows 7, but i can't install windows 7 because it says my pc doesn't have enough RAM.

    My RAM is currently 256MB and it needs to be at least 512MB. I found some spare RAM modules lying around which are 512MB but when i tried to install them, they didn't physically fit in because there was only one gap in the bottom whereas i need a module with 2 gaps.

    I have 4 RAM slots and i think i have 2x 128MB modules and 2xblank modules.

    I'm planning on buying some new RAM modules but how do i know whether this module is going to fit or whether it won't fit in like the ones i already have?

    Also, do i have to install the new RAM modules in pairs? Because i've read sometimes you have to and sometimes you don't?

    Please help!

    Thanks
     
  2. ddp

    ddp Moderator Staff Member

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  3. Squall11

    Squall11 Member

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    Okay thanks a lot. If the memory banks are 2 slots of 2, and I already have 2x 128mb modules. In what order to I have to put in the new memory modules? Do I put the two pairs together? Or I do mix and match them?

    Also, I've read that the RAM operates at the slowest one, is this true? Because I have 2x 128mb modules and I want to buy 2x 512mb modules. If I have all 4 in, will this be slower than if I only had 2x 512mb in?

    Thanks
     
  4. ddp

    ddp Moderator Staff Member

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    have to be 2 the same as in same speed & capacity. will run at slowest ram speed. time the load speed with 1.2gig of ram & with 1gig of ram before installing win7 as most likely won't see any real time difference. if install win7 then keep the 2-128meg with the 2-512meg as will help a bit. what is your cpu speed?
     

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