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2 x 2GB + 2 x 1GB compatibility?

Hey guys, I'm going to be upgrading to windows 7 home premium or professional (64-bit) from xp home premium and I was thinking i'd be needing more RAM as windows 7 is more RAM intensive than XP.

My system is:
Athlon II X4 620 @ 3.2GHz
Gigabyte GA-MA78GM-US2H mobo
2 x 2GB Corsair XMS2 Twin pc6400 C5
OCZ 600W Modular PSU.
Hitachi Deskstar 500GB HDD
9600GT

My motherboard can only run ddr2 ram, but it's so expensive now and I don't want to be spending a lot on RAM, so i only want 2 x 1GB sticks. Will this work with my other RAM & motherboard, as long as i pair them properly in the slots?

thanks in advance, cheers
2 answers Last reply Best Answer
More about compatibility
  1. YEp - just be sure to get modules that are rated the same voltage and either the same or better timings and latencies as the old modules ( all of the modules on a system can only run at a single voltage and the timings are also set universally so the new modules must match or better the old ones in order to run at the proper settings without issues!!)
  2. Best answer
    Hi.

    This are the requirements for Window 7

    Windows 7 system requirements
    If you want to run Windows 7 on your PC, here's what it takes:

    1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor

    1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)

    16 GB available hard disk space (32-bit) or 20 GB (64-bit)

    DirectX 9 graphics device with WDDM 1.0 or higher driver

    Additional requirements to use certain features:

    Internet access (fees may apply)

    Depending on resolution, video playback may require additional memory and advanced graphics hardware

    Some games and programs might require a graphics card compatible with DirectX 10 or higher for optimal performance

    For some Windows Media Center functionality a TV tuner and additional hardware may be required

    Windows Touch and Tablet PCs require specific hardware

    HomeGroup requires a network and PCs running Windows 7

    DVD/CD authoring requires a compatible optical drive

    BitLocker requires Trusted Platform Module (TPM) 1.2

    BitLocker To Go requires a USB flash drive

    Windows XP Mode requires an additional 1 GB of RAM and an additional 15 GB of available hard disk space.

    Music and sound require audio output

    Product functionality and graphics may vary based on your system configuration. Some features may require advanced or additional hardware.


    So, IMO you don't need spend money to add more RAM, with the 4GB that you currently have is enough. I'm running Win 7 ultimate x64 with 4GB without problems.
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