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Thread: 3 sticks of memory

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    3 sticks of memory

    Noob question:
    I have a DFI Lan Party NF3 250Gb Socket 754 with a Sempron. I used to have 2 sticks of 512Mb DDR400 and just bought a third stick of 512Mb. However only two of the sticks are recognised in Windows (Cpu-z sees 3 alright), i.e. 1024 Mb only available even tho 3 sticks are in.

    Now the motherboard manual says it can support up to 2Gb for DDR400 and up to 3Gb for DDR333. So is it right that I can only use two sticks of DDR400 only? Any help appreciated.

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    • teachmech's system
      • Motherboard:
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    I think all 3 slots filled means the memory needs to be drop to 333 mhz speed for them to work. I seem to remember reading this somewhere. Try adjusting the memory to 333 in your bios and see if windows now see all of it.

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    This could be a processor limitation, s754 chips don't like 3 sticks of ram.
    Try setting to 333 in bios like teachmech said, or if you want more than 1gb of 400 you'll have to get 2x1gb sticks.

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    Thanks for the replies. I have tried the suggestions of lowering the memory speed.

    Funny thing is that it wont post with 3 sticks AND if I force a lower memory speed (It will post with 3 sticks at DDR400 but will only recognise 2 sticks OR it will post with 2 sticks at a lower speed). I think I will just have to use 2 sticks and keep the third one for the spare machine I am building up.

    Cheers.

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