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RAM for AMD Athlon 64 X2 3800+

At the moment my PC uses 2 RAM sticks of 1 GB DDR2(frequency 400 Mhz).
I want to replace those with with 2 RAM sticks of 2GB DDR2 (frequency 800 Mhz), to be specific, i want 2 units of these:
G.SKILL 2 GB DDR2-800, F2-6400CL5S-2GBNT

If it matters, i am using windows XP SP 3 and my motherboard is AX78 from abit

My question is:
Are those RAM units compatible with my CPU? To be specific, can my CPU fully handle those RAM units to the full extend? Can it handle the frequency of the new RAM units?
5 answers Last reply Best Answer
More about ram amd athlon 3800
  1. It's more a question of motherboard compatibility. What motherboard do you have?

    -Wolf sends
  2. Wolfshadw said:
    It's more a question of motherboard compatibility. What motherboard do you have?

    -Wolf sends


    my motherboard is a AX78 from abit, i am pretty sure it can handle those RAM units, but i actually wanted to ask if my CPU can handle properly the frequency of the new units (if it can use then to the full extend), i should have made that clear, i will try to edit my question
  3. Yes, you can use 2x2GB DDR2-800 RAM modules with that motherboard. Your motherboard can actually accept up to DDR2-1066 RAM, but only if you have an AM2+ processor. Give that the motherboard only accepts DDR2-800/1066, I suspect you actually already have DDR2-800 RAM installed.

    Assuming this is your board

    -Wolf sends
  4. Wolfshadw said:
    Yes, you can use 2x2GB DDR2-800 RAM modules with that motherboard. Your motherboard can actually accept up to DDR2-1066 RAM, but only if you have an AM2+ processor. Give that the motherboard only accepts DDR2-800/1066, I suspect you actually already have DDR2-800 RAM installed.

    Assuming this is your board

    -Wolf sends


    When i checked the specs for my motherboard i was confused aswell when it says it only accepts ddr2-667 upwards, but i checked with CPU-Z, and it really does work with DDR2-400, i can send you screenshots if you want.
    Anyway, i know that there is a correlation between RAM frequency and the CPU, so i really want to make sure that my AMD Athlon 64 X2 3800+, can handle those RAM unites before i spend money on them. So can my CPU handle those units properly? Im sorry that i harper so much on that, but i really want to be 100% sure.
  5. Best answer
    I think you're referring to the old Front Side Bus speeds which are irrelevant these days. The CPUs memory controller will utilize whatever speed RAM is available.

    -Wolf sends
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