Quad-core RAM

By Trake ยท 5 replies
Mar 10, 2007
  1. Hi all, I'm just starting to look at building my first quad-core rig and I'm wondering what the best mobo/RAM combo is. For mobo I was thinking eVGA 680i but I'm not sure which RAM is best to use with that and a QX6700.
    The obvious choice is Dominator, but then what speed? I've seen:
    PC2-8888C4, PC2-9136C5, PC2-10000 but then I've also seen WaterCooled OCZ PC2-9200.
    I will be overclocking, and using the rig for gaming.
    Thanks in advance.

  2. raybay

    raybay TS Evangelist Posts: 7,241   +10

    That board will take one type of the following... just be sure whatever memory you use is identical: DDR2 533, 667, 800, or 1200 MHz. Use an NVidia chipset video graphics card. Since it offers a front side bus of either 1066 or 1333, you should have few limits on what you can use. Just use quality memory, and preferably matched or identical modules.
  3. Tedster

    Tedster Techspot old timer..... Posts: 6,002   +15

    before you buy the ram, buy the motherboard, then buy ONLY the types and specs it recommends.
  4. Trake

    Trake TS Rookie Topic Starter

    :eek: Thanks for that advice, but I was sort of meaning which would be fastest/give the best performance.
  5. MetalX

    MetalX TechSpot Chancellor Posts: 1,388

    There isn't much of a noticeable performance difference when using RAM faster than 800MHz. In fact most benchmark programs barely record a difference. This is because at 800MHz, the timings can still be fairly low, but above 800, the timings start to get crazy (5-5-5-15 or sometimes 5-5-5-18) and it reduces the speed of the ram so that while it may be 1000 MHz, it is running more slowly than 800MHz at 3-4-4-12 or something. (These timings are hypothetical, I don't know what usual timings for DDR2-800 are :(... what happened to good old 2-2-2-5 DDR400? :))
  6. Tedster

    Tedster Techspot old timer..... Posts: 6,002   +15

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