Unsure about overclocking, could use some pointers

By Bluemouse
May 2, 2011
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  1. Hi all,

    I have a new machine that I built, and I'm trying to overclock it but I'm a bit unsure of what to do exactly, what is safe, and how much I can go with my specific hardware.

    PSU: 700W Stealthmaster
    CPU: i5 2500K
    Mobo: MSI G43

    http://ncix.com/products/?sku=60177&vpn=2500K & P67A-G43&manufacture=Bundle Deals


    Ram: G.SKILL Ripjaws X F3-12800CL9D-4GBXL 4GB 2X2GB DDR3-1600 CL9-9-9-24 Memory
    http://ncix.com/products/?sku=57952

    Graphics Card: HIS 2GB Radeon 6950 (I'll unlock the shaders on this separately)

    What are the things I need to change in my bios? I'm currently using the stock heatsink, so I don't necessarily want to go too high on the overclocking. What can I do with the multiplier?

    Thanks for any help!

    Cheers
  2. hellokitty[hk]

    hellokitty[hk] I'm a TechSpot Evangelist Posts: 4,317   +116

    You can do whatever you want, but for overclocking, you should increase it.

    You don't "need" to change anything; but if you're overclocking, then you'll have to.

    I'd guess you can go up to ≈4.5ghz max, probably less.
  3. Bluemouse

    Bluemouse Newcomer, in training Topic Starter Posts: 405

    Right, what i mean is, what do I change ;)
  4. hellokitty[hk]

    hellokitty[hk] I'm a TechSpot Evangelist Posts: 4,317   +116

    You can increase the multiplier, I said that already I think.
    I'd think you could start off at 40x with vcore < 1.3v without trouble.
  5. fimbles

    fimbles TechSpot Evangelist Posts: 1,229   +119

    Stolen from custom pc magazine :)

    Set Cpu multiplier to x45

    Enable extreme load line calibration

    Set cpu voltage to 1.39v

    Set the cpu pll to 1.9v

    Set the vccsa to 1.1v

    set the vccio to 1.10625v

    Save and restart.

    This will give you 4.5 ghz, which is a safe everyday level according to the article.

    Be sure your cooling is up to scratch, Run a benchmark and keep an eye on temps.

    Hope this helps. :)


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