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E8400 Overclock to 4.00

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  • #16
    Re: E8400 Overclock to 4.00

    seeing you have the EO stepping you should be able to get 4.0ghz out of it. its just some small minor tweaking to get it there.3.82ghz to 4.0ghz. your not gonna notice the small amount you gain from the higher oc. ive ran my E8400 CO at 3.80ghz now for over a year at that speed and have no issues what so ever.. other than braggin rights no need it burning the chip up, unless ya want a new one...lol once again its just my 2cents...
    GA-EP45-UD3P 1.6rev
    Q9550 @ 451x8.5 3.83ghz SLB8V 1.296 vcore in bios
    Batch #L846B715
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    All housed in the Big Red Hemi
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    Burners=
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    Lite-on IHAS324-9-A x2

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    • #17
      Re: E8400 Overclock to 4.00

      I actually got good preformance boosts all the way up to 4.0Ghz. I ran benchmarks and tests from 3.6Ghz up. It wasn't until I went higher then 4.0Ghz, that the gains became minimal per clock cycle.

      I was able to run 4.25Ghz stable with a 2.0D Strap and a vcore of 1.348V Full Load. But considering the minimal gain and the cpu 10C hotter full load then compared to 4.0Ghz. I didn't feel it was worth it.

      Just a heads up. for me, At 3.6Ghz ( 3Dmark06 : 16,800 ) At 4.0Ghz ( 3Dmark06 : 18,000 ) *this is with a GTX285
      I got a GPU score of 12,000+ in Vantage @ 4.0Ghz

      4.0Ghz seems to be the sweet spot with this chip. Atleast the E0 revision.
      Last edited by Triton05; 07-07-2010, 12:57 PM.
      ASUS P8P67 rev3.1 | i5 2500K @ 4.5Ghz | Vcore: 1.300
      MSI 460GTX Hawk Talon Attack (900/4000) | 23C Idle / 65C max load / +100mV
      Kingston HyperX | DDR3 1600Mhz | Corsair H60 | 36C Idle / 65C max load
      500GB Seagate Barracuda 7200rpm| OCZ 600watt SXS PSU
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      3DMark11 P4560

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      • #18
        Re: E8400 Overclock to 4.00

        Thanks to everyone who replied. I think im gonna leave it to 3.82 for now and then, when I have more time try to push to 4.0. I think I may have been running vcore too low to hit 4.0 because I didnt try over 1.328. I still got a little headroom til I get 1.365

        So thanks to everyone, you have been so helpfull.
        Gigabyte EP45-UD3R Rev 1.1 Bios F12
        Intel Core 2 Duo E8400 @ 4.005
        Antec 902 Case w/ Corsair hx520w
        Gigabyte GTX460 1GB
        Corsair Dominator PC-8500 2X2 GB

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        • #19
          Re: E8400 Overclock to 4.00

          Originally posted by Triton05 View Post
          Intel rates the max " safe " voltage to this chip at 1.36v.

          You could probably set it to 1.4v in the bios with LLC enable. The vdroop should drop it to around 1.36v to the chip. Id say thats the max to be safe.
          Incorrect, just so everyone knows. Intel's rated Max Vcore is 1.45 for these CPU's, see page 17
          http://download.intel.com/design/processor/datashts/318732.pdf


          What you refer to is MAX VID, which means the maximum voltage a CPU will leave the factory using for spec speeds.

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