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Thread: Advice on overclocking my i7 875k on an Intel DP55SB

  1. #1
    Xtreme Enthusiast
    Join Date
    Dec 2003

    Advice on overclocking my i7 875k on an Intel DP55SB

    Just after some help really, I'm looking to get the best out of my setup and am struggling with the BIOS on my Intel DP55SB. I don't understand how each of the features affect other aspects of other features.

    I'm not a total noob to the overclocking scene but this board is really awkward in my hunt for a decent 24/7 overclock.

    I'll grab some screenshots of the BIOS a little later as I'm currently using said machine, but in the meantime does anyone have any tips on overclocking an 875k in general? I had it running @ 24x160 on 4,3,2, cores and 25x160 on 1 core @ 1.3V. I had weird issues running a 10x multi so now its currently its running at 18x200 on all cores with a 8x multi and all is fine @ 1.3V. The QPI link is now at a much better 3.6GHz which I'm happy with. I'm hoping to get 4GHz on all cores and maybe a higher speed when running on 1 or 2 cores.

    My setup:

    Intel DP55SB
    i7 875k
    Antec Kuhler 620 with 2x yate loon D12SH-12 fans (push/pull)
    16GB (4x4GB) of Kingston DDR3 LoVo 1600MHz @ 1.35V
    Sapphire 7950 @ 1GHz/1.25GHz (core/mem)
    120GB OCZ vertex II SSD
    1TB Samsung HDD
    620W OCZ 80+ bronze PSU
    All housed in a Silverstone PS07 with two Enermax 120mm TB silence fans on the front intake.

  2. #2
    Xtreme Owner Charles Wirth's Avatar
    Join Date
    Jun 2002
    Las Vegas
    The 875K... well at least it is unlocked and allows higher memory ratios and reducing latency should yield some performance increase.
    Intel 9990XE @ 5.1Ghz
    ASUS Rampage VI Extreme Omega
    GTX 2080 ti Galax Hall of Fame
    64GB Galax Hall of Fame
    Intel Optane
    Platimax 1245W

    Intel 3175X
    Asus Dominus Extreme
    GRX 1080ti Galax Hall of Fame
    96GB Patriot Steel
    Intel Optane 900P RAID



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