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Thread: undervolting i5 2500k

  1. 06-22-2012 #1
    good223
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    Default undervolting i5 2500k

    Hi, I'm wondering if I undervolted my 2500k with my Gigabyte Z68AP-D3 with bios version FD correctly.

    So far I have set "internal CPU PLL overvoltage" to disable, have set "cpu vcore" to normal, and changed "dynamic vcore" to -0.175v.
    Everything else is at default settings.
    CPU-Z reports 0.720v @ idle and 1.032v @ full load.

    Is what I have done the proper/safe/best way to undervolt my cpu?

    Thanks!
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  2. 06-22-2012 #2
    wazza300's Avatar
    wazza300
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    Default Re: undervolting i5 2500k

    thats the best way,dvid will reduce load voltages,it will also lower idle voltages very slightly
    Gigabyte z77x UP4-TH F11a Bios
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  3. 06-23-2012 #3
    good223
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    Default Re: undervolting i5 2500k

    Quote Originally Posted by wazza300 View Post
    thats the best way,dvid will reduce load voltages,it will also lower idle voltages very slightly
    Awesome. Thanks for letting me know!
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  4. 06-24-2012 #4
    good223
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    Default Re: undervolting i5 2500k

    I'm also curious, can i lower other voltages in the bios?

    Like "CPU PLL", "graphics core", or "qpi/vtt voltage"?
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  5. 06-24-2012 #5
    good223
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    Default Re: undervolting i5 2500k

    I'm also wondering, can I lower other voltages in the bios by changing them from auto to a specific voltage?

    Like "CPU PLL", "graphics core", or "qpi/vtt voltage"?
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  6. 06-24-2012 #6
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    wazza300
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    Default Re: undervolting i5 2500k

    aslong as your pc remains 100% stable full load,then you can use as little voltages as possible
    Gigabyte z77x UP4-TH F11a Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-11-11-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Farcry3 Video!!!!!!!!!!!!!!!!!!!!!!
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  7. 06-24-2012 #7
    Acebmxer's Avatar
    Acebmxer
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    Default Re: undervolting i5 2500k

    Quote Originally Posted by good223 View Post
    I'm also wondering, can I lower other voltages in the bios by changing them from auto to a specific voltage?

    Like "CPU PLL", "graphics core", or "qpi/vtt voltage"?
    Quote Originally Posted by wazza300 View Post
    aslong as your pc remains 100% stable full load,then you can use as little voltages as possible
    Like wazza said as long as your system is still stable keep lowering votages. You should be testting your system with LinX or IBT or Prime95 to make sure the system is stable at full load.
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  8. 06-24-2012 #8
    good223
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    Default Re: undervolting i5 2500k

    Quote Originally Posted by Acebmxer View Post
    Like wazza said as long as your system is still stable keep lowering votages. You should be testting your system with LinX or IBT or Prime95 to make sure the system is stable at full load.
    So generally "auto" will set the voltages higher than actually needed just to keep the system stable?
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  9. 06-24-2012 #9
    Acebmxer's Avatar
    Acebmxer
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    Default Re: undervolting i5 2500k

    yes but some times auto can set voltages not high enough. This is why we suggest that even if your running stock or before you start to overclock set all voltage manually and test.
    Main Rig
    Gigabyte z87x-OC - Bios F5i
    Haswell i5 4670k - 4.5Ghz @ 1.325v LLC Extreme (L311B424)
    Samsung Green 8GB 2x4GB MV-3V4G3D/US DDR3 1.3v 30nn
    Sapphire ATI HD 7970 3GB clocked 1200MHz @ 1.181v.
    HiS ATI HD 6950
    Corsair Force GT 120 GB Sata3 SSD (boot drive) on Intel sata3 controller port0
    Samsung 320GB HD322GJ 7200 RPM 16M cache on Intel sata3 controller port1
    Sony Optiarc DVD-RW AD-7240S on Intel sata3 controller port4
    CORSAIR CMPSU-850TX PSU
    Swiftech MCP655-B Pump
    EK Supremacy Cpu Block
    Swiftech Mcres Micro Rev 2 Reservoir
    Black Ice GTX Xtreme 360 Radiator

    Server1
    HAF 932
    Gigabyte z77x-UD3H F17
    i7-3770S batch 3212B621 supports VT-D and low power
    32GB 4x8gb Muskin Enhanced Blackline 10-10-10-27@1.65v
    Vmware vSphere ESXi 5.0u1




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  10. 06-26-2012 #10
    good223
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    Default Re: undervolting i5 2500k

    Quote Originally Posted by Acebmxer View Post
    yes but some times auto can set voltages not high enough. This is why we suggest that even if your running stock or before you start to overclock set all voltage manually and test.
    Ok thanks for the help. I've been testing various voltages over the past few days.
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