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Thread: Vcore Voltage Readings

  1. #1
    Join Date
    May 2010

    Default Vcore Voltage Readings

    Hi, I have set my vcore to 1.35+ in the bios, after vdroop, cpu-z shows 1.328, everest shows 1.33 but in PC HEALTH STATUS in the bios, the vcore shows 1.34.

    I dont want to push my e8400 higher than 1.365 so I was wondering if the bios voltage readings were more accurate and if I should rely on them ?

    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

  2. #2
    Acebmxer's Avatar
    Acebmxer is offline Gigabyte Elite
    Join Date
    May 2009
    New Jersey, United States

    Default Re: Vcore Voltage Readings

    All sound correct. Is that with LLC enabled? Depending on your cooling your chip should handle up to 1.425v with out issue.
    Main Rig
    Gigabyte z87x-OC
    Haswell i7 4770k - 4.7Ghz @ 1.330v LLC Extreme (L310B492)
    G.Skill F3-1700CL9D-8GBXM DDR3-2133mhz 9-11-10-28 1.65v @ 2800mhz 12-14-14-35 1.7v
    Samsung Green 8GB 2x4GB MV-3V4G3D/US DDR3 1.3v 30nn @ 2200Mhz 11-11-11-32 1.60v
    Sapphire ATI HD 7970 3GB clocked 1200MHz @ 1.181v.
    HiS ATI HD 6950
    Samsung 840 Pro 256GB SSD (boot Drive) on Intel sata3 controller port0
    Corsair Force GT 120 GB Sata3 SSD on Intel sata3 controller port1
    Samsung 320GB HD322GJ 7200 RPM 16M cache on Intel sata3 controller port2
    Sony Optiarc DVD-RW AD-7240S on Intel sata3 controller port5
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  3. #3
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    PCB Island

    Default Re: Vcore Voltage Readings

    What you need to look at is Vdrop and Vdroop, Vdrop is amount set in BIOS vs what you get in windows at idle, and then vdroop is what you get under load vs idle.

    This is why you may be seeing varied amounts.

    By the way, the Intel rated max safe Vcore for E8400 is 1.45V Per the spec PDF, page 17

    The 1.365 you are probably concerned with is VID, which is the highest voltage a CPU will leave the factory rated at for stock specifications, not what is the max safe amount to use and of course you need good cooling for higher voltages.

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