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Thread: GA-P55A-UD7 with I7-860




  1. #1
    Join Date
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    Default GA-P55A-UD7 with I7-860

    My son built his computer and overclocked it to 4.2. Now my question is this. If load line calibration is on Standard [which disables it] then Prime95 won't run . If it is put on Level 2 Prime95 has no problems. The Gigabyte manual states "Note:Enabling Load-Line Calibration may result in damage to your CPU or reduce the useful life of the CPU." His VCore is 1.3625. I don't understand ,because I just built 2 computers with Gigabyte boards and neither of my manuals have that statement. I know that half the people say they use it and the other half say they don't. He tried disabling it and bumped the VCore up but Prime 95 still wasn't happy. That I couldn't figure out.
    GA-EP45-UD3P, Rev.1.6, BIOS FA,
    Intel E8500 Proc.@4256MHz
    Antec 900 Case
    Corsair 650 TX PSU
    Zalman CNPS9700 CPU Cooler
    OCZ Reaper DDR2 1066 4 GB RAM
    XFX Radeon 4850 1 GB Video Card
    3 160 GB Seagate Hard Drives
    Sony DRU-810A DVD Drive

  2. #2
    Join Date
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    Default Re: GA-P55A-UD7 with I7-860

    all it does is stop vdroop when under load,have you tried lowering cpu voltage with llc on standard??
    Gigabyte ex58-ud5 f12 bios
    Intel i7 920 d0 @3.8ghz 24/7-normal cpu voltage 1.18750v/c1e/turbo/multi threading enabled
    Ocz reaper DDR3 PC3-14400 (1800MHz) 3x2gb (OCZ3RPR1800LV6GK) 8-8-8-24-1t-@1.64v-1.3qpi
    Thermolab Baram cpu cooler
    Dual Boot
    1xsamsung 750gb hard drive-win7 ultimate 64
    1xsamsung 750gb hard drive-windows xp pro 32
    Ati x1950 pro gpu
    Logitech X-530 5.1 Speakers
    1050w psu
    Nzxt lexa case
    http://i40.tinypic.com/2z3w377.jpg <=3.8ghz overclock template

  3. #3
    Join Date
    Jul 2009
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    93

    Default Re: GA-P55A-UD7 with I7-860

    It is not stable if it is on Standard.
    GA-EP45-UD3P, Rev.1.6, BIOS FA,
    Intel E8500 Proc.@4256MHz
    Antec 900 Case
    Corsair 650 TX PSU
    Zalman CNPS9700 CPU Cooler
    OCZ Reaper DDR2 1066 4 GB RAM
    XFX Radeon 4850 1 GB Video Card
    3 160 GB Seagate Hard Drives
    Sony DRU-810A DVD Drive

  4. #4
    Join Date
    Feb 2010
    Location
    Birmingham,Great Britain
    Posts
    600

    Default Re: GA-P55A-UD7 with I7-860

    do you have windows 7???? select balanced profile in power saving then it will throttle the cpu right down when idle,llc shouldnt hurt things imo
    Gigabyte ex58-ud5 f12 bios
    Intel i7 920 d0 @3.8ghz 24/7-normal cpu voltage 1.18750v/c1e/turbo/multi threading enabled
    Ocz reaper DDR3 PC3-14400 (1800MHz) 3x2gb (OCZ3RPR1800LV6GK) 8-8-8-24-1t-@1.64v-1.3qpi
    Thermolab Baram cpu cooler
    Dual Boot
    1xsamsung 750gb hard drive-win7 ultimate 64
    1xsamsung 750gb hard drive-windows xp pro 32
    Ati x1950 pro gpu
    Logitech X-530 5.1 Speakers
    1050w psu
    Nzxt lexa case
    http://i40.tinypic.com/2z3w377.jpg <=3.8ghz overclock template

  5. #5
    Join Date
    Jul 2009
    Posts
    93

    Default Re: GA-P55A-UD7 with I7-860

    Yes he does have 7. I will tell him to try that. I don't understand how that will affect stability in Prime95.
    GA-EP45-UD3P, Rev.1.6, BIOS FA,
    Intel E8500 Proc.@4256MHz
    Antec 900 Case
    Corsair 650 TX PSU
    Zalman CNPS9700 CPU Cooler
    OCZ Reaper DDR2 1066 4 GB RAM
    XFX Radeon 4850 1 GB Video Card
    3 160 GB Seagate Hard Drives
    Sony DRU-810A DVD Drive

  6. #6
    Join Date
    Feb 2010
    Location
    Birmingham,Great Britain
    Posts
    600

    Default Re: GA-P55A-UD7 with I7-860

    you said you were stable on level2???? well keep it on level2 and if you select balanced in win7 power saving it will reduce vcore and cpu multiplier when idle therfore putting less a strain on cpu,under load it will switch to full speed its only at idle
    Gigabyte ex58-ud5 f12 bios
    Intel i7 920 d0 @3.8ghz 24/7-normal cpu voltage 1.18750v/c1e/turbo/multi threading enabled
    Ocz reaper DDR3 PC3-14400 (1800MHz) 3x2gb (OCZ3RPR1800LV6GK) 8-8-8-24-1t-@1.64v-1.3qpi
    Thermolab Baram cpu cooler
    Dual Boot
    1xsamsung 750gb hard drive-win7 ultimate 64
    1xsamsung 750gb hard drive-windows xp pro 32
    Ati x1950 pro gpu
    Logitech X-530 5.1 Speakers
    1050w psu
    Nzxt lexa case
    http://i40.tinypic.com/2z3w377.jpg <=3.8ghz overclock template

  7. #7
    Join Date
    Jul 2009
    Posts
    93

    Default Re: GA-P55A-UD7 with I7-860

    Thank you for the help.
    GA-EP45-UD3P, Rev.1.6, BIOS FA,
    Intel E8500 Proc.@4256MHz
    Antec 900 Case
    Corsair 650 TX PSU
    Zalman CNPS9700 CPU Cooler
    OCZ Reaper DDR2 1066 4 GB RAM
    XFX Radeon 4850 1 GB Video Card
    3 160 GB Seagate Hard Drives
    Sony DRU-810A DVD Drive

  8. #8
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    Location
    PCB Island
    Posts
    25,940

    Default Re: GA-P55A-UD7 with I7-860

    I would suggest using Level 1, then rasing the voltages as need until you get stable. Level 2 actually increases the Vcore under load, which can shoot way higher than you might want. Level 1 will keep it closer to idle voltage instead of increasing it, then you should be able to raise a few ticks at a time in the BIOS until you find the voltage amount you need.

    You could guesstimate the amount needed by looking at the full load Vcore amount in CPU-z under load, then set level 1 and adjust Vcore in the BIOS until you get close to that amount under load again.

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