Please report all spam threads, posts and suspicious members. We receive spam notifications and will take immediate action!
Page 2 of 5 FirstFirst 1234 ... LastLast
Results 11 to 20 of 50

Thread: Overclocking the P55-UD4P / i7860




  1. #11
    Join Date
    Oct 2009
    Posts
    20

    Default Re: Overclocking the P55-UD4P / i7860

    I have:
    • GA-P55-UD4P
    • Core i7 860
    • Cooler Master Hyper 212 Plus
    • Mushkin 996657 DDR3-1600 memory (7-7-7-20 at 1.9V)


    I am trying to get this to 4 GHz, and I'm falling short.

    I have tried BCLK 190 * 21, and BCLK 200 * 20. But Prime95 fails pretty quickly.

    It has run for 4 hours at 180 * 21 = 3.78 GHz.

    I am using auto settings for all voltages, since my first attempt to copy some settings I saw in a review (205 * 21 at VCORE 1.375, VTT 1.39, and PLL 1.86) produced an immediate RMA.

    I have enabled the enhanced SPD for 800 MHz (7-7-7-20 at 1.9V), and that runs MemTest86+ for 12 hours no problem, so I don't think it's the memory.

    Gigabyte's EasyTune 6 says that my CPU temperature is at 71 C when Prime95 craps out.

    Any suggestions?

    Thanks.

  2. #12
    Join Date
    Oct 2009
    Posts
    3

    Default Re: Overclocking the P55-UD4P / i7860

    the youtube vid had a OC genie button on the msi mobo, does gigabyte have something similar? how much faster does it do with same amount of effort?

  3. #13
    Join Date
    Jun 2009
    Location
    Western U.S.
    Posts
    200

    Default Re: Overclocking the P55-UD4P / i7860

    Quote Originally Posted by InterMurph View Post
    I have:
    • GA-P55-UD4P
    • Core i7 860
    • Cooler Master Hyper 212 Plus
    • Mushkin 996657 DDR3-1600 memory (7-7-7-20 at 1.9V)


    I am trying to get this to 4 GHz, and I'm falling short.

    I have tried BCLK 190 * 21, and BCLK 200 * 20. But Prime95 fails pretty quickly.

    It has run for 4 hours at 180 * 21 = 3.78 GHz.

    I am using auto settings for all voltages, since my first attempt to copy some settings I saw in a review (205 * 21 at VCORE 1.375, VTT 1.39, and PLL 1.86) produced an immediate RMA.

    I have enabled the enhanced SPD for 800 MHz (7-7-7-20 at 1.9V), and that runs MemTest86+ for 12 hours no problem, so I don't think it's the memory.

    Gigabyte's EasyTune 6 says that my CPU temperature is at 71 C when Prime95 craps out.

    Any suggestions?

    Thanks.
    I'm surprised the memory passes. How high does that board go for RAM voltage? I am under the impression this platform uses 1.65V memory. I have almost the same setup as you except I have a TX3 cooler or\\and my Mushkin is 996679 (7-8-7-20 1.65V) and mine runs fine and OCs fine. If I had a better cooler I would run at 4.0 or 4.2Ghz all the time.

    I think it's your memory. Try some 1.65V stuff.
    P55-UD4P - i7860 - Patriot Inferno 120GB SSD - 1600Mhz Mushkin 7-8-7-20 - 3 WD 640GB Black
    880GMA-UD2P - X6 1055T CPU - Patriot Inferno 120GB SSD - GSkill 1333 8-8-8-21 - 2 500GB WD Black
    2 or 3 other systems I like to play with and a laptop

  4. #14
    Join Date
    Oct 2009
    Posts
    20

    Default Re: Overclocking the P55-UD4P / i7860

    But....

    I just ran 12 hours of Memtest86+ 4.0 with no errors.

    The board recognizes the enhanced SPD profile; when I enable it, it chooses 1.9V at 7-7-7-20.

    And when I run Prime95, I choose the "In-place large FFTs (maximum heat, power consumption, some RAM tested) option. It runs 8 threads for an hour before one fails, then runs 7 threads just fine.

    So while I don't think it is my memory, I will disable the enhanced profile, throttle back to 1.65V or so, and see what happens.

    Thanks.

    PS What CPU temperature are you seeing when you stress your setup? Mine is at 71C, both during a test that fails and also at lower speeds, when the test succeeds.

  5. #15
    Join Date
    Jun 2009
    Location
    Western U.S.
    Posts
    200

    Default Re: Overclocking the P55-UD4P / i7860

    At 4Ghz mine gets near 75C. I don't let it go long. I need a better cooler.
    P55-UD4P - i7860 - Patriot Inferno 120GB SSD - 1600Mhz Mushkin 7-8-7-20 - 3 WD 640GB Black
    880GMA-UD2P - X6 1055T CPU - Patriot Inferno 120GB SSD - GSkill 1333 8-8-8-21 - 2 500GB WD Black
    2 or 3 other systems I like to play with and a laptop

  6. #16
    Join Date
    Oct 2009
    Posts
    20

    Default Re: Overclocking the P55-UD4P / i7860

    So now I'm running 200 * 20 = 4.0 GHz.

    I disabled the enhanced memory profile, and I'm running with an 8x multiplier, so it's 1600MHz at 9-9-9-24.

    With 8 threads of Prime95, my CPU is at 57C. That's down from 71C when I had the memory at the same speed, but at 1.9V and at 7-7-7-20.

    So maybe you're right about the memory; I'll let this run and see what happens.

    Thanks.

  7. #17
    Join Date
    Oct 2009
    Posts
    20

    Default Re: Overclocking the P55-UD4P / i7860

    2.5 hours, no problems, and still 58C.

    I'm going to try 200 x 21 = 4.2GHz now...

  8. #18
    Join Date
    Jun 2009
    Location
    Western U.S.
    Posts
    200

    Default Re: Overclocking the P55-UD4P / i7860

    Cool, I hope it works out. I'm pretty sure the P55 boards like 1.65 max volt RAM though. If you look closely the voltages start to turn red at 1.9V I think this is your problem. You need some lower voltage RAM.
    Last edited by nate42nd; 10-13-2009 at 04:04 AM.
    P55-UD4P - i7860 - Patriot Inferno 120GB SSD - 1600Mhz Mushkin 7-8-7-20 - 3 WD 640GB Black
    880GMA-UD2P - X6 1055T CPU - Patriot Inferno 120GB SSD - GSkill 1333 8-8-8-21 - 2 500GB WD Black
    2 or 3 other systems I like to play with and a laptop

  9. #19
    Join Date
    Oct 2009
    Posts
    20

    Default Re: Overclocking the P55-UD4P / i7860

    Well, that most certainly did not work out.

    Not only does it not boot at 200 * 21 = 4.2 GHz, now the system is just about completely unstable at anything except the defaults.

    Several times, at 3.4 GHz and 3.6GHz, I couldn't even boot Windows.

    After unplugging everything for an hour, I tried again at 3.4 GHz and booted OK. I ran Prime95, then came back later to a locked-up system.

    I'm back to defaults (133 * 21 = 2.8 GHz), and I'm pissed!!!!

  10. #20
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    Location
    PCB Island
    Posts
    25,940

    Default Re: Overclocking the P55-UD4P / i7860

    1.65 is not the max, but you must keep Vtt within a certain range of the Vdimm, and I DO Suggest you do not use Auto voltages, set them all yourself. Especially at this high overclock, auto will choose insane voltages

    Now, that ram is not designed for your board, but still may work once tweaked. This could be your issue though, how does it run if you underclock it to 1333Mhz 777-20 using 1.65-1.7V, with NB Set manually above stock and Vtt set to 1.35-1.42?

Page 2 of 5 FirstFirst 1234 ... LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •