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Thread: P55-UD4P: Bus speed resets to 133 after S3 Resume




  1. #1
    Join Date
    Nov 2009
    Location
    Israel
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    Default P55-UD4P: Bus speed resets to 133 after S3 Resume

    Hi,

    I'm using BLCK=155MHZ as a part of my XMP profile (160MHZ just crashed when resuming from S3, though perfectly stable in windows).
    Multiplier is 17 and everything runs stable.
    I noticed that after resuming from S3, both CPU-Z and ET6 reports bus speed of S3. I even checked my super pi score before and after the S3 resume and they differ by ~17%.
    I tried both with all advanced Turbo Mode and C1E/C3/Eist/PROCHOT enabled or disabled - no difference.
    All voltages are set to Normal, besides the memory that is set to 1.6V
    Tries all BIOSes, including F4 that was released yesterday.

    Did anyone else noticed that ? Does anyone have a clue how to fix it ?
    It seems like Gigabyte's S3 process is very buggy.

    I'm using Gigabyte GA-P55-UD4P with Intel Core I5 750,
    G.Skill Ripjaws 1600MHZ 7-7-7-24
    ATI Radeon 5770 1GB on PCI-E x16
    Enermax 435W
    Samsung F3 1GB SATA
    Samsung DVD-RW SATA

    Thanks in advance guys

  2. #2
    Join Date
    Oct 2009
    Posts
    37

    Default Re: P55-UD4P: Bus speed resets to 133 after S3 Resume

    How about disable "XMP" and just adjust BLCK to 155mhz or 160mhz? will bus speed will reset to 1333 after resuming from s3?

  3. #3
    Join Date
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    Israel
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    Default Re: P55-UD4P: Bus speed resets to 133 after S3 Resume

    Disabled XMP - Bus speed is still 133MHZ after S3.

    I just noticed another thing - CPU-Z reports CAS4 after resuming (CAS7 is reported before going to sleep). I thought this bug was fixed in the X58 series...

  4. #4
    Join Date
    Oct 2009
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    Canada
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    Default Re: P55-UD4P: Bus speed resets to 133 after S3 Resume

    The CAS4 bug has been known for a while with multiple intel platforms (X58 & P55 at least). It seems to be a communication error between the Mobo and the software. It does not seem affect the system stability.

  5. #5
    Join Date
    Nov 2009
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    Israel
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    Default Re: P55-UD4P: Bus speed resets to 133 after S3 Resume

    Well, I don't know if the things are connected, but the S3 problem still exists (Bus speed resets to 133MHZ). I'm also getting BSODs at Bus clocks >= 160MHZ after resuming from S3

  6. #6
    Join Date
    Oct 2009
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    Canada
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    Default Re: P55-UD4P: Bus speed resets to 133 after S3 Resume

    Quote Originally Posted by MBIL View Post
    Well, I don't know if the things are connected, but the S3 problem still exists (Bus speed resets to 133MHZ). I'm also getting BSODs at Bus clocks >= 160MHZ after resuming from S3
    I have the same config (p55-UD4P-i7 860). I have the minor CAS4 bug when I wake fron S3 but everything else is fine.
    BLk = 185
    Multi : 21 = 3,88 GHz
    vCore : 1,2875
    vQPI : 1,25
    Turbo OFF

  7. #7
    Join Date
    Nov 2009
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    Israel
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    Default Re: P55-UD4P: Bus speed resets to 133 after S3 Resume

    Which BIOS version are you using ?

  8. #8
    Join Date
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    Default Re: P55-UD4P: Bus speed resets to 133 after S3 Resume

    Quote Originally Posted by MBIL View Post
    Which BIOS version are you using ?
    F4v

  9. #9
    Join Date
    Jun 2009
    Location
    Western U.S.
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    Default Re: P55-UD4P: Bus speed resets to 133 after S3 Resume

    Quote Originally Posted by blurp View Post
    F4v
    I have heard some smart people say the sleep issue isn't fixed and may never be fixed. This poster said to use hibernate and forget about sleep. Not the best thing to hear but it may be true.
    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

  10. #10
    Join Date
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    Default Re: P55-UD4P: Bus speed resets to 133 after S3 Resume

    Quote Originally Posted by nate42nd View Post
    I have heard some smart people say the sleep issue isn't fixed and may never be fixed. This poster said to use hibernate and forget about sleep. Not the best thing to hear but it may be true.
    I use Sleep(S3) . No problem here.

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