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    RMclock problems on DV5t P8600 processor

    Discussion in 'HP' started by winterfell, Oct 22, 2008.

  1. winterfell

    winterfell Newbie

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    Hi there,

    I was trying to undervolt my dv5t with P8600 processor recently, but encountered a situation. RMClock could correctly recognize my processor and there is no 9x multiplier to be adjusted, which differs from a posting by Chang099 where he described his undervolting process with his dv5t.

    What may be the problem here? I had followed(or so I thought) all the steps in the undervolting guide :confused:
     
  2. LapBoot

    LapBoot Notebook Geek

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    I have a DV5-1015TX (P7350) and RM Clock couldn't recognize that either.
    I could only see the 7 and 6 multipliers for mine so under-volted those 2 down to 1.000V.

    If anyone knows some better tool for undervolting please post here.

    TIA
     
  3. Andy

    Andy Notebook Prophet

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    If running XP or Vista 32, you can checkout Notebook Hardware Control.

    Or use CrystalCPUID to manually assign a voltage for a particular multiplier.
     
  4. Chango99

    Chango99 Derp

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    Hm, can you tell us your exact system specs?
     
  5. LapBoot

    LapBoot Notebook Geek

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    This is my system config,
    Intel Centrino 2 Processor Technology
    C2D P7350 (2.0GHz, 1066MHz FSB, 3 MB L2)
    Intel PM45 chipset
    NVIDIA GeForce 9600M GT (512MB)
    15.4" HP Brightview Widescreen display
    DDR2 RAM 3GB
     
  6. Andy

    Andy Notebook Prophet

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    I guess Chango99's DV5t has a P8600 which does not have a half-multiplier (max - 9x). Your P7350 has max 7.5x, and RMClock does not recognise half-multipliers, so in RMClock the max multiplier will be 7x, so you lose 133MHz per core.
     
  7. uncming

    uncming Notebook Consultant

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    Yes...but the OP stated he has a 8600 processor and wasn't getting the 9x multiplier
     
  8. LapBoot

    LapBoot Notebook Geek

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    Yeah it looks like RMClock has some prob with the Intel P series CPU's (or maybe that is not supported as yet by it)?
     
  9. Andy

    Andy Notebook Prophet

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    @OP: Run the RMClock_WipeOut.reg, and see if 9x is detected. If you have a x64 OS, remember to replace it with the RTcore64.sys linked in the guide.

    Or NHC, and CCPUID are alternatives (depending upon your OS).
     
  10. LapBoot

    LapBoot Notebook Geek

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    (Didn't see the previous post by Andy.)
    Ok so then I guess and undervolt of 1.000V would be the best I can get on the P7350?

    BTW any way we can unlock the multiplier?
     
  11. Chango99

    Chango99 Derp

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    No LapBoot, it can't recognize half multipliers. I want to make sure the OP has a P8600 and not a P8400, thus no half multiplier, and no 9x multiplier.

    1.000v seems the lowest RM clock goes.

    Also, to the OP, as Andy stated, there is a slight difference if you have 32bit or 64bit vista, make sure to replace the RTcore64.sys on 64bit.
     
  12. Andy

    Andy Notebook Prophet

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    IDA is kind of a work-around, but is said to be buggy.
     
  13. winterfell

    winterfell Newbie

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    My bad, guys. Chang099 was right, I re-checked my processor and it was P8400 and not P8600. Am really sorry bout it, being too sure that mine was a P8600 too, hahaha... This is the only processor available in Japan's dv5. The other specs are similar to yours :
    P8400 (2.26 GHz, 3MB L2, 1066MHz FSB)
    2 GB DDR2 SDRAM
    250 GB 5400rpm HHD
    nVidia 9600GT 512MB DDR2 GRAM
    15.4" 1680x1050 WSXGA

    By the way, I went on to undervolt it regardless of RMClock not recognizing my processor. At the 8x multiplier i managed to reduce it down to 0.95V, the 6x multiplier to 0.95V and the rest kept at 0.925V (which is the default value). Had not notice much changes to the temperature, but will test the configuration more tonight.

    Once again, pardon me for the mistake.
     
  14. flipfire

    flipfire Moderately Boss

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    You gotta understand that RMclock is very outdated. Its a miracle that it even works for some of the latest processors.

    It didnt even have full support for the first gen Penryns chips.
     
  15. LapBoot

    LapBoot Notebook Geek

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    Is there any upto-date other tool that has support for the newer processors?
    Or is RMClock opensource?
     
  16. flipfire

    flipfire Moderately Boss

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    None so far..

    RMclock is a freeware not open source.