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    T8100 cpu owners; does your speedstepping work properly ?

    Discussion in 'Windows OS and Software' started by stimey, Apr 21, 2008.

  1. stimey

    stimey Notebook Enthusiast

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    I recently bought a BenQ S32B notebook with an T8100 cpu and I noticed the CPU wasn't speed-stepping properly in both Vista and XP, it works fine in Linux tho. The CPU only using 8x and 10x multiplier (1600/2100) it never goes down to 800, I've tried everything, from power schemes to NHC, speedfan, fangui, etc ,etc.

    I've only found one other person here with similar problems and was wondering if we are the only two, or maybe some T8100 owners did not notice the speed-stepping issue. Or did the other user and me did something wrong? The bios on my laptop only has one option related to power saving and cpu and no matter if i enable or disable it XP and Vista wont scale down to 800. Anyone else has this or know a solution?
     
    stimey, Apr 21, 2008
    #1
  2. flipfire

    flipfire Moderately Boss

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    Use RMclock with CPU-z, definately be able to see which multipliers are in use

    btw you gotta put certain cpu loads to reach certain multipliers
     
    flipfire, Apr 21, 2008
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  3. stimey

    stimey Notebook Enthusiast

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    I installed RMclock, and it shows 800, coretemp, cpuz and hwmonitor of cpuid all disagree with RMclock. Who is right, very confusing! And why don't programs like NHC and others and even XP/Vista itself report the right speeds? This CPU is not that new is it? I attached a screenshot of above programs running.. Also notice the temperature difference between RMclock and the rest, the laptop itself feels cooler under Linux @ 800 than XP/Vista, so im not sure if it is actually running at 800 or not... How to tell :confused:
    hrm.jpg

    Edit: Just ran the same batch of programs on another laptop here, a NEC with a C2D T5200, all programs agreed on speeds and temperates there... What is wrong with my T8100/laptop... :(
     
    stimey, Apr 21, 2008
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  4. flipfire

    flipfire Moderately Boss

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    show me a screen shot of RMclock's 'profile' page

    rmclock is a dedicated cpu utility so it trust that more.

    coretemp is showing ur CPU as a Xeon CPU lol
     
    flipfire, Apr 21, 2008
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  5. andygb40

    andygb40 Notebook Deity

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    I wonder if there is a setting in your bios for SLFM (super low frequency mode)? There was a recent bios update for my notebook that covered this exact problem-(processor can support SLFM but hardware can't).
     
    andygb40, Apr 22, 2008
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  6. flipfire

    flipfire Moderately Boss

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    Actually thats correct. The latest CPU-z doesnt detect SuperLFM properly becuase it only came out with the T7xxx processors which isnt that old

    RMclock is showing the right stats

    Your normal idle should be 6x at 1200mhz but you have superLFM which is default at 8x @ 800mhz
     
    flipfire, Apr 22, 2008
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