p640hk1 7700hq draining battery ASPM disabled!

Discussion in 'Sager and Clevo' started by tanzmeister, Mar 26, 2017.

  1. tanzmeister

    tanzmeister Notebook Evangelist

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    I am facing this strange issue with CPU not going lower than 1.3ghz with idle @ only 0-1% cpu load.

    the battery drains really quickly with moderate browsing, hardly 150-160 minutes of usage! while advertised 290minutes in UMA mode

    powercfg -energy test shows that ASPM is disabled:

    PCI Express Active-State Power Management (ASPM) has been disabled due to a known incompatibility with the hardware in this computer

    any hints? @Prema @Meaker@Sager ?

    intel chipset drivers are up to date. and all windows 10 updates installed
     
  2. Meaker@Sager

    Meaker@Sager Company Representative

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    Have you tried a clean install to rule out something weird with the drivers?
     
  3. tanzmeister

    tanzmeister Notebook Evangelist

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    which drivers? chipset? or NVidia? Intel graphics?
     
  4. Meaker@Sager

    Meaker@Sager Company Representative

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    ASPM is going to lower the usage of the PCI-E bus but it's not going to impact the machine in a huge way. I think something power wise in windows is set oddly.
     
  5. tanzmeister

    tanzmeister Notebook Evangelist

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    nothing out of ordinary. also tried all kind of things.

    kaby lake should throttle down to 0.8-0.9ghz, right?

    @XMG perhaps you can help? I see you sell these too!
     
  6. XMG

    XMG Company Representative

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    @tanzmeister

    Friendly comment - P640HK1 right (not n640) ?

    On battery the CPU should clock down to 800Mhz at idle but even though yours is only dropping to 1.3GHz I don't think that's high enough to cause the short battery life that you see. Should get 4 hours WiFi surfing out of your laptop or 3h 30m out of BluRay playback.

    If you just focus on the CPU speed, it could be you simply have something running in the background - I've seen adware and virus' do this.
     
  7. tanzmeister

    tanzmeister Notebook Evangelist

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    yes, p640hk. my bad!

    I have nothing running on the background, besides cpu usage is only 0-1% at that times.

    I even disconnected Wi-Fi, re-installed fresh windows, install all drivers from USB - same result!

    can you test any of your machines please? I was really expecting to use this one for work!

    I am pretty sure I could squeeze some more battery life in case it would throttle down to 0.8. another half of hour definetly
     
  8. XMG

    XMG Company Representative

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  9. tanzmeister

    tanzmeister Notebook Evangelist

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  10. tanzmeister

    tanzmeister Notebook Evangelist

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    re-installed windows again, updated, drivers - still the same: no throttling down lower than 1.26ghz. also windows processor power schemes seem to do nothing! even when I select max 5% performance for CPU - it still boosts to whatever speed it wants.

    so what are your BIOS/EC versions?
     
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