M3-7Y30 power consumption on idle?

[Anthony]

<p>Hmm, my first posts on this wobsite. THe attachment doesn’t seem to have worked the first time. </p>

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[Chris G]

Hi,

This seems correct to the 7Y30 Vs the old 5Y10 has a much better GPU and various other tweaks that do use more power on idle as a trade off. You can try undervolting a little to help offset this with Intel XTU or Throttlestop.

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[Anthony]

Hmm ok. Could anybody share a screenshot of their Throttle C state window? I believe this is the culprit – the 7Y30 cannot go to a Pacackage C state lower than C2. There is a lot of power to saved simply by switching to C7, C8, or even C10. Teclasst has this option unlocked in the BIOS, butu it seems to be a driver than pprevents the CPU package from entering into a deeper sleep state.

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[Anthony]

OK, I just found the cause of the issue. The generic Teclast 128GB SATA SSD has a bug where it does not allow the CPU Package to enter a C-State lower than C8. The potential power saving is huge – up to 25% power consumption reduction during idle.

I have ordered a Transcend 128GB SSD, which will hopefully mitigate this issue. I will report in three weeks time, as I have a school tour and will not be able to receive the SSD.

@Chris did you do your battery life testing/review with your 256GB SSD or the one that came with the laptop? I’m able to comfortably get 7-8hrs of use with this bug – with this new SSD I might be able to push 9 or even 10hrs.

The power savings from entering C2 to C8 is huge and cannot be ignored. Porhaps I just got a faulty SSD…

[Author]

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