Poor NVMe performance on Zenbook UM431DA in battery mode

XomoxoXomoxo Level 1
edited September 2020 in ZenBook
  1. System: Windows qp
  2. Battery or AC: Battery
  3. Model: UM431DA
  4. Frequency of occurrence: Always
  5. Reset OS:
  6. Screenshot or video:


Detailed description:


I own a new Zenbook UM431DA notebook. I've detected that if I remove the AC power and leave it on battery more, the speed of the Nvme drive slows down from 1600MBs to 400MBs (reading or writing).

I think that this is a power saving more, but slow the drive speed to a 25% of its capability is too much. How can I solve this issue?



  • I've discovered that if hibernate the notebook and wake up it again, the speed of the Nvme is again 1.5 or 1.6gbps.

    Maybe a firmware problem?

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