0

I have recently purchased a secondhand/refurbished HP laptop with i7-8550U CPU and MX 150 GPU. The first thing I noticed is that it runs unreasonably slow on games, much slower than my other i7-8550U + 620 (GPU) laptop.

I tried to figure out what is going on. Looking at the CPU-Z chart and performance tab in Task Manager, I see some very strange behaviors. The new secondhand laptop CPU operates in a much higher voltage range (0.9V - 1.35V), compared to the other laptop with the same CPU (0.7V - 0.9V). The secondhand laptop's CPU constantly has its multiplier at 30 to 40, core speed at 2500 MHz to 4000 MHz, while the other one is stable at a 10 to 13 multiplier and a 1000 to 1200 MHz core speed. All of these are idle CPU results (less than 5% usage).

What is going on with this secondhand/refurb laptop? Has it been altered? Why is the CPU constantly running at such high voltages/frequencies yet underperforming? I haven't tried undervolting it, but I don't think it would be a wise move without understanding why the CPU is not running at factory configuration in the first place. All firmware, software is up to date, including BIOS.

enter image description here

Improve this question
4
  • "Recently purchased"? Return it. If you try to fix something, you're likely to void any warranty, written or implied.
    – DrMoishe Pippik
    Commented Jul 8, 2018 at 14:58
  • Try resetting the BIOS settings. Sounds like the power management settings have been disabled.
    – Appleoddity
    Commented Jul 8, 2018 at 15:02
  • @Appleoddity Already tried that...
    – Deancue
    Commented Jul 8, 2018 at 15:11
  • Can you run some sort of benchmark like Cinebench to get a quantitative confirmation of the differing performance?
    – JMY1000
    Commented Jul 9, 2018 at 16:49

0

Reset to default

You must log in to answer this question.

Browse other questions tagged .