Acer Helios Neo 16 (i9-13900HX) overheating for no reason — Turbo Boost stuck ON even when Idle

bohdanfursa2006
bohdanfursa2006 Member Posts: 2 New User
edited June 2 in Predator Laptops

Hi everyone,
I’m facing a really frustrating issue with my Acer Helios Neo 16 (i9-13900HX + RTX) and wanted to share my experience, along with what I’ve already tried.

💻 Specs:

  • Acer Predator Helios Neo 16
  • CPU: Intel i9-13900HX
  • GPU: RTX (disabled for testing)
  • No undervolting (XTU locked)
  • Windows 11
  • All drivers and BIOS updated
  • PredatorSense installed (used for fan control)

🔧 Background:

I’ve been using this laptop for 5 months.

  1. First 3 months at home (stable electricity) – everything was fine.
  2. Then I moved to a student dorm with bad electrical infrastructure (power surges, unstable voltage).
  3. For a month, the laptop worked okay. But now in month 5, it’s acting insane.

⚠️ The problem:

  • Even while idle or doing light tasks (like browsing in Chrome), the CPU randomly spikes to 90°C+.
  • The fans don’t ramp up fast enough (unless forced manually via PredatorSense).
  • It’s like the BIOS is stuck in "full power" mode.
  • If I don’t manually turn fans to 100%, the laptop becomes a furnace.
  • It’s impossible to undervolt (Intel locked it on new BIOS + Acer firmware).
  • BIOS has no manual fan control or performance tweaks.


🛠️ What I’ve tried:

  • Disabled RTX GPU completely.
  • Cleaned temp files, reinstalled Windows, checked drivers.
  • Used ThrottleStop and XTU to:
    • Limit Turbo Boost Power (PL1/PL2).
    • Limit Max Turbo Boost (to 30W or 60W).
  • Tried Windows Power Plans (Eco, Balanced, High Perf.).
  • Set Max Processor State to 99% (disables Turbo).
  • Created custom power profiles.

Nothing helps consistently. Sometimes the CPU behaves normally after ~5 mins of sitting hot, then cools down. Sometimes not.


🧪 My theory:

This problem started after long exposure to bad power conditions. I suspect the BIOS or EC firmware got "confused" or stuck in some weird loop where it thinks high power is always needed.

Even if the CPU is cold and idle — it boosts to 4.5 GHz and 90°C without reason.

💡 I believe a stable voltage (via UPS or AVR/stabilizer) would fix this, but I’m currently living in a dorm where that’s not an option.

🧯 Temporary fix (my workaround):

  • I disabled Short Turbo Boost (set to 0W).
  • Capped Long Boost to 30–45W.
  • Forced fan speed to 100% via PredatorSense.
  • CPU now sits at ~2.9–3.2 GHz, temps around 65–75°C.
  • Still not great, but usable.

🆘 Request for help:

  • Is there any way to reset or reflash EC firmware safely?
  • Any hidden fan/voltage BIOS settings I’m missing?
  • Anyone else experienced this with i9 Acer laptops in bad power environments?

Thanks in advance 🙏
I’d really appreciate advice — or confirmation that I’m not the only one with this behavior.

🔧 I just want my laptop to stop pretending it’s a rocket engine every time I open Chrome.

Answers

  • StevenGen
    StevenGen ACE Posts: 14,378 Trailblazer

    Have you updated the bios to version 1.18, as your 13th gen cpu has an Intel design flaw that make these cpu's overheat, its essential that the bios in these laptop is updated. If your PHN16-71-xx model is under the Acer 12 months standard warranty then get Acer Tech Support in your country to check your laptop out as it might have faulty sensors and that is why the fans don't turn on to compensate the cpu/gpu temps or the board is faulty and needs replacing. Also, those temps that you are experiencing are not high as this laptops is designed at Turbo mode like below, for the cpu to reach 110°C before an OS shutdown like in the Acer tested chart below.

    image.png

    Your Predator Neo PHN16-71 with the i9-13900HX cpu RTX gpu reaching 90°C (which is not high for these laptops) the fans should automatically compensate for that temp spikes, these cpu's are designed for these high temps also. Btw, I'm using the same PHN16-71 model laptop with the i5-13500HX cpu / RTX4050 and I've upgraded the ram to 64GB and whenever I do any gaming and/or editing, I found that with more ram the laptop seems to operate cooler, so consider increasing ram capacity to reduce the laptops processing and to generate higher temps spikes. Also and if you have unsittable power, use a surge protector power board so that your laptop gets stable power or the power gets turned off whenever there is a power surge. Good luck and hope this helps you out.

    Below is what my Predator Sense is set to and at the Balanced setting, I've got my laptop set to use only the NVidia gpu and the fans always increase their rpm when temps reach 90°C or to a higher mark to compensate and reduce cpu and gpu temps in gaming and video editing.

    image.png

    If this answers your question and solved your query please "Click on Yes" or "Click on Like" if you find my answer useful👍