Worth Updating to BIOS 1.05 (EC Update) on Predator Helios Neo 18? What Changes?

Rebalosho
Rebalosho Member Posts: 19 Troubleshooter

Hey everyone,

I’m on BIOS 1.02 on my Predator Helios Neo 18 (Ultra 9 + RTX 5070 Ti, 64 GB DDR5, 2 TB NVMe SSD), and I’m getting around 15.6 s POST time. Acer lists a BIOS 1.05 update with EC improvements—likely to do with fan control, power management, and system initialization.

I have a few questions:

  1. Would this EC update improve boot time and system responsiveness?
  2. Could it alter fan behavior or thermal performance in games?
  3. Will it lock access to advanced BIOS menus that I currently use (like hidden tabs or SREP unlocks)?
  4. I disable Intel Turbo Boost via Change Advanced Power Settings → Processor Performance Boost Mode (on both battery and plugged in). Will the update override or revert that?
  5. Has anyone with a Helios Neo 18 already tried it? What were your results—faster POST, no side effects?

Thanks in advance for any insights—I'm weighing whether it's safe and useful to flash 1.05 now. Worth it?

Answers

  • Puraw
    Puraw ACE, Member Posts: 18,831 Trailblazer

    Hello Rebalosho,

    BIOS 1.05 vs. older BIOS (Predator Helios Neo 18)

    • Scope of changes — BIOS 1.05 includes an EC (Embedded Controller) update, which can adjust low‑level hardware control such as fan curve behaviour, power sequencing, and POST‑time routines. Compared to 1.02, expect refinements to:
      1. Fan behaviour – potentially smoother ramp profiles.
      2. Power management – improved transitions between power states.
      3. System initialization – minor optimizations for device detection at startup.
    • Unchanged areas — No evidence of removing advanced BIOS menus or altering OS‑level settings such as Windows’ Processor Performance Boost Mode.
    • Risks — Any firmware update has a small risk if interrupted; ensure stable power and avoid flashing mid‑task.
    • Recommendation logic
      • If experiencing slow POST (~15–16 s) or want potential thermal/boot refinements, the update is worth considering.
      • If the system is stable and current behavior suits you, there’s no urgent need to flash.
  • Rebalosho
    Rebalosho Member Posts: 19 Troubleshooter

    Thanks a lot for the detailed reply — that makes things much clearer.

    I should mention that I’m currently satisfied with my temps and fan curves, so I wouldn’t want to risk those becoming unstable. My only real concern is the boot/POST time (~15–16 s) — it’s not the absolute worst, but if 1.05 noticeably improves it without compromising stability, I’d consider updating.

    So I’m curious if anyone here has updated their Predator Helios Neo 18 from 1.02 to 1.05 and noticed real-world differences:

    • Did your POST/BIOS time actually shorten after the update?
    • Were there any tangible changes in fan noise or thermal behavior under load?
    • In case I don’t like the changes, is it possible to roll back safely to 1.02 on this model?

    Thanks again for the help — just trying to weigh whether it’s worth moving from 1.02 given that my system is otherwise stable.

  • AnhEZ28
    AnhEZ28 ACE, Member Posts: 5,134 Pathfinder

    That BIOS update does not change the boot time. It has little effect on fan noise (a bit quieter under light load). After updating to the 1.05, you cannot go back to 1.02.

    Please remember to include @AnhEZ28 when you want to reply back to my comment so that I can check your response.
    Thank you and have a nice day!
  • StevenGen
    StevenGen ACE Posts: 15,337 Trailblazer

    The PHN18-72 model bios version 1.05 updates the firmware of the EC chip that Acer updated one of if not most of the tasks that the EC chip controls,

    This is what an embedded controller can have the following tasks:

    • Receiving and processing signals from the keyboard[1] and the touchpad (including touchpad disable)
    • Other buttons and switches (e.g., power button, laptop lid switch (received from hall sensor))[2]
    • Controlling access to the A20 line[3]
    • Thermal measurement (CPU, GPU, Motherboard) and response including fan controlCPU and GPU throttling, and emergency shutdown in response to rising temperatures
    • Power management, including control voltage regulator module
    • Controlling indicator LEDs (e.g. caps lock, scroll lock, num lock, battery, ac, power, wireless LAN, sleep)
    • Managing the battery charger and the battery[2]
    • Allowing remote diagnostics and remediation over the network
    • Performing software-requested CPU reset[1]
    • Controlling the watchdog timer[2]
    • System Management Interrupt (entry to System Management Mode)
    • Bluetooth toggle
    • Controlling display brightness (built-in LCD or OLED)
    • USB OC (overcurrent) (USB disable)
    • Controlling RGB lighting
    • Wake-on-LAN
    • Debug Card Interface (Enables repair centers to monitor the boot process with a special device in an attempt to fix problems)
    • SCI from the Embedded Controller to inform the ACPI driver (in the OS) of an ACPI Event

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

  • Rebalosho
    Rebalosho Member Posts: 19 Troubleshooter

    @AnhEZ28

    Thank you for clarifying!

    Would you recommend updating? Is there anything beneficial?

    Thank you in advance.

  • Rebalosho
    Rebalosho Member Posts: 19 Troubleshooter

    Thank you for clarifying!

    Would you recommend updating? Is there anything beneficial?

    Thank you in advance.

  • AnhEZ28
    AnhEZ28 ACE, Member Posts: 5,134 Pathfinder
    edited August 22

    You don't really need to if your laptop is running normally.

    Please remember to include @AnhEZ28 when you want to reply back to my comment so that I can check your response.
    Thank you and have a nice day!