Predator Helios Neo 16 AI (PHN16-73-934N) – RTX 5070 Ti 140W Power Limiting Issue

StarDestroyer16

Hello,

I recently purchased the Predator Helios Neo 16 AI (PHN16-73-934N, Ultra 9 275HX + RTX 5070 Ti Laptop, 140W variant). After bench marking and stress testing, I found that the system seems to be power limited below its advertised specifications.

I'm running at the maximum performance mode, turbo in predator sense, plugged in with zero battery life optimization. Turned of mux switch and Advanced optimus. Running on a clean and fresh install of windows 11 home.

• CPU (Cinebench R23): Package Power peaked at ~138 W, which is normal.
• GPU (FurMark / Superposition 8K / GPU-Z / HWiNFO): Board Power capped at ~110–115 W, well below the expected 140 W TGP with Dynamic Boost.
• System Total Power (HWiNFO): ~240 W max, while this configuration should normally sustain closer to 260–280 W, Considering the power brick comes with 330w.
• Thermals: CPU ≤ 88 °C, GPU ≤ 71 °C, VRAM ≤ 70 °C → no thermal throttling present.

HWiNFO Report R23 and FM.CSV

GPU-Z Sensor Log R23 and FM.txt

HWiNFO Report.CSV

Screenshot 2025-10-03 232350.png

NVIDIA System Information 10-04-2025 00-20-59.txt

Acer_Power_Limiting_Report.pdf

This behavior suggests that an EC firmware or BIOS-level power cap is restricting the GPU from reaching its full potential, despite thermal and power headroom being available.

I have attached monitoring logs (GPU-Z, HWiNFO) showing these results.

My questions are:

1. Is this lower GPU wattage limit intentional for the PHN16-73 AI (non-S variant)?
2. If not, will Acer release a BIOS/EC firmware update to unlock the full 140 W GPU TGP + Dynamic Boost as advertised?

Thank you for your assistance.

StevenGen

Thank you so much for going to such detailed testing and for pointing all this out to the Acer forum, as its very informative and Acer techs do appropriately look at posts especially for these new models and or the administrator are in contact with Acer techs, but you have to appreciate that it will take time when Acer will update and/or do anything about the gpu wattage limit with a bios version update for the PHN16-73 model, if they will do anything at all.

Acer forum has no direct bearing on what Acer techs do within updating the bios and firmware versions of these high end gaming laptops. You will have to wait for the next PHN16-73 model bios as this laptop is only new and Acer has only got one bios version 1.07 that "Updates EC version". Acer do release new bios version as its appropriately required so you will have to wait. Hope this helps you out.

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