High DPC Latency and System Crashes with NVIDIA GPU on Helios Neo 16 PHN16-71 (2023)

VNTEEN

Hello everyone,

I hope you are all doing well. This is my first time posting on this forum, and I would appreciate your understanding as my English is at an intermediate level.

I am writing to seek assistance with a persistent issue on my Acer Predator Helios Neo 16 (2023) laptop. Here are my system specifications:

• GPU: NVIDIA GeForce RTX 4050
• Windows Version: Windows 11 (23H1)
• Current NVIDIA Driver: 576.88
• BIOS Version: 1.18

The primary problem occurs whenever the system switches to the dedicated NVIDIA GPU. When this happens, all non-gaming applications crash, the display goes black, and the entire system becomes unresponsive. The only way to recover is to perform a hard shutdown by holding the power button for several seconds.

To resolve this, I have attempted a number of troubleshooting steps, including:

1. A clean reinstallation of Windows.
2. Updating the BIOS to the latest available version (1.18).
3. Experimenting with various NVIDIA drivers, from the most recent releases to older, reportedly stable versions.

Following advice from other posts on this forum, I used the LatencyMon utility to analyze the issue. After implementing several suggested fixes, I have seen a slight improvement—the crashes are now less severe and occur less frequently. However, the underlying problem has not been resolved. I have attached a screenshot of my latest LatencyMon results for your review.

I am reaching out to this knowledgeable community in the hope that someone has encountered and resolved a similar issue. I would be immensely grateful for any guidance on how to:

1. Effectively reduce the high DPC latency values reported by LatencyMon, which seem to be linked to the NVIDIA driver.
2. Permanently fix the system crashes and instability when the NVIDIA GPU is active.

This laptop is a crucial tool for my work and represents a significant personal investment for me. Achieving system stability is of the utmost importance.

Thank you in advance for your time and any assistance you can provide.

Best regards.

[Edited the content to hide sensitive information]

StevenGen

What you first need to do is to update the Win-11 OS to its last version 25H2 and all its updates to its last OS build: 26200.6725, then install the NVidia App and play all supported games through this app, update the RTX4050 gpu to the last Game Ready Driver - WHQL driver version: 581.42 as not doing all these updates will contribute to the problems that you are experiencing also. So try all these updates and let us know if all the issues that you are having are fixed.

Note: keep this excellent high end gaming laptop at default setting as that is the best for this laptop to perform at, the only thing that these laptops need is more ram for gaming and certain high end applications and these laptops should be run at min 64GB at 2x DDR5-5600MT/s CL46 type ram modules, preferably 96GB or even 128GB for best and ultimate performance, do not overclock, underclock or modify settings as you will affect the performance on this laptop considerably.

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