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Asus ROG Zephyrus G15 suddenly lags

It happens suddenly 2 days ago, before everything is smooth. suddenly the computer really lags and even without starting up any application it lags really bad. If tried updating all the drivers both AMD and Nvidia and then cleaning the fans and also clean boot up but nothing seems to work. In addition, the RAm and storage is barely used, so I'm not sure if it has to do something with software wise? I also include the log here for reference. log

AMD Ryzen 9 5900HS RTX 3070 RAM 24Gb

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Greetings. My name is Anis. I'll be glad to help you today.

It sounds like you're dealing with a performance issue that appeared suddenly. Since you've already tried updating drivers, cleaning the fans, and performing a clean boot, here are some additional steps to help diagnose and potentially resolve the issue:

1. Check if there is any pending Windows Update (Settings>Windows Update).

2. Clean Temporary Files:
Open Run (Press Windows+R key together)
Type %temp% and hit Enter.
Select all files, folders and delete them.

3. Disk Cleanup:
Search Disk Cleanup at the Start Menu search bar and open it.
Select C:\ drive and press OK.
Click on all the check boxes and press OK.

4. Run the System File Checker (SFC) and DISM:

Run SFC:
Press Win + X and select Command Prompt (Admin).
Type sfc /scannow and press Enter. This process may take some time to complete.

Run DISM:
After SFC completes, type the following command and press Enter:
DISM /Online /Cleanup-Image /RestoreHealth
Allow the process to complete.

Restart Your Computer.

Let me know the status.

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Hi, yes thank you for the help it was smooth for like the first 10 minutes and then it started to lag again.

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Please check if the PC heating up?
Install CPU-Z app and check the CPU and GPU temperature. The PC may lag because of overheating.
Search CPU-Z at Bing and enter their website. The download and install the CPU-Z app.

Open the CPU-Z app and let me know the CPU and GPU temperature.

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screenshoot from the ROG softwareImage

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The temperatures are normal.
Okay, please open Windows Security and run a Full Scan. This may take some time.

To open Windows Security, please type "windows security" at the Start menu search bar.

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HI thank you, i've cleaned all the "possible threat" mentioned by the windows security, but still doesn't help. I just unplugged my second monitor from my laptop and its now way better, is it possible that faulty HDMI cables caused this lag? thank you

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You mentioned that the issue started two days ago. Hence, the HDMI cable issue is a little unlikely, but we can rule out the possibility. You can try another HDMI cable and check.

Please open Armoury Crate.
Switch the Operating mode to "Performance" or "Turbo" and check if the PC lags.

Refer to the attached image.
Image

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Question Info

Last updated April 16, 2025 Views 27 Applies to: