ASUS ROG Strix power supply overheating (solution idea)

[Drolx]

I have ASUS ROG Strix (2023) version with nvidia 4090 and Ryzen 9.
While playing Helldivers 2 (in Turbo mode) because game is both CPU and GPU intensive, power supply adapter heats so much so that laptop automatically turns off auxiliary power and continues running on battery untill adapter cools down. I’m talking about “you can hurt yourself if you touch it” kind of hot. In this scenario laptop falls back from Turbo to Performance mode as Turbo is unavaliable on battery power. If I overock it using Ultimate mode its even worse and laptop completely shuts down when it overheats.

So I initially started looking for solutions: cooling pads for power supply, aluminum heatsinks, freezing pads and whatnot.

What occured to me is that I could purchase regular computer power supply frm ASUS. What Im not sure about ia that obviously this power supply either has its own temperature measurement that turns it off, which is more likely, or less likely that power supply is communicating with laptop to turn off if overheating occurs.

So if that is possible solution, what ASUS power supply would you suggest and more important, how would you connect to laptop.

Original AC/DC adapter:

Input 100-220V • 50-60Hz • 3.2A

Output 19.5V • 11.8A

[cl-Albert]

Which notebook model do you have and can you check the input rating label under the notebook to see if it matches your AC adapter output?

The way your adapter is working doesn't sound normal and wondering if you could be using the wrong adapter or too small of an adapter in terms of wattage for your notebook.

[Drolx]

Laptop model is ROG Strix G733PY (2023).
Input:  +20V • 16.5A, 330W / +20V • 5A (only for Type C DC in)

Adapter is canned one that originally came packed with a laptop and has ROG (eye) logo engraved. Model ADP-230GB B
Input 100-220V • 50-60Hz • 3.2A
Output 19.5V • 11.8A

Its under warranty untill 2025.08.09

Is that OK?

[cl-Albert · Accepted solution]

Thanks for the details.

According to the information you provided from your ROG Strix G733PY (2023), it requires a 330W adapter which should output 20V, 16.5A (20V * 16.5A = 330W for those that are interested).

The adapter you are using only provides 230W (19.5 * 11.8 = 230.1W which we will call 230W for simplicity), so you are using the wrong AC adapter and explains why the AC adapter is getting too hot and stops working during heavier loading.

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Not sure how you want to resolve the issue or what works best for you.

If you received the notebook brand new in a sealed box, we expect it would have included the correct 330W adapter, so if that didn't appear to be the case, not sure if you can still discuss with the store to see if that is something happened on their side that they can help with.

The 230W adapter that you are using currently is probably for a different ASUS notebook model using a smaller adapter, so not sure if recall any occurrences when it could have been switched by accident.  If you ever get together with others using ASUS notebooks, it may be possible to mix up the adapters when they are using the same tips.

You may also want to talk to the local ASUS support in your region to make sure they were not aware of any issues related to the ASUS factory for this or see what options they suggest for you to resolve it.

It probably is not your first choice, but you can also try to find a spare AC adapter for you notebook which you may want to discuss with your local ASUS support about as well.

Good luck and feel free to discuss!

[Drolx]

That was exactly the case. I have several ASUS ROG Strix laptops, last two from 2021 and 2023. I mixd up power supplies from those two. 

[cl-Albert]

Glad to hear you could figure that out and thanks for sharing!