: Laptop force-hibernated because of a "critical temperature event" at 54°C?
: Laptop force-hibernated because of a "critical temperature event" at 54°C?
So, I just installed G-helper for reference, since I'm using an Asus TUF A15 Laptop with a Ryzen 7 7435HS, 32GB RAM, RTX 4060 8GB, and a 512GB SSD. The Armory Crate is not doing well. Everything has been working fine, and I've been playing TLOU Part 2 with an external portable OLED connected via a 3.2x2 USB-C port that supports DisplayPort Alt mode and Power Delivery—more than sufficient for the screen. The CPU occasionally reaches high 80s to low 90s during heavy use, which is normal and has improved since I adjusted the fan settings with G-helper.
I unplugged the laptop to discharge the battery slightly so I could enable "smart charge" and ensure it doesn't exceed 80% charging. After that, I left it running while watching YouTube.
Later, I noticed the screen had turned off and the laptop entered sleep mode because my "on battery" settings triggered it. No major issue there. I pressed the external keyboard to wake it up (the lid stays closed while I placed the OLED on top).
It briefly displays the Windows login screen before the display goes dark and the fans start increasing from a quiet idle state. Nothing I could do restored the screen, not even opening the lid to use the built-in display. Eventually, I had to shut it down forcefully using the power button.
The event viewer logged:
"The system was hibernated due to a critical thermal event.
Hibernate Time = 2025-04-09T05:02:35.182980000Z
ACPI Thermal Zone = _TZ.THRM
_HOT = 328K"
At 328 Kelvin, which is just 54°C, it seems no component in the system—CPU, GPU, VRAM, DRAM, VRMs, or SSD—would trigger a shutdown at that temperature. That doesn’t make sense.
What’s happening?
Edit: After a forced reboot, the laptop is working properly again. There’s also an error message indicating Windows couldn’t wake from hibernation, just before the line about the unexpected system reboot (which I noticed by pressing the power button).
I noticed the ACPI Thermal Zone setting was set to a specific value, which caused a thermal hibernation on idle. The event viewer reported a critical temperature of 328 Kelvin or 55 Celsius—something unusual. The system details include TUF A15 FA507, 7435HS, 32GB RAM, and an RTX 4060 with 8GB.
Check if reinstalling your chipset driver provides assistance. This discussion could be useful; see the link:
https://rog-forum.asus.com/t5/gamin...af...-p/1001071
Moved the thread to the Laptop Tech Support section from Systems.
I'll try those ideas too and include some suggested BIOS updates from that discussion.
I'm experiencing this issue occasionally on my Asus TUF A15:
Event ID 88, Category 85
"The system was hibernated because of a critical thermal event"
Following that, the ACPI displays:
"ACPI Thermal Zone = _TZ.THRM"
and
"_HOT = 328K"
It appears to occur mainly when the battery is connected. I've searched extensively, even consulted forums and similar threads on ROG sites, but found no connection to this exact ACPI warning. It's unpredictable and difficult to reproduce.
Why does 328 Kelvin, which is about 55 degrees Celsius, cause my computer to panic and hibernate? How can I prevent this from happening? I can play games or run demanding tasks while plugged in, with CPU temperatures in the high 80s without any problems. But when I'm on battery, it randomly triggers this error.
It's really frustrating."