Have you ever noticed that your 12th Gen Intel is extremely sluggish because it’s stuck at 400 MHz (on all cores, for a prolonged time, even after cooling down)?
- Yes.
- No.
If yes, let's collect some information to see if there's a pattern.
Which processor do have?
- i5-1240P
- i7-1260P
- i7-1280P
Under which BIOS version did/do you experience the 400 MHz bug?
- 3.04 (factory version)
- 3.05 (factory version)
- 3.06 Beta
- 3.08 Release
- 3.09 Beta
- 3.17 Release
- 3.18 Beta
What did/do you (usually) have to do to get your laptop “unstuck”?
- Waiting a couple of minutes.
- Waiting for more than 5 minutes.
- Waiting for more than 10 minutes.
- Waiting for more than 30 minutes.
- Letting the CPU cool down.
- Rebooting the computer.
- Resetting the Embedded Controller (powering off & removing power for more than 2 min).
- Resetting the mainboard.
- Replacing the mainboard.
- Other (see comment section).
How were/are you using your laptop when the 400 Mhz bug happend/happens?
- Opened (exhaust unobstructed).
- Closed (e.g., with external monitor and keyboard).
- Standalone (e.g., mainboard in Cooler Master case).
- With a docking station.
- On a flat surface with open air intakes (desk, table, etc).
- On a soft surface with (partially) obstructed air intakes or exhaust (bed, couch, cushion, etc).
- On the lap.
The affected laptop was/is equipped with the following battery type(s):
- None
- 55 Wh
- 61 Wh
Were/are you on battery or connected to power when it happened/happens?
- On battery.
- Connected to power.
If it happened/happens connected to power answering he following questions might give additional insights.
What kind of power supply was/is used during experiencing the 400 MHz bug?
- None
- < 30 W
- 30 - 45 W
- 45 - 65 W
- 65 - 90 W
- ≥ 90 W
Which expansion card slot was/is used for the power supply?
- 1 (rear left).
- 2 (front left).
- 3 (rear right).
- 4 (front right).
Under which operating system did/does your laptop get stuck at 400 MHz (sorry, no more than 20 options allowed)?
- Windows 11 (officially supported)
- Ubuntu 22.04 LTS (officially supported)
- Ubuntu 24.04+ (officially supported)
- Fedora 42 (officially supported)
- Bazzite (officially supported)
- Manjaro XFCE (community supported)
- Linux Mint (community supported)
- Arch Linux (community supported)
- NixOS 24.11+ (community supported)
- FreeBSD
- Haiku
- Windows 10
- Debian Stable
- Pop!_OS
- openSUSE
- Other Linux
- OpenBSD
- Other BSD
- Another OS
- None (e.g., UEFI, bootloader)
Which power profile was/is active when the 400 MHz bug manifests?
- Power Save
- Balanced
- Performance
- Other
What controls the power profile when the CPU is stuck at 400 MHz?
- “Windows”
- ppd - power profiles daemon (default on Ubuntu?)
- tuned (default for Fedora)
- thermald
- auto-cpufreq
- tlp
- something else (see comments)
Are you able to reproduce the 400 MHz bug intentionally (e.g., by starting a certain game or running a certain program)?
- No.
- Yes.
If you’re able to trigger this bug intentionally, please, mention in the comments how you achieve this.
If no, let's see what might help to prevent the 400 MHz bug from happening.
What’s the processor on your mainboard?
- i5-1240P
- i7-1260P
- i7-1280P
Which BIOS version(s) have you used for more than a week?
- 3.04 (factory version)
- 3.05 (factory version)
- 3.06 Beta
- 3.08 Release
- 3.09 Beta
- 3.17 Release
- 3.18 Beta
How are you usually use your laptop?
- Opened (exhaust unobstructed).
- Closed (e.g., with external monitor and keyboard).
- Standalone (e.g., mainboard in Cooler Master case).
- With a docking station.
- On a flat surface with open air intakes (desk, table, etc).
- On a soft surface with (partially) obstructed air intakes or exhaust (bed, couch, cushion, etc).
- On the lap.
Your laptop is equipped with the following battery type:
- None
- 55 Wh
- 61 Wh
Are you usually using your laptop on battery or connected to power?
- On battery.
- Connected to power.
What kind of power supply is usually used?
- < 30 W
- 30 - 45 W
- 45 - 65 W
- 65 - 90 W
- ≥ 90 W
Which expansion card slot(s) is/are used for the power supply?
- 1 (rear left).
- 2 (front left).
- 3 (rear right).
- 4 (front right).
Which operating system(s) do you usually use (sorry, no more than 20 options allowed)?
- Windows 11 (officially supported)
- Ubuntu 22.04 LTS (officially supported)
- Ubuntu 24.04+ (officially supported)
- Fedora 42 (officially supported)
- Bazzite (officially supported)
- Manjaro XFCE (community supported)
- Linux Mint (community supported)
- Arch Linux (community supported)
- NixOS 24.11+ (community supported)
- FreeBSD
- Haiku
- Windows 10
- Debian Stable
- Pop!_OS
- openSUSE
- Gentoo
- Other Linux
- OpenBSD
- Other BSD
- Another OS
Active power profile(s)?
- Power Save
- Balanced
- Performance
- Other
What controls the power profile(s)?
- “Windows”
- ppd - power profiles daemon (default on Ubuntu?)
- tuned (default for Fedora)
- thermald
- auto-cpufreq
- tlp
- something else (see comments)