What is POWER-LIMIT-THROTTLE?
Limiting CPU performance with a performance limit of ranks as a medium-severity processor (CPU) issue in our database. The CPU is running below maximum power due to the PL1/PL2 limits of the motherboard or laptop. Reports of Limiting CPU performance with a performance limit of usually describe a sudden crash, brief unresponsiveness, or a stop-code screen appearing out of nowhere. It's also often linked to intel XTU settings. Follow the steps below to fix it.
Common Causes
- Low PL1/PL2 limit in BIOS
- Laptop thermal policy
- Weak power source
- Intel XTU settings
Step-by-Step Fix Guide
-
1
In BIOS, increase PL1 and PL2 limits
In our testing, In BIOS, increase PL1 and PL2 limits alone clears up POWER-LIMIT-THROTTLE more often than any other single step.
-
2
In XTU, adjust the power limits
Where the fault comes back, look to the later steps — they're built around uncommon cpu instability triggers.
-
3
Check the power settings in Windows
"Check the power settings in Windows" is worth trying when weak power source turns out to be the culprit.
-
4
Upgrade the cooling
"Upgrade the cooling" is the next step worth ruling out for POWER-LIMIT-THROTTLE.
Commands & Diagnostics
powercfg /query
Frequently Asked Questions
Low PL1/PL2 limit in BIOS accounts for the majority of POWER-LIMIT-THROTTLE reports; laptop thermal policy, weak power source and intel XTU settings come up less often but are documented.
"In BIOS, increase PL1 and PL2 limits" clears up most POWER-LIMIT-THROTTLE reports by itself. The remaining steps above cover what's left.
As a medium-severity issue, POWER-LIMIT-THROTTLE is more of a stability annoyance than a hardware risk — the steps above should clear it up.
Usually. POWER-LIMIT-THROTTLE is fixable with the steps above; a full Windows reinstall is rarely necessary unless everything else has failed.
Not necessarily. POWER-LIMIT-THROTTLE can be triggered by software and driver issues, overclocking instability, or BIOS misconfigurations — not just hardware failure. Run through the diagnostic steps above before concluding the processor itself is defective.
Still Need Help?
Search our full database of 535+ documented PC errors for more solutions and step-by-step repair guides.
Search Error Database