What is BRANCH-PRED-ER?
Branch prediction error ranks as a high-severity processor (CPU) issue in our database. The jump prediction logic inside the CPU failed, typical of aging silicon. The usual suspects are dried thermal paste, overclocking too aggressively and weak power supply. Use the steps below to track down and fix the cause.
Common Causes
- Dried thermal paste
- Overclocking too aggressively
- Silicon degradation
- Weak power supply
Step-by-Step Fix Guide
-
1
Improve cooling and repast
Improve cooling and repast resolves the majority of BRANCH-PRED-ER cases on its own, making it the logical starting point.
-
2
Increase LLC (Load-Line Calibration) in BIOS
Not every case resolves on the first try; the steps that follow cover rarer cpu instability situations.
-
3
Undervolting
"Undervolting" handles an edge case some users report with BRANCH-PRED-ER.
Commands & Diagnostics
wmic cpu get status,name,currentclockspeed
powercfg /query
Frequently Asked Questions
Dried thermal paste accounts for the majority of BRANCH-PRED-ER reports; overclocking too aggressively, silicon degradation and weak power supply come up less often but are documented.
Try "Improve cooling and repast" first — it resolves most BRANCH-PRED-ER cases on its own. Only work through the rest of the guide above if it comes back.
Rated high severity — BRANCH-PRED-ER isn't immediately destructive, but recurring instances are a sign to fix it sooner rather than later.
Usually. BRANCH-PRED-ER is fixable with the steps above; a full Windows reinstall is rarely necessary unless everything else has failed.
Not necessarily. BRANCH-PRED-ER 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