Model: Acer Predator Helios 300 (315-53) (i7‑10870H, RTX 3060)
Issue: Since a recent repair, the CPU exhibits extreme thermal throttling—even at idle. The GPU performs normally in benchmarks, but CPU tests (like Cinebench and TSbench) show heavy throttling.
In ThrottleStop Limit window: “EDP Other” warning under the Ring column continues to flash, along with multiple yellow/red flags for core and ring under light to heavy load. Upon severe stress the PL2 warnings also start flashing for core, gpu and ring under TS Limits.
HWiNFO logs also show thermal throttling for both CPU and Ring domains.
Steps tried so far:
Checked and restored BIOS to latest version (original version from repair).
Resetted Windows and Acer PredatorSense configurations.
Tried limiting CPU turbo via Windows power settings (99 % cap), with negligible effect.
Cleaned out fans and vents; no dust blockages detected.
Reapplied thermal paste and reseated heatsink properly.
Are there firmware or EC settings that could have been modified during repair, enforcing a lower PL1/PL2 power limit or PROCHOT offset, causing excessively early throttling—even when idle? What steps can I take to check and alter the power limit?
I haven't meddled with TPL settings in throttle-stop but the PL1 and PL2 values are respectively 70 and 107, with turbo time limit of 56.
The cine-bench multi thread score is also coming to 400 which is quite subpar for a cpu like this. What could be the cause of such severe throttling and how to fix this?
