Sub-par CPU performance, 4SNS-IB0R sensor failure
My MBP 2011 is currently running at half-speed or so (Geekbench measures just under 50% score of a normal Early 2011), kernel_task usage has spiked leaving the MBP pretty near unusable. I've done the software fix of removing the .plist from the ACPI_SMC kext and now it's sort of usable, but definitely not pre-fix levels of fast. Power button also requires a few tries to get the MBP running, usually on first press the sleep indicator light slowly lights up and switches off.
AHT indicates a 4SNS-IB0R sensor failure, value 9.166. I've cleaned the logic board but issue still remains. SMC reset changes nothing.
Is it possible to attempt a hardware fix by replacing an SMD onboard or is the board junk?