Processor speed is stuck at 0.78ghz

[jaitra1264]

I have 2 identical laptops with identical specs (i3-4005u, 4gb ddr3)

I noticed one day that whatever happened, the cpu clocks on one laptop won't go above 798 Mhz,

I tested both machines on different OSs for months without battery, so it wasn't a battery problem huh.

Then I tried switching the power brick from the one that worked fine to the one whose cpu won't ramp up, and it worked.

So I concluded that it was due to a powerbrick limitation it didn't work well. Both powerbricks for both laptops were bought from 3rd party vendors.

I hope this is helpful for anyone facing the same issue on laptop.

There are some other solutions you should try first,

Remove the battery and start on charger power and restart and install battery.

Also try disconnecting  the charger and reconnecting it, that worked too when I had installed battery in the laptop which had its cpu clocks stuck at 798 Mhz.