Can flashing bios increase drastically temperature of CPU?

Hello i flashed my bios successful this week and i noticed that my cpu temp is way more than before.Before i was getting 80-85C for most games for hour or two playing and now i get 99C in just 10minutes..It would probably shut down if i dont track those temp closely.What could be the reason?i even undervolted my cpu by 100mv and i get still after 10minutes near 100C.Maybe bios changed something with my fan settings or some other setting related?fan is working but i dont know how to adjust it.I thought that maybe thermal paste is gone but i have my notebook just 8months and that would be bad luck if the thermal paste is gone in some weak when i flashed bios.What are your opionion guys?Please suggest me some solutions cause i thought to send it to service to change the termal paste and clean it even thought im pretty 100% sure that dust cant be the problem cause i used to clean it with my vacuum cleaner outside.Please suggest me what should i look for in settings cause maybe thats what my flashed bios changed.Btw my notebook is Acer v3 772G with 760m.Thanks

 

Unless the bios updated the voltages for the CPU core, I dont see what else could be causing this. If you hear the fans blasting then I doubt the fan profiles are bugged. Maybe you should flash back to the older BIOS if possible and test.

 

yeah fan is working..now i checked and its written under power management active in both situations..I noticed that even in indle the temps are higher 7-8C than before flashing..i dont think that voltage is also.I got a i7 4702mq and even undervolted with 100mv it still goes crazy.

 

Can you revert back to the older bios and test?

 

huh almosted deleted my back up.Im lucky i have it in sent emails cause i sent it to a guy to get me a modded bios.Its called backup1.13bios..What commands i should write in fpt64 through cmd.exe for the file name backup1.13bios?