The only way to find out if the Intel Turbo Boost Technology is or not enable will be on BIOS.
I recommend you to post your inquire on Acer community or get in contact with this company so they can explain you how to enable this technology.
This feature comes enable by default in our motherboards, but in your case, it may be disable by your computer manufacture.
I am using the Intel Turbo Boost Technology Monitor 2.6 in my system and it shows the processor speed correctly.
Hello Sylvia, thanks for the reply.
I already go into my BIOS, but I can't find my Intel Turbo Boost Technology. It only shows some basic options only, no advanced options. At the very top of the screen, I think it shows the BIOS name, "Phoenix SecureCore Tiano Setup".
I will try to ask help in Acer community too. Hope I can get an answer for my problem.
Thanks for trying to help me, Sylvia.