I have an ACER home PC, which is just over a year old now. Recently when switching on all that happened was an alarm sound. After contacting my local ACER supplier, he explained that the internal battery probably needed replacing, which I then replaced. Ever since, when switching the PC on it reads on the monitor that the CPU has been changed and to either enter the new settings or press F1 to continue, which when pressed, the PC works fine. Please could you explain what needs to be done to resolve this problem?
CPU Settings Changed and Press F1 to Continue Error
BIOS - The Basic Input/Output System
The CPU error might indicate a problem in the BIOS, which is most easily addressed by flashing the BIOS. The Basic Input/Output System - BIOS - is possibly the most important part of your motherboard, and your computer’s process. The BIOS holds the information that the computer uses to POST - the Power On Self Test that the computer uses to boot. Without this information your computer can’t start itself and turn on the basic instructions to communicate with your devices like keyboards and touchpads. Without a BIOS, there would be no turning on your system, and a corrupt or otherwise unreadable BIOS would create a “press F1 to continue” error.
Flash your BIOS
Flashing your BIOS allows it to advance and incorporate the settings it needs to communicate properly with newer devices, in this case your new internal battery. When you flash your BIOS it sets it to the most recent release, which gives it the best chances of detecting and using the latest components.
Locate your BIOS Chip and Manufacturer
The BIOS is stored on a ROM chip on your motherboard. You are going to want to consult the manual for the motherboard that came with your computer. If you aren’t sure of the motherboard model, and if you don’t have your manual, you can look it up online by entering the make and model of your Acer computer. Once you have the model, you can make sure that you access the BIOS utility that is recommended by the manufacturer, by looking it up on that company’s website. There are some risks involved with flashing your BIOS, so you might consider consulting a remote technician once you have gathered all of this information and are ready to proceed. If you are still uncomfortable, you can also contact Acer again, if your system is still under warranty, it might be easier to take it in and have a professional technician perform the BIOS flash.
An excellent product, BiosAgent from Phoenix Technologies, can update your BIOS quickly and safely. Read our BIOSAgent review for more details.
Good luck! If you collect your relevant information and want to go ahead with the flash yourself, write again with the details and I can provide some steps to follow!

Updating the BIOS (Basic Input/Output System) is often a necessary process that helps to maintain the proper functioning of our computers. For example, updating BIOS often fixes problems, offers new features, or resolves compatibility issues. However, updating the BIOS is fairly risky and shouldn’t be entered into lightly. Unless you are experiencing major problems, you should not update the BIOS. When you update your BIOS, the old one is replaced with the new one, leaving your system inoperable if something goes wrong. You should also be aware that flashing or updating your BIOS can fry the motherboard if it is done incorrectly.