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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?
BIOS ROM Checksum Error
About the BIOS ROM Checksum Error
BIOS ROM Checksum errors indicate that there is a problem in the contents of the BIOS code. Checksum is a protective feature that reads the ROM - or read only memory - that holds the BIOS code and ensures that it is correct. Each time you boot your computer the Checksum reads the ROM and compares it against its own value to check for errors. This error means that the BIOS ROM chip or another component on your computer's motherboard is damaged, corrupt or faulty.
Troubleshooting Motherboard Errors
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There are some steps that you can follow to further diagnose and troubleshoot your motherboard and possible component error. If you have made any recent changes to your system, you might have damaged a component or corrupted a connection. If you have had your computer open recently, you should open it again and check for any loose chips or cable connections. First make sure to turn off the computer and remove the power source and battery.
Open the computer, taking care to ground yourself and make sure no electric charges touch the inside of your computer. Make sure that all wires and cables are tight and that there are no loose screws, pins or chips. On the motherboard itself, make sure that the screws that hold it in place are not touching any wires, and that the board isn't touching the external casing.
Adjust Your BIOS Settings
Next, you will likely have to adjust your BIOS settings. Before you make any changes to the BIOS, you should make a record of its current settings. We will first set the BIOS to make the system as stable as possible for troubleshooting, but you will later reconfigure the settings to optimize performance.
How to Adjust Your BIOS Settings
The command to enter BIOS differs between computer models, but for many it is either F1 or F2. Check your computer model for the appropriate command and then press this key as your computer is booting to enter the menu. In BIOS, choose Auto Configuration with Optimal Settings and them make sure to choose the option to save and exit. This should set the BIOS and repair the damage that was interfering with your boot sequence. For more information concerning your specific computer model you can check your user manual under BIOS settings.
Is your computer an Open Invitation for HACKERS? Download free version of Sparktrust Inspector to identify vulnerabilities and problems on your computer (and even your WEBSITES)!
Kate Dubensky | December 8th, 2008
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