Checksum error

[Steven5494]

I have an HP G60 that I had to disassemble in order to access the CPU to apply thermal compound on. I had left the laptop disassembled over night and when I put it back together the next day, I receive a message upon startup saying “checksum error”. The keyboard will not work disabling me from entering the BIOS to use the last know BIOS settings. Please if anyone has any ideas on what I can do the fix this problem, let me know. Thank you.

[The_Fossette]

@Steven5494,

Welcome to the HP Support Community!

I reviewed your post and I understand that you are getting a checksum error on startup.

Don’t worry, I assure you I will try my best to get this sorted.

The error you are getting indicates that a Basic Input/Output System (BIOS) test failed.

There are two main reasons why a BIOS test fails:

• The battery on the motherboard has lost its ability to supply power. The system time and date are also affected by a bad battery.
• The BIOS was updated "incorrectly". This can happen if power is lost while updating the BIOS, or when the BIOS is updated with an update that was not downloaded from HP, or when a certain virus or malicious program modifies the BIOS data.

I recommend you follow the steps in the below article to resolve this issue.

https://support.hp.com/in-en/document/c01368145

Let me know how it goes and you have a great day!

If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!

Cheers!