I had this error come up right after I finished upgrading Windows 7 to Windows 10. It happened after the whole upgrade and all the update installations were done completely. Satisfied with my upgrade experience, I shut down my B490 laptop and went to take a nap. I came back from nap and turned it on for a normal day's work, only to get two beeps and the Fan error message.
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'''Short answer:'''
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The fan was working completely fine, and it didn't seem like anything would be wrong with the fan hardware per se. The laptop had not moved a millimeter from where it was, so I doubted the connection getting lose. I tried blowing air into the holes. Some dust came out, but it didn't help.
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If you just finished upgrading to Windows 10 and started getting the error, get into the BIOS (F1 key after powering up) and '''reset to default'''. Be sure to have "OS optimized defaults" set to '''Disabled''', unless you do use UEFI-based Secure Boot in the system. If you're unsure, try both types of defaults.
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What did help was to reset the BIOS to default. You have to be careful here, to NOT choose the OS optimized default (unless you are really using UEFI secure boot). I didn't realize and I applied OS optimized default first. No real harm though, the computer just showed boot menu and the hard disk wouldn't boot. After running some simple diagnostic tests I found in that menu, I went back to the BIOS and restored the default again, but this time NOT the OS optimized defaults. Couple of restarts, and we're back in business.
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''Thanks Bander for the tip in your comment.''
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'''Backstory:'''
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I had this error come up right after I finished upgrading Windows 7 to Windows 10. It happened after the whole upgrade and all the update installations were done completely. Satisfied with my upgrade experience, I shut down my B490 laptop and went to take a nap. I came back from nap and turned it on for a normal day's work, only to get two beeps and the ''Fan error'' message.
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The fan was working completely fine, and it didn't seem like anything would be wrong with the fan hardware per se. The laptop had not moved a hair from where it was, so I doubted the fan's pin connection getting lose. I tried blowing air into the holes. Some dust came out, but it didn't help.
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What did help was to '''reset the BIOS to default'''. You have to be careful here, to NOT choose the OS optimized default (unless you are really using UEFI secure boot). I didn't realize and I applied OS optimized default first. No real harm though, the computer just showed boot menu and the hard disk wouldn't boot. After running some simple diagnostic goodies I found in that menu, I went back to the BIOS and restored the default again, but this time NOT the OS optimized defaults. Couple of restarts, and we're back in business.
So if you are here because you just upgraded to Windows 10 and installed all the updates, and are suddenly getting fan error, just reset the BIOS to defaults as above. It would seem that some changes the Windows 10 upgrade or any of the updates makes would have screwed up some BIOS compatibility and caused the current BIOS settings to cough up the misleading error.
I had this error come up right after I finished upgrading Windows 7 to Windows 10. It happened after the whole upgrade and all the update installations were done completely. Satisfied with my upgrade experience, I shut down my B490 laptop and went to take a nap. I came back from nap and turned it on for a normal day's work, only to get two beeps and the Fan error message.
The fan was working completely fine, and it didn't seem like anything would be wrong with the fan hardware per se. The laptop had not moved a millimeter from where it was, so I doubted the connection getting lose. I tried blowing air into the holes. Some dust came out, but it didn't help.
What did help was to reset the BIOS to default. You have to be careful here, to NOT choose the OS optimized default (unless you are really using UEFI secure boot). I didn't realize and I applied OS optimized default first. No real harm though, the computer just showed boot menu and the hard disk wouldn't boot. After running some simple diagnostic tests I found in that menu, I went back to the BIOS and restored the default again, but this time NOT the OS optimized defaults. Couple of restarts, and we're back in business.
So if you are here because you just upgraded to Windows 10 and installed all the updates, and are suddenly getting fan error, just reset the BIOS to defaults as above. It would seem that some changes the Windows 10 upgrade or any of the updates makes would have screwed up some BIOS compatibility and caused the current BIOS settings to cough up the misleading error.
I had this error come up right after I finished upgrading Windows 7 to Windows 10. It happened after the whole upgrade and all the update installations were done completely. Satisfied with my upgrade experience, I shut down my B490 laptop and went to take a nap. I came back from nap and turned it on for a normal day's work, only to get two beeps and the Fan error message.
The fan was working completely fine, and it didn't seem like anything would be wrong with the fan hardware per se. The laptop had not moved a millimeter from where it was, so I doubted the connection getting lose. I tried blowing air into the holes. Some dust came out, but it didn't help.
What did help was to reset the BIOS to default. You have to be careful here, to NOT choose the OS optimized default (unless you are really using UEFI secure boot). I didn't realize and I applied OS optimized default first. No real harm though, the computer just showed boot menu and the hard disk wouldn't boot. After running some simple diagnostic tests I found in that menu, I went back to the BIOS and restored the default again, but this time NOT the OS optimized defaults. Couple of restarts, and we're back in business.
So if you are here because you just upgraded to Windows 10 and installed all the updates, and are suddenly getting fan error, just reset the BIOS to defaults as above. It would seem that some changes the Windows 10 upgrade or any of the updates makes would have screwed up some BIOS compatibility and caused the current BIOS settings to cough up the misleading error.