Hello all.

I have a HP 6300 MT that I have upgraded the PSU, CPU, Ram and GPU. Because of these UPGRADES, specially the PSU, I always got the 515 FAN error. When the error came up I just press the F1 and that was that; It never bother me until recently.





Hello,
Hello, A couple of days ago I purchase the Logitech G915 wired/wireless keyboard. After an update, which require me to restart the PC the 515 error came up. I immediately click on the F1 key of the G915. To my SURPRISE I could not go pass that. I in even tried restarting the pc again and this time I tried other F keys (F1-12), got no where. I was only able to move pass the 515 error by using my previous wireless keyboard. Dint seem to have any issues with other keyboards, wireless or wireless. I tried to use the Logitech on wired and wireless mode, install and remove Logitech GHub and still nothing.

Just to MAKE sure it wasn't a faulty Logitech G915, I tried it on a PC and a laptop. I had no issues on either device. I can hit any F1-12 w/o issues.


Any suggestion is greatly appreciated.Had an issue like this before and my solution was to keep the old keyboard connected and just not in use along side the new keyboard. When needing to press F1 to continue tap the F1 on the old keyboard and then the new keyboard functions when the OS is booted. But there is no ability to brute force a keyboard to communicate with the system at the POST level through USB unless the system and that USB keyboard are able to handshake at that level. It APPEARS that the handshake happens after this with the newer keyboard when the OS loads the driver.