Bios locked on HP 8100 Elite

[Fabio101]

Good evening, on my HP 8100 Elite with i5 650, during a ram upgrade on reboot the pc froze at the hp gui screen. Then I proceeded to remove the ram module and reset bios via button on the motherboard. Since then, when I turn it on again, I no longer have the HP logo but an intermittent cursor after which a screen appears at the bottom right with the writing HP 8100 SFC, after a few more minutes the usual options F9, F10 etc. always appear at the bottom right. but it doesn't let me activate them (in the sense that if I click F9 on the keyboard it doesn't activate. Needless to say I tried again with other resets but I'm still at this point. Thanks for any suggestions.

[Fabio101 · Accepted solution]

Solved, to reset the bios you have to disconnect the keyboard and mouse, pressing the button alone was not enough.