PC, not turning on after enabling Platform Key (PK) in the bios

Posted by Ladvace@reddit | buildapc | View on Reddit | 9 comments

Hi, so today I was resetting my PC to reinstall Win11, and working on it by mistake (more or less), I enabled Platform Key (PK) in the bios. After that, my PC was not turning on anymore.

when I turn it on both the CPU and GPU fan run, but no signal on the monitor, I see 3 red lights "alternating", CPU, VGA, and DRAM. I tried removing the motherboard battery to try to reset the motherboard but without much success.

tell me I didn't fuck up completely my PC.

motherboard: Aorus B450 AORUS ELITE

thanks in advance

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Sorry_Reputation_837@reddit

Pour ceux qui ont fait la même erreur et veulent retourner à leur réglage de base : 1. Retirer la pile cmso 2. Débrancher l'alimentation de la carte mère 3. Attendre au moins 30 sec (le bios sera remis à l'état par defaut) pour rebrancher 4. Debrancher la carte graphique de votre cm (retirer son alim et retirer du pci) 5. Brancher la carte mère à votre écran 6. Désactiver le secure boot et réactiver le csm

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Sea_Survey4338@reddit

Ça marche vraiment ?

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Sea_Survey4338@reddit

Ça marche vraiment?

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deleted_by_reddit@reddit

[removed]

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Alexgun1798@reddit

Got this problem with the secure boot for Battlefield 6. I did the same mistake with PK but then i flash the bios with an usb key and it was all good. If you have the chance to have the option on your Mother board.

Then for those having this problem to activate the secure boot. Set Secure Boot Mode to "Custom" then click "Expert Key Management". If secure boot isn't in your bios desactivate "CSM" ONLY IF YOU GOT AN UEFI bios. For my case i desactivate CSM and the secure boot option appeared.

Then at the top of the screen, you should see "Vendor Keys" and "Valid".

If you do see "Vendor Keys" and "Valid", then you can click on "Restore Factory Keys". Don't reboot and check the status it should change to "User", "Enabled", and "Active". You are now safe to save and Exit the bios. This worked for me i have a B550 AX Elite V2 from Aorus.

Before doing anything prepare an usb key with your bios to flash it in case of wrong manipulations.

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Repulsive_Fly_5067@reddit

Comedi o mesmo erro ja tentei tirar a bateria da placa mae ja tentei curto com a CLR_CMO nos dois pinos e nada nao sei mais o que fazer

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Any_Acanthaceae617@reddit

Got this problem fort Battlefield, please can you just explain in more detail or refer me to a video that explains how to flash the bios with an usb key ?

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Longjumping_Yak_9365@reddit

Faz o seguinte, liga o seu pc, deixa ele ligado por uns 1 ou 2 minutos, sem vê nada na tela (até pq não dá vídeo) aperta F9 e aperta a tecla "entre" e depois vc aperta F10, o seu pc vai reiniciar a BIOS. Todas as modificações que vc fez na bios vai resetar.

Qualquer coisa me chama