the bios you helped me with still gives the error but gives a video, I already discovered the solution and I'm giving it to you in case it helps someone else, you have to put in a disk with the system and put on that disk this file "maxsecurity" in the C: folder of the system, the files and the folder are hidden, then you have to put in the folder options, view hidden files and disable the box to hide protected system files, with that put the disk in the compumax and it no longer gives the error, then go to the bios and the advanced section, where it says Customized BIOS BOOT, give it...

I need you to remove the BIOS key from this Compumax please, it shows a security error as soon as it turns on and from there it does not advance to Windows or anything, the PC model says it is a Compumax Onix Series with serial number 2323BPB02124 and the board model ADLN201D_MB_V02...

You're absolutely right. I put heat tape on it and it stopped beeping and gave a video. Thanks for the info....

Could someone please help me, I've tried other bios and it doesn't work, could you help me with the one I sent please?...