Mt Bios [best] | Hp 500b

| Problem | Solution | |---------|----------| | “No boot device” after SSD install | BIOS lacks AHCI; use IDE mode or install a patched BIOS (if available). | | CPU fan runs at full speed | Reset BIOS to defaults; update to latest BIOS. | | USB boot fails | Enable “USB legacy support” and set USB HDD as first boot device. | | BIOS password locked | Short CMOS reset jumper or remove battery for 30 min. |