Bios Ps 2 -

Overview The BIOS-level PS/2 feature enables native communication between the motherboard’s PS/2 ports (usually 6-pin mini-DIN) and the system firmware before an operating system loads. This ensures full functionality of PS/2 keyboards and mice during POST, boot menu navigation, BIOS setup, and OS installation.

| Setting | Description | |---------|-------------| | Legacy USB Support | When disabled, PS/2 remains fully functional while USB input may not work pre-OS. | | PS/2 Mouse Support | Enable/disable PS/2 mouse initialization during POST. | | PS/2 Keyboard Support | Usually always on; can be disabled to free IRQ1 for rare conflicts. | | Boot from PS/2 | Not a boot device itself, but enables keyboard input to select boot menu options. | bios ps 2