In my experience, PS2 -> USB keyboard adapters only work when they're shipped with the keyboard. I'm typing on a MS Natural Keyboard now that uses a PS2 -> USB adapter (that came with it) and it works fine on my G5 and my XP machine. This adapter only works with this model keyboard though. 3) If that doesn't help then enter Device Manager reached by right clicking the Start button, go to Mice > Touchpad and then Driver tab. Choose Update Driver, then Automatic to see if it gets a better driver that resolves the problem. If not try Update Driver > Browse > Let Me Pick to try all previously installed drivers. Also not working for me on my Z500, It seems to be an issue to do with the Intel Chipset Drivers. On my system I've had to turn off automatic driver download because it breaks -everything-.. A (temporary) solution that works for me is to litterally go into device manager on the laptop, and uninstall the chipset controller, then restart. First of all，the keyboard must support power on by keyboard, it must be the PS/2 keyboard!! Memo：（1）ASUS BIOS can't support power on by USB keyboard！ （2）If not connect PS2 keyboard, you can't see the option of power on by keyboard！ The steps are below: 1. Press 'Del' or 'F2' in the keyboard after power on, enter into Advanced Mode: To do so, follow the steps bellow: Press Windows key. Type Troubleshooting and then press Enter. Select troubleshooting. Click Hardware and Sound > Hardware and Devices and then click Run troubleshooter. Once you're done, let us know the result. 9 people found this reply helpful. ·. MSI B450-A Pro - PS/2 keyboard not working properly. Hardware Motherboards. keyboard, motherboard, bios. Leafoid February 25, 2020, 10:59pm #1. My Model M is completely unresponsive in the BIOS - even the lock lights won’t come on, and the board explorer reports the PS/2 port as empty. I tried fiddling with USB settings, numlock state, even PS2 mouse & keyboard not working1- run regedit THEN FOLLOW THIS PATH HKEY_LOCAL_MACHINE - SYSTEM - CurrentControlSet - Services - i8042p ps i do not think this is a bios issue as the keyboard works fine until hibernation i say this because updating the bios is the only solution i haven't tried and don't feel comfortable doing This thread is locked. pH4pVDj.