AMD Motherboards - usb to ps2 keyboard adapter

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usb to ps2 keyboard adapter

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=23562
Printed Date: 04 Jul 2025 at 6:41pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: usb to ps2 keyboard adapter

Posted By: bjlockie
Subject: usb to ps2 keyboard adapter
Date Posted: 21 May 2022 at 5:13am

I have an asrock b450m pro4 with one ps2 port (coloured purple and green).
I have a usb mouse and usb keyboard.
The goal is to power on with a ps2 keyboard.
I have a purple usb to ps2 adapter that I plugged the usb keyboard into and then connected to the motherboard.

The keyboard lights up (backlight) like it is connected but I can't type.

A. Do I possibly need a splitter cable?
B. Do I possibly need a green ps2->usb adapter (does the colour matter)?
C. Do I possibly need to reconfigure X?

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ASRock B450M Pro4
16 GB DDR4, 500 watt PS, AMD Ryzen-5 5600, NVidia GTX-1050, 5.70 BIOS

Replies:

Posted By: bjlockie
Date Posted: 22 May 2022 at 8:08am

Apparently some keyboards don't support the PS2 protocol anymore.

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ASRock B450M Pro4
16 GB DDR4, 500 watt PS, AMD Ryzen-5 5600, NVidia GTX-1050, 5.70 BIOS