boot by pressing key on USB keyboard
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=23396
Printed Date: 21 Mar 2025 at 9:34am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: boot by pressing key on USB keyboard
Posted By: bjlockie
Subject: boot by pressing key on USB keyboard
Date Posted: 01 Apr 2022 at 2:41am
I have an ASRock B450M Pro4 motherboard with BIOS P3.50 (last for my CPU).
I want to boot by pressing a key on a USB keyboard (like a PS2 keyboard).
Can I do this?
What do I need to set in the BIOS?
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ASRock B450M Pro4
16 GB DDR4, 500 watt PS, AMD Ryzen-5 5600, NVidia GTX-1050, 5.70 BIOS
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Replies:
Posted By: BerMM
Date Posted: 01 Apr 2022 at 10:52pm
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You want a key or key combo that will turn on the PC? AFAIK that isn't possible. There are other options if you can't reach the power button on the case. I'm using this https://www.amazon.com/gp/product/B08GFM9GBB/" rel="nofollow - https://www.amazon.com/gp/product/B08GFM9GBB/ . There are even key fob remotes https://www.amazon.com/SilverStone-Technology-Wireless-Computer-SST-ES02-USB-USA/dp/B0859PKPKT/" rel="nofollow - https://www.amazon.com/SilverStone-Technology-Wireless-Computer-SST-ES02-USB-USA/dp/B0859PKPKT/ though maybe this https://www.amazon.com/Computer-LITROK-External-Motherboard-Extension/dp/B09CZCJYSL/" rel="nofollow - https://www.amazon.com/Computer-LITROK-External-Motherboard-Extension/dp/B09CZCJYSL/ is closer to what you want.
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Posted By: bjlockie
Date Posted: 02 Apr 2022 at 8:17am
Is it technically impossible?
If yes, why can a PS2 keyboard do it?
Did you have any problem with the length of the wire on the one you bought, it doesn't look long enough to go from the back to the from of the motherboard where the power connector is?
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ASRock B450M Pro4
16 GB DDR4, 500 watt PS, AMD Ryzen-5 5600, NVidia GTX-1050, 5.70 BIOS
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Posted By: BerMM
Date Posted: 02 Apr 2022 at 1:26pm
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It's been so long since I've used PS/2, but AFAIK USB keyboards can wake from sleep/standby but not power on, probably because USB ports are monitored while asleep/standby but not while shut down. As for the remote button I use, there are two parts. One is a 1 foot cable that runs from the motherboard headers to an expansion slot bracket and the other is a 4 foot cable that goes from that bracket to the button. I haven't tried it, but it appears that the cable on the button can be extended using a type A USB 3.0 extension cable.
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Posted By: bjlockie
Date Posted: 21 Apr 2022 at 7:34am
Do you think a ps2 adapter for a USB keyboard would let me press a key to boot?
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ASRock B450M Pro4
16 GB DDR4, 500 watt PS, AMD Ryzen-5 5600, NVidia GTX-1050, 5.70 BIOS
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