https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Thu, 23 Apr 2026 13:48:07 +0000 Sat, 18 Jan 2020 05:01:07 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=13464 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=13464&PID=72078&title=b450-pro4-not-booting-with-usb-plugged-in#72078 Author: Torbi
Subject: 13464
Posted: 18 Jan 2020 at 5:01am

Component:
B450 Pro4 (3.90)
Amd Ryzen 3600 (Stock Cooler)
Corsair Vengeance LPX 16GB (2x8GB) (CMK16GX4M2B3200C16)
Palit GTX 960 4GB
700 Watt be quiet! System Power S6 (PSU)


Hey guys, i need help before i return my (maybe faulty) B450 Pro4.
I checked every connection twice and built PC's at my job, so yes everything is plugged in the right way.
Everytime my keyboard or anything else is connected to the USB-Ports it wont boot. CPU-Fan, PSU-Fan, and Graphicscard-Fan spins but not the Case-Fans.
I cant power off while holding the power button and the beeper says nothing.
If i unplugg the USB devices it starts up normaly.
So is my B450 Pro4 faulty? Should i return it or is there a fix (maybe comming).
Any BIOS settings that could fix my problems?

Thanks in advance :)]]> Sat, 18 Jan 2020 05:01:07 +0000 https://forum.asrock.com/forum_posts.asp?TID=13464&PID=72078&title=b450-pro4-not-booting-with-usb-plugged-in#72078