low charging speed on USB 3.1 Gen2 Type-C
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=21140
Printed Date: 06 May 2024 at 11:28am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: low charging speed on USB 3.1 Gen2 Type-C
Posted By: astins
Subject: low charging speed on USB 3.1 Gen2 Type-C
Date Posted: 23 Jan 2022 at 7:21pm
Hello. The motherboard has a USB 3.1 Gen2 Type-C connector. The Asrock website ( https://www.asrock.com/MB/AMD/B450M%20Pro4/index.ru.asp" rel="nofollow - https://www.asrock.com/MB/AMD/B450M%20Pro4/index.ru.asp ) indicates support for this connector - 3.0A, but when you connect the phone to this connector, the current does not rise above 380mA . What could be the problem? The wire that I connect the phone to this Type-C connector on the motherboard supports 5A.
Configuration:
ASRock B450M Pro4 BIOS Version P5.30
CPU type AMD Ryzen 5 3600, 4200 MHz (42 x 100)
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Replies:
Posted By: threadzipper1957
Date Posted: 15 Mar 2022 at 11:29pm
Usually it is not the USB port but the cable that you use.
When you buy a USB C to C cable, on some shops, you see that one cable claims 5Gb/s, and other claim 10Gb/s.
Also keep in mind that USB ports are always working in pairs of 2, which is called a Hub, on B450M pro 4 you see that the USB C is paired with another Light Blue USB A port, they both ar connected to the same pioint on the board, and both must share resources.
I tested, conencting my pgone via the 5GB cable, and it took almost 5 hours to charge, did the same test later with the 10Gb cable and guess what, around 2 hours.
Try with a USB a to C cable (10 Gb/s) and see if this is betetr, if it is on the same hub.
If yes (which is often the case), it is definitely the USB cable, not the board
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Kind Regards
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