AMD Motherboards - Fatal1ty X399 10GB Port Upload Error?

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Fatal1ty X399 10GB Port Upload Error?

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=11855
Printed Date: 28 Jul 2025 at 5:08pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Fatal1ty X399 10GB Port Upload Error?

Posted By: TheShadow23
Subject: Fatal1ty X399 10GB Port Upload Error?
Date Posted: 12 Jul 2019 at 10:16am

As stated above, I have the ASRock Fatal1ty X399. Just had FIOS GB Ethernet installed and had the FIOS router hooked up to the 10GB Ethernet port. During speed tests, I was getting ~900 MBps download but it would flatline at 0 and error out during the upload portion. Switching to a normal 1GB port brought the upload speed to about 250-300MBps - but I was curious if anyone else has had errors concerning upload speed for the 10GB port, if mine might be faulty, or if something else is happening I?�m unaware of.

Replies:

Posted By: xhue
Date Posted: 12 Jul 2019 at 1:34pm

900Mbps for a 10Gbps port is not good.

1st - you need a quality Cat.7 (or above) cable, properly crimped. Then you need a recent FW for the router and the NIC. Then - good drivers. Aaaand then - maybe properly tuned iperf3.

Only after all of the above is checked we can start the real troubleshooting.