Z97 Extreme 4 slow internal & USB 3.0 speeds
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=15704
Printed Date: 02 Aug 2025 at 9:03pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Z97 Extreme 4 slow internal & USB 3.0 speeds
Posted By: dka56
Subject: Z97 Extreme 4 slow internal & USB 3.0 speeds
Date Posted: 31 Aug 2020 at 1:32pm
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Seems that I cannot get the USB 3.0 speeds out of my PC. Whether it?™s my Akasa AK-HC-07BK card reader, or the USB 3.0 ports on the rear of the motherboard. Using the proper cable, through the rear USB 3.0, the download speeds are slow, sub 100 mb/s slow. Also, even drive transfer speeds are painfully slow. Taking a video from two internal SSD drives (850 EVO) I?™m getting 58 mb/s transfer speed. Curious as to what to check. CPU is i7 4790K, 2x8 GB G-Skill DDR-3 2400 Trident-X. |
Replies:
Posted By: Xaltar
Date Posted: 31 Aug 2020 at 9:03pm
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What OS are you running, win 10? Make sure you have your intel chipset (inf) drivers installed. It sounds like your OS is defaulting to legacy SATA and USB speeds. ------------- 
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Posted By: dka56
Date Posted: 01 Sep 2020 at 1:50am
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Yes Win 10. I tried restart and enter BIOS but don't have the option upon restart. We didnjust recently switch to a Corsair K70 USB keyboard. I swapped back to the old non-USB keyboard but still no option to enter BIOS on restart. |
Posted By: dka56
Date Posted: 01 Sep 2020 at 2:10am
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I was able to get into the BIOS after a reset. This is the configuration: USB Controller--------------Enabled Intel USB3.0 Mode-----------Smart Auto Legacy USB Support----------Enabled Legacy USB 3.0 Support------Enabled USB Compatibility Patch-----Disabled Third Party USB 3.0 Controller-Enabled |
Posted By: dka56
Date Posted: 01 Sep 2020 at 2:27am
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So I have to confess I made an error. I was transferring files and the drive I chose was a WD Black magnetic drive....my mistake. The USB 3.0 speeds are still slow but the drive transfer was user error. |