USB 3.0 Ports are not working, only data rates like USB 2

andreasoppliger · Feb 11, 2015

I both my ASUS Zenbook UX301 in October 2014 with Windows 8. The shop in Hong Kong upgraded to 8.1. I am recognice that the ports are not working with USB 3.0 only the speed of USB 2.0 Can somebody tell me the reason and what to do to make them work USB 3.0. My USB flash sticks and external hard-disk are all USB 3.0.

i7Baby · Feb 11, 2015

Is the laptop compatible with windows 8.1?

Check Control Panel, Device manager to see if the usb devices are working and their drivers are up to date.

andreasoppliger · Feb 11, 2015

i7Baby :

Yes, the laptop is compatible 8.1. According to the Device manager the usb works.

i7Baby · Feb 11, 2015

All the usb devices?

If you plug a usb2.0 device into a usb3.0 port it only works at usb2.0 speeds.

andreasoppliger · Feb 11, 2015

i7Baby :

I know that, all my device are USB 3.0
I have a problem with my USB 3.0 after a fresh windows install I think. Although my USB 3 show up in the device manager as USB 3 ports, 2 of them. But the transfer rate is between 3 to max.10 mb.

I use WD my passport 2 TB and Sandisk 32GB both USB 3.0.

i7Baby · Feb 11, 2015

If you have installed drivers after the windows install and the devices are working properly then you will be fine.

10MB/s? - is OK.

They might be usb3.0 but they will have a transfer rate of their own. The Sandisk should have it written on it.

andreasoppliger · Feb 11, 2015

i7Baby :

USB 3.0 should have up to 100MB per second not 10, with USB 2.0 i have 10MB or even more.

i7Baby · Feb 11, 2015

Yep - SHOULD. Like sata 3 should have transfer rates up to 6Gbps. But we know that hard drives only do 100MB/s - 800Mbps. Depends on the speed of the device. There's now usb3.0 usb sticks that can hit 200MBps. So try a faster Sandisk.

nick779 · Feb 11, 2015

i7Baby :

Most USB 3.0 external hard drives can easily hit over 50MBps, flash drives are much more of a gamble.

I have a 1TB seagate expansion that normally transfers at 90-110MBps, my 16gb Sandisk extreme transfers at around 100+ as well.

It sounds like your USB 3.0 drivers arent installed.
When you go into the device manager, is anything under "unknown devices"?

andreasoppliger · Feb 11, 2015

nick779 :

HI Nick,
No, there is not any unknown devices. I was surfing in many forums seems like others have this problem as well, looks like after upgrade from Windows 8 to Windows 8.1.
Looks like is a Windows problem.

Search

USB 3.0 Ports are not working, only data rates like USB 2

andreasoppliger

Reputable

i7Baby

Titan

andreasoppliger

Reputable

i7Baby

Titan

andreasoppliger

Reputable

i7Baby

Titan

andreasoppliger

Reputable

i7Baby

Titan

nick779

Honorable

andreasoppliger

Reputable

TRENDING THREADS

Latest posts

Moderators online

Share this page