tópico Re: usb 3.0 not working at full speed em Notebooks & Netbooks

usb 3.0 not working at full speed

Joker — Tue, 18 Mar 2014 16:52:05 GMT

I have the Acer p243-m which came with win7 ... After installing windows 8 , I saw that the usb 3.0 drivers were not working at full speed .. If previously I got a speed of 100 mbps from my pendrive now it gives only 28 mbps ... So , what do I do .. Do I update my bios ??? If so , please direct me , I mean the exact links and which file to download and use coz bios updating is risky AFAIK ...

Re: usb 3.0 not working at full speed

JackE — Wed, 19 Mar 2014 03:22:45 GMT

Yep, risky. You prolly won't like my advice. But I suggest you upgrade back to Win7 if your recovery partition is still intact.

Jack E/NJ

Re: usb 3.0 not working at full speed

Joker — Wed, 19 Mar 2014 12:27:49 GMT

Bro , isn't there any other solution ??? Please try and think of anything ... Coz after using Win 8 , Win 7 seems a bit old ... Besides I have many softwares installed ... You can take a bit of your time but please try and think of any other solution ...

Re: usb 3.0 not working at full speed

JackE — Wed, 19 Mar 2014 14:07:51 GMT

Did you use acer or generic upgrade disks?

Jack E/NJ

Re: usb 3.0 not working at full speed

Acer-Cory — Wed, 19 Mar 2014 15:42:43 GMT

I might suggest updating your chipset drivers from our website.

Are you using the same device for testing the speeds? There are some power requirements and I believe that can affect speeds with USB 3.0

Re: usb 3.0 not working at full speed

Joker — Thu, 20 Mar 2014 14:36:45 GMT

No , I am not using any upgrade disks .. I downloaded the ISO and then installed it clean ... And I am using the same device as I did on Windows 7 ...

Re: usb 3.0 not working at full speed

JackE — Thu, 20 Mar 2014 17:44:06 GMT

Try Acer-Cory's suggestion and update the drivers.

Jack E/NJ

Re: usb 3.0 not working at full speed

Joker — Sun, 23 Mar 2014 02:43:58 GMT

Nope that didn't workout either ...

Re: usb 3.0 not working at full speed

JackE — Sun, 23 Mar 2014 17:17:40 GMT

This may be related to your USB3 issue. http://www.intel.com/support/chipsets/usb3/sb/CS-033870.htm Apparently Intel didn't do a specific Win8 controller due to MS designing a native Win8 controller. So Intel recommends uninstalling the Win7 host controller *before* trying to install Win8. Since you used a clean iso install, you may not have gotten an incompatiblity warning and the Win7 controller is still there. Perhaps you can go to Device Mgr or Uninstall to check what controller driver is actually on your system.

Jack E/NJ

Re: usb 3.0 not working at full speed

Joker — Thu, 27 Mar 2014 14:38:27 GMT

Guys , I uninstalled all the usb drivers including root hubs and then restarted the PC .. Then I did a scan for hardware changes and the drivers reinstalled ... Then another day , I plugged in my friend's usb 3.0 hdd and it read at max 30MBps ...

So , I unplugged the device and restarted my PC and then tried copying and it gave 130MBps at start and then dropped to 80MBps on an average .. Now , the problem is that I can't always restart the machine just to use the usb 3.0 drive ... So , what do you guys recommend now ????

Re: usb 3.0 not working at full speed

JackE — Thu, 27 Mar 2014 15:07:10 GMT

Try uninstalling the drivers again. Power down. Then before power back on, re-insert the USB 3 drive and leave it there. Then power on and see what happens. I'm not sure about how the allegedly 'native' Win8 USB driver automatically installs. But it may be that, for backward compatibility reasons, the native driver defaults to lower speeds if it doesn't find a USB 3 drive in the slot. If this is indeed the case, then I guess for the time being you'll just have to keep a USB 3 drive in the slot to keep native driver from defaulting to lower speeds. Perhaps there is a way of changing this annoying default behavior in device mgr USB or hub properties?

Jack E/NJ

Re: usb 3.0 not working at full speed

Joker — Fri, 28 Mar 2014 14:18:51 GMT

Yeah , I hope there is coz as you said it's a temporary fix !!!

Re: usb 3.0 not working at full speed

JackE — Fri, 28 Mar 2014 15:32:12 GMT

Are you using a wireless mouse with a USB2 dongle?

Jack E/NJ

Re: usb 3.0 not working at full speed

Joker — Fri, 04 Apr 2014 14:48:31 GMT

no no , i use the touchpad forouse

Re: usb 3.0 not working at full speed

JackE — Fri, 04 Apr 2014 15:33:00 GMT

Yes, I understand you're using the touchpad.

But do you also have a USB dongle attached for ***any kind of peripheral device*** , not just a mouse?

Jack E/NJ

Re: usb 3.0 not working at full speed

Joker — Sat, 05 Apr 2014 09:51:58 GMT

No none ... I also noticed one strange thing ... When I boot my laptop after shutting it down then at the boot screen , the option to enter the bios via F2 key is not shown and even if I press the F2 key it wont enter the bios , but if I restart then that option is shown and on pressing I can enter into bios ... I think they might be related some way or the other ... The thing that bothers me is that my desktop came with windows vista but after I installed windows 8 on it , it showed me the option to enter into the bios !!! So , why not here ??? In windows 7 , everything worked fine and on 1st boot I was shown that option ...

Re: usb 3.0 not working at full speed

JackE — Sat, 05 Apr 2014 16:45:33 GMT

Machines that ship with Win8 usually have another faster-startup type of bios called UEFI that doesn't work like the old legacy bios likely in your vista machine. The new UEFI bios is accessed AFTER Win8 loads. This might partly explain why you can access your old legacy bios on a warm vs cold boot. I doubt it has much to do with your USB speed and touchpad problems. It likely has more to do with Win8. In my opinion, and not necessarily anybody's else's --- WinVista can usually be nicely upgraded to Win7 as you already know --- Win7 can be downgraded to Win8 --- just like WinXP could be downgraded to WinVista --- and so on and so forth. I think Win8/8.1 is destined to become about as popular with the masses as WinVista. 8^) In other words, the masses shouldn't have to deal with these frustrating incompatiblities with different WinOS on machines that are both less than a few years old.

Jack E/NJ

Re: usb 3.0 not working at full speed

PenguinJim — Sun, 06 Apr 2014 11:31:53 GMT

Windows 8.1 is a decent OS, great for touchscreens, and a ten-minute effort restores the interface to be almost identical to Windows 7.

I wouldn't recommend anyone to pay for it over Windows 7 (unless faster start-up and great touchscreen support is that important to you), but there's no reason at all to avoid it.

Re: usb 3.0 not working at full speed

Joker — Mon, 07 Apr 2014 16:54:13 GMT

Ok but any idea to solve my usb 3.0 problem ???

Re: usb 3.0 not working at full speed

JackE — Mon, 07 Apr 2014 17:42:36 GMT

Try this if you haven't already. Uninstall the native Win8 drivers and hub again. Then try to install the Win7 intel version under Win8 to see how that goes. Report back.

Jack E/NJ