intel usb 3.0 not showing device ma used, but usb 2.0 does?

As an example i use a usb mouse, rated at 100ma , and if i go into device manger, then usb devices and click on the usb 2.0 hubs they will give me the ma used of every device connected.

But if i connect my mouse to my usb 3.0 port, the mouse works fine, but i cannot find the ma used, i have intel usb 2.0 and 3.0

The reason i am interested in this is i have a number of usb battery chargers, one seems to use just under 900ma , the same as a usb 3.0 port, now i dont want to damage my usb ports so i would like to monitor the power being drawn from them.

Now i dont really expect to get any response to this thread, as it not likely to be a subject most people are interested in, but i will post it anyway.

Thanks for any help

John.

 

Does the mouse run at USB 3.0? It won't unless specified on the package. Regardless of whether the mouse is plugged into a USB 3.0 or 2.0 port, it will default to the highest speed the mouse can handle, IIRC. Think of it like an LAN port. Just because you have a 1 Gigabit LAN port doesn't mean you will be able to use it at 1Gb. You also need a device like a router that supports 1Gb and the Cat6 cable to make the LAN controller see that the connection is capable of 1Gb and therefore will up the link to the higher speed. Same principles apply to the USB 3.0. You need the device to support 3.0 and the cable in between (if applicable) to support 3.0 as well. As far as the power mA showing up under the USB 2.0 hub instead of the 3.0 hub, that may just be Windows "seeing" the USB mouse as a USB 2.0 device and displaying the power mA in the 2.0 hub's properties even though the mouse is plugged into the 3.0 port. Confused, yet?

 

Hi.

I am not interested in the speed of the usb port, only showing the power being used.

I just plugged an usb 3.0 port powered hdd, into my usb 3.0 port and it still does not show the power being used, then plugged it into the usb 2.0 port and it is showing as using 2ma which cannot be right.

Thanks

John.

 

Which USB hub devices are you checking? The Intel labeled USB hubs in my Device Manager aren't showing the power being used, but the generic USB hubs are.

 

Some motherboards use a designated USB 3.0 driver, while others contain the driver for 3.0 in the chipset drivers. Check your drivers (I hate sounding like a broken record) to see if that's what the problem is.

You could also try using a software utility to control the power output of the USB ports. I know MSI produces one, but there may be a third party application available as well.

 

them all, i open them all up and look for the power tab , only the usb 2.0 hubs have them, once a device is plugged in.

John.

 

Hmm. Weird. Mine show a power tab when a device is plugged into the 3.0 port. You might want to follow prostar's suggestion and check the Intel driver update site. Maybe there's a chipset/USB driver update for them? I agree the power usage for that USB powered HDD should be way more than 2mA.

 

The intel support site, is a pain to find notebook chipset/usb 3.0 drivers

John.

 

You can try there driver update utility: Intel® Driver Update Utility
Its always worked pretty good for me except it runs on ...JAVA. So the choice of using it is entirely your own.

You should also check the lenovo site (your sig says you use a lenovo ideapad). It may have updated drivers specific to your system.

 

I ran that this morning all up to date apart from the video driver, but if i use an non lenovo one i loose brightness control.

I have even been to station-drivers.com , but i get an non compatible message, according to device manger i have an HM76 chipset , it is even listed on the station-driver chipset list but it does not work with the latest 2013 drivers.

intel drivers pour chipsets

John.

 

Didn't want to link you directly to Lenovo, just in case you need a different chipset driver, but you can browse this page.

 

I think part of the design of any USB hub and associated port is strict monitoring of the current. In other words, you should not be able to damage your port, since the port would switch itself off if you try to overload it. At least that's how things worked the last time I (accidentally) tested those limits: I got a pop-up balloon that said the port had been turned off in order to prevent damage. At that point, I had to reboot the system in order to regain use of that port.

 

Hi Pirx

I wish that was so, but i does seem to happen as a net search bring up alot of hits, i just dont want it to happen to me, you would think their would be an app to monitor the power usage of your usb ports.

I thought i would download the usb 2.0 specifications pdf, just had a look 650 pages.

 

I'm coming up empty here too. I've been searching for a third party USB power monitor program. There are a couple out there but they are pretty old and only do USB 2.0. I will keep searching.

 

Yeah, I know, and I am not advocating you "test" your ports this way. However, I also know that many hardware implementations of USB hubs do not conform to the published specs either, at least that used to be the case. It used to be the case that some laptops (some gaming rigs in particular) had hubs and ports that could safely exceed the limits given in the specs, by far.

 

I think some usb ports have better overload protection than others, i suppose it depends if the manufacure cheaps out, and we have no way to really tell, i was looking at a dual headed usb cable, similiar to the ones that come with external 2.5" hdd`s that spread the power over two usb ports.

http://uk.cellphoneshop.net/usbycable.html

John.

 

Although I have never come across a scenario where an end-user has overloaded - and consequently damaged - a USB port, if your battery(ies) is rated to draw over the specification, then it's best to either leave it be, or use a trickle charge (but that's almost the electronic equivalent of watching paint dry).

 

Sorry Tinderbox. But I haven't found any program that can read or monitor a USB 3.0's power usage. But all the other tekkies I've asked said it should work just like 2.0. When you plug a 3.0 device into a 3.0 port, the 3.0 drivers should register it's power draw in the power tab. They keep saying if the power draw doesn't show up, then it's a bug in the driver files. It may be time to approach Intel and send them an email asking if this is an known issue.

 

thanks radji for you efforts , but it`s not just intel usb 3.0 that i have found does not show the ma used, amd usb 3.0 and Renesas usb 3.0, i don't remember them showing it either, i have had a few notebooks.

topic closed

John.

 

don't know if this will help at all, presdently jusing usb 3.0 and can't update yet my old drvier is dated 5/21/12 new is 1/8/13;
http://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=21129

Edit; No power tab for the 3.0..............

Edit; the only thing I can see as a suspect is that with USB 2.0 generic hub s0-s6 are supported under power capabilities but USB 3.0 seem to only have s0 and s3-s5 supported, S1 and S2 seem to be unsupported.............

 

So it`s not just me, post 18 had me worried, thanks for the new driver, is it just me or is the usb 2.0 ports since the driver update now letting you know that there is 500ma available on this port, i dont remember seeing that before, but alas no power tab for usb 3.0 , so they removed a feature i liked.

Thanks

John.

 

That sounds right. 100mA for USB 2.0, which will supply up to five unit loads. 100 x 5 = 500mA. It's nice that the updated driver is showing you that now.