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Laptop only accepts 2-3 USBs


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#1 blueade7

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Posted 17 July 2011 - 12:47 PM

Hi,

Attached to my laptop I have a mouse and a keyboard. If I try to plug anything else in (external hard drive, printer etc) it will start loosing some of the connections (usually no more than 3, sometimes no more than 2), e.g. my mouse will stop working (I then have to unplug the other USBs to get it working again). I have an external usb hub (with its own power supply). Why does it do this? Any way to get around it?

Thanks, Andy

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#2 cryptodan

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Posted 17 July 2011 - 01:13 PM

Please perform the following, so that we can get the exact specs of your computer. This will better assist us in helping you more.

Publish a Snapshot using Speccy

The below is for those who cannot get online

Please take caution when attaching a text file to your post if you cannot copy/paste the link to your post, you will need to edit it to make sure that your Windows Key is not present.

#3 blueade7

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Posted 17 July 2011 - 01:23 PM

http://speccy.piriform.com/results/1xYhu1mfafId2wvvAk0Tv8o

Thanks, Andy

#4 cryptodan

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Posted 17 July 2011 - 01:44 PM

Have you tried updating your drivers for your computer via Dell's website?

#5 blueade7

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Posted 17 July 2011 - 03:10 PM

Hi,
Which drivers in particular?
Dell website offers the following categories of driver for download. See here for the list:
http://support.dell.com/support/downloads/driverslist.aspx?os=W764&catid=-1&dateid=-1&impid=-1&osl=EN&typeid=-1&formatid=-1&servicetag=&SystemID=VOS_N_1320&hidos=WLH&hidlang=en&TabIndex=&scanSupported=False&scanConsent=False

Come to think of it (and testing out the theory), I think its only when I connect my USB hub to the laptop that I get the problems.

Thanks, Andy

#6 cryptodan

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Posted 17 July 2011 - 03:16 PM

Any and all drivers that are relevant to your lap top.

What kind of USB hub is it?

#7 blueade7

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Posted 17 July 2011 - 03:17 PM

A belkin. This one in particular: http://www.amazon.co.uk/Belkin-USB-2-0-7-PORT-BROWN/dp/B00112WMSE/ref=sr_1_4?ie=UTF8&qid=1310933810&sr=8-4

#8 cryptodan

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Posted 17 July 2011 - 03:19 PM

Does it take power from the USB Bus or does it use a wall outlet?

#9 blueade7

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Posted 17 July 2011 - 03:29 PM

Despite what I initially thought, it turns out there is NO external power supply for the USB hub.

#10 dpunisher

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Posted 17 July 2011 - 11:09 PM

Well, you are overloading your USB port. Each port is only good for 500 milliwatts. You can see power draws by going into device manager, select USB controllers, select whatever controller you want and click the "power" tab.

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