Question about Dell Inspiron 5100 Laptop

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Usb port is there a way to hook up multiple usb hubs to my laptop without slowing it down?

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Re: usb port

Thanks for help brother does this online and he said you gave a completely great answer, i just didnt wanna bug him at work

Posted on Aug 02, 2007

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Re: usb port

USB spec 2.0 allows up to 256 connections at one time. The USB port operates at 400 Mbs. You can use self powered devices that require their own power supplies, this will help the throughput somewhat. It is more about what you are connceting to your laptop. The more devices that require extreme processor time the longer it will take to free the processor for another device. Another solution would be to use the IE1394 (Firewire) port if you have one. Firewire is designed to handle all of those digital processor hogging devices such as digital cameras, external hard drives and so forth. Hope this helps. Dan

Posted on Aug 01, 2007

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The USB plug will need to be removed from the computer, if luck is with you the computer will work, if no part is available, use a none powered USB hub on a spare port if available to run your applications.

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BAD News.
Usually the USB Port is a part of the Mother Board on a PC and the replacement of the Mother Board is the only solution.
You can find them on the internet at Ebay and other locations. BUT it is very involved to replace.

If you have one good USB Port, Get an adapter that will allow multiple inputs.


Question 2. I do not know. On most PC's two are horizintal and two are vertical.

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1 Answer

Hi also own a acer aspire 5516 and both usb slots are unoperable when i try to attach usb cables into the slots it won't go in. It's like the little piece that sticks out has fallen down. please...

Welcome to Fixya.

Seems like you're having some serious hardware issues with the USB ports. Before I go on, you have to know and understand that all USB ports in your laptop is connected to the mainboard (motherboard) and there are no ways developed (yet) to repair/replace a USB port without replacing the entire board itself. With this, I am highly recommending for you to purchase a USB Hub - where you only need 1 USB slot from your computer as this device carries multiple (up to 16!) USB ports with it. It can be purchased from any local computer/electronic boutiques near you and it looks something like this :


Common price ranges from $30 to $50 (depending on model and number of slots). If however, you choose to have the board replaced, then we are looking for around $300 - $400 for the labor and parts.

Here's acer's support site if you wish to know more details about replacement options :

Acer Support

Thanks for using Fixya.

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1 Answer

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Power surge on hub port a usb device has exceeded the power limits of its hub port there is nothing connected to my computer

I don't know how old your system might be or how many USB controllers it has on the motherboard, but understand this...

Theoretically, one USB port can support up to 999 "daisy chained" devices.

With that said...the way a USB port is implemented on a motherboard, manufacturers enable two or four ports to be working off of one USB interface. Those ports you see on the front of your computer are most likely connected to just one USB interface on the actual motherboard and that's why you always see computers with USB ports located together in pairs.

With that in mind, you're USB ports are connected to what is referred to as a "hub"(that motherboard interface), which only outputs so much power. If one device or many devices attached to this "hub" exceed the power output of this "hub" then it will either back down to USB 1.1 speeds or it won't function at all. That is why some USB accessories require their own wall adapter, because the USB can't supply all the necessary power for it.

So one of two things has happened, either your USB port is fried or you introduced a new USB item to the "hub" that surpasses the power requirements of what your USB hub can output once you plug in your mp3 player.

You can troubleshoot by unplugging all un-necessary USB equipment and try only that port again. My assumption is that the USB hub is fine but the actual usb port you use might be damaged.

Good luck.

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