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Targus External USB ADV01US not recognized by any PC, XP, Vista, or Win 7. Multiple USB Cables used. No power supply required by the drive, powered by PC.

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Could be a disk problem of course. Make sure you try a desktop and not just laptops, they do not always provide enough power on the USB ports. Or try an external USB hub with a poer supply.
More ideas on external HDD troubleshooting.

Posted on Sep 12, 2010

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It doesn't require a power supply You may need to install a mass storage driver. What operating system are you using? Vista? XP? Win7? Win8? 32 bit? 64 bit? Was the drive used on a Mac? Are you on a PC right now with it?

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External hard drives connected to the USB port do not require any additional drivers for WIN XP, Vista or Win 7. If it is not being recognised at all then the USB converter inside the box is faulty. If the PC recognises the USB converter but not the hard drive then the hard drive may be faulty.

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Have new drive Hitachi SimpleDrive Mini 250GB USB 2.0 Portable External Hard Drive SDM/250RW (Red Wine) and works fine on Dell precision M4300 laptop Vista OS with either one or two usb plugs (so no extra...


Most USB hard drives require an external (or secondary) power cable to power the devices when connected to laptop or netbook computers. In some cases, even older desktop computer models will require a similar cable.
This is due to the specifications for the USB standard as it dictates the amount of voltage that a USB port can deliver. Some USB ports are considered "powered" and are sometimes identified by the USB logo and a small "+" sign to indicate the added voltage.
Note: Not all manufacturers use this logo, so if your computer doesn't have this variation of the logo, it doesn't necessarily mean the USB port is not powered.
This added voltage supplies additional current to power smaller devices, such as portable (or 2.5") USB hard drives. However, in the even that the USB port is not powered, then only the minimum amount of current is supplied. This should be enough to slightly power the drive, but not sustain it, thus causing the clicking noise and there isn't enough current running through to move the arm that reads the data on the hard drive.
Chances are that the USB ports on your Asus Eee are not powered and won't allow your hard drive to run until either a secondary cable is purchased or if you use a powered USB hub instead.
The secondary cable looks a lot like a Y-USB cable with one end that connects to your hard drive and the other end consisting of 2 USB plugs that both connect to existing USB ports on your netbook. Between the 2 USB ports, they can draw enough current to power the hard drive - the downside being that if you only have 1 USB port you cannot utilize the cable or if you have 2, they will both be occupying the ports while the hard drive is in use. These cables can cost about $1-7 depending on brand and can be found online in retailers such as eBay & CompUSA.
The USB powered Hub is a more expensive solution, ranging at about $10-25, but is the higher recommended of the 2 solutions since it will provide its own power supply to the tiny device, will use on 1 of your USB ports and since it's a hub, they usually have anywhere from 3-5 additional USB ports (all powered) for you to use, if needed. Some even include built-in memory card readers and they do not require any additional drivers or software to install and can work on any desktop/laptop/netbook.

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try to use another usb cable for your external dvd drive>>>> then if it's not working again try to check the bios setup if the optical drive is enable. if the setting is disable please change it to enable>>> if still not work back on where did you bought it>>> maybe it is defective...

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New Dell desktop can't recognize external hard drive


I devised these simple steps that tend to remedy quite a few issues with most USB portable / external hard drives and devices (though not always)

A few things to check but assumes USB and Windows for other interfaces / operating systems similar steps may be adapted to suit.

1. Ensure it is connected directly to the computer to a USB 2.0 port not a USB 1.0 port as this can have effects on performance and reliability

2. Use only the cables that came with it NOT one that fits that may have been lying around or is longer. Not all USB cables are equal even though they should be)

3. Do not connect through an external USB HUB unless that hub is USB 2.0 AND has its own power supply.

4. Use ONLY the power supply that came with it if it has an external power supply Don’t use any other unless you know it has both the same voltage and current rating e.g. 12V 500mA anything rated below that would not work properly.

5. Always use the same port for connecting your devices. Some devices do not like being switched about. If switched they may want to install software / drivers again. This can be especialy true if you move a HUB to another port

If you checked and fixed anything there and still have issues then check your hardware from CONTROL PANEL / SYSTEM / HARDWARE.
Any exclamation marks by hardware need fixing before you investigate any further

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Targus mouse not recognized


What is the OS of your computer? This Targus mouse would work with Win 98, Win 2000 and Win XP. Vista was not mentioned. And if you are running Windows Vista for you laptop, then that could be the reason why it was not recognized by the computer.

Is this the wireless optical mouse? If yes, you need to follow the steps below to isolate the problem:

1. Connect the USB receiver into different USB ports of the computer.
2. Replace the batteries with the fresh ones.
3. Try connecting the mouse into different computer to see if you've got a defective mouse.

If you've tried everything and got the same problem, you may need to refer to the manufacturer, because I'm not sure if this mouse is a Plug-n-Play device or if it needs a driver.

Have a great day!

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Hi,

The reason your full sized drive works fine and the passport doesn't is that the full sized drive has it's own power supply and only uses the USB for data transfer. The Passport drive requires much more power from the USB to spin up, so, if you want to run it through the USB hub at the very least you will need to replace the USB hub with a powered one.

As for a driver, you don't need one to use the passport on XP that's why you can't find one but the Passport does require a dedicated port(2 for Amperage on some systems) or will need to be plugged into a powered hub or it simply won't get enough juice to fire up. That is the reason it won't show up.

In short, buy a powered hub, or plug it in direct. Nothing else is likely to work.


Hope this helps figure it out

Chris

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Usually this is a problem with the usb port not being able to supply enough power to the drive. Often, units like this will come with two usb plugs on one cable to increase the current supplied to the drive. If the drive has an input for external power (some do, some don't), then using external power would help.

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