Paul
Tue Apr 29 11:17:25 PDT 2008
paristotle wrote:
> Your HD draws more power than the laptop can supply from that one port. There
> are a couple of solutions. 1) use a USB hub with a power supply. This will
> give you the extra power needed. 2) some hd enclosures also have a DC power
> in jack and there are cables that go from the dc connector on your enclosure
> to a USB connector. It takes up 2 usb ports to run your device, but it works,
>
This is an example of a cable, used to get enough power to run an
external 2.5" drive.
http://secure.serverlab.net/shop/graphics/00000001/yCable.jpg
WesternDigital sells the cable as well.
http://www.wdc.com/en/products/accessories.asp?ProdID=170
"This dual-connector cable is designed specifically for the WD Passport
portable USB drive. Normally, the USB port on the PC provides enough power
to operate the drive. However, there are some models of computers that do
not supply enough power for the drive to operate. In those rare cases,
this cable can be used to power the drive using power from two USB ports
on the system.
* Fully certified high-speed USB 2.0 cable
* Transfer rates up to 480 MB/s
* Double type-A to single mini-B connector"
(picture)
http://www.wdc.com/global/images/products/accessories/WDCA029RNN.jpg
Paul
> "Rafael" wrote:
>
>> Hi,
>>
>> Please could someone help?
>>
>> I have an Acer TravelMate 800 laptop which has 4 USB ports.
>>
>> I have a Western Digital Passport external hard disk (320GB) and
>> whenever I try to connect this device I see the following error:
>>
>> "Power Surge on Hub Port. The USB Mass Storage device has exceeded the
>> power limits of its hub port."
>>
>> The device never appears in 'My Computer'.
>>
>> I am prompted to disconnect the device and then click on 'Reset'.
>>
>> I can connect a USB mouse in to any one of the ports and it works
>> fine. I can also connect a Kingston Data Traveller pen drive (512MB)
>> in to any one of the drives and that also works fine. It is only this
>> Western Digital Passport external hard disk which causes this error.
>>
>> Can anyone help? Can it be resolved?
>>
>> Any ideas most gratefully accepted.
>>