Resolved - USB Power

[abtruce]

I recently bought an external hard disk but when connected to the usb on my laptop it gives an error message tht the power is not sufficient. The harddisk came with a dual connector and so i have to use 2 USB ports to connect the harddisk. Is it possible to increase the power output on a USB port so tht i can connect the harddisk on one USB port?

 

[LED]

External Power supply...many drives have an input for it.

 

[abtruce]

u mean for the harddisk?? i don see an input..

ok.. does tht answer mean i cant control the power output on a USB port

 

[Zepper]

Integrated USB ports have limited power capacity anything more than a relatively recent notebook drive with the latest low-power technology would probably overtax it. Use a powered USB hub (has its own wall wart) to support Amp-sucking devices or use a PSU attached directly to the device.
. Another way to do it is to bring 5V from a drive connector directly to the USB jacks on the back or front of your computer - not hard to do but does require some knowledge of PCBs (printed circuitry) and soldering.

.bh.

 

[LED]

Usually it's on the hub...HD's may have it...USB Hi-Speed and HD's need the extrapower.

 

[abtruce]

thanks for the info guys.. jus tell me how to close this topic.. i remember clicking on "consider as answer" or something to close one topic earlier..

 

[Peter]

The power limit for an USB port, regardless of where it is, is 500mA. There are _no_ harddisks in 2.5" or 3.5" sizes that can live off that.

 

[Zepper]

Just edit the thread title. Add "RESOLVED - " to the front of the title - don't change the rest of the title as others can see what the suggestions are if this thread applies to them.