Windows 7: USB devices not connected more then 3.

Hi to all seven forums..!
when I connected more then 3 usb device in my pc, the 4th usb device not working,,
my pc all usb port is worked and my usb device is also, but not working together four usb devices.. only 3 usb devices work at a time..
what is the solution for this...?

Regards:.

Depending to what you plug into the USB hubs, you may be out of power to allocate to the 4th hub

yup wally, u r right. I realize that this could be the power supply low voltage issue,
so how do I fix it..?
replacing my pc power with some high voltage power supply, or something else.?

Replacing your PSU would work or you could get an external USB hub which had its own power supply.
heres the link to one

Rocketfish™ - 4-Port USB 2.0 Hub - RFNBSKHB.


This will be cheaper but if you plan to upgrade other aspects ie. graphics card then you should to with the PSU upgrade.

very help full dear,,,, I must get one of it. thanks alot.
and currently I don't need to install a graphic card,,

make sure that it comes with a separate power adapter i dont know if the one I liked to did

which one I bought, is not included power adapter, but its work fine..

Glad to hear it