They do look the same & they are mounted on the motherboardbob vila said:do all of the plugs look the same?
are they all mounted on the motherboard?
if they are, then it is most likely a bad motherboard.
you could always get a USB hub and add more ports that way.
if two of them are mounted on the board, and two are on a remote mount, with a cable connecting them, then make sure all the cables are on correctly and tightly.
if this doesnt solve your problem, report back to us.
I just checked the device manager and there is no yellow! so where elsewhere should I look? I found out about this problem yesterday I plug my new printer in the USB nothing happened. The printer disc said it can't fine the printer. So I unplugged my cable modem from my USB plugged in my printer then it work. Plugged my cable modem in another USB and now my cable modem is not working...... I really need my USB'S to work GRRRRR:angry2:johnwill said:If one is working, chances are that the drivers are OK. If you look in Device Manager and there is no yellow ! on anything in the USB area, look elsewhere.
Did you have any issues with USB devices plugged into the other ports at one time? There are tiny surface mount fuses on the motherboard for most USB ports, they could have been blown by an incorrect connection.