There are 4 USB ports on the back of a computer I use at my boyfriends but the bottom 2 have stopped working. Is it as simple as just replacing a circuit board or will he have to buy a new computer? It is the Dell �399 computer that was on sale just over a year ago. Thanks
Ethel - thanks for your answer. Will tell boyfriend to buy an external hub. I gather that the extenral hub is plugged into one of the existing working USB ports and then everything can work from there? What is the card you refer to?
This is like the problem I have with my front two USBs,but why have they stopped working ? and is there a danger that the remaining working USB at the back gets overloaded ?
Ok this is weird. I havn't done anything at all to the computer but last night the USB ports started working again! Wish I had waited before buying the 4 way hub!
Check the connectors feeding your USB ports!
USB headers tend to come in pairs ... so one motherboard connector feeds two USB sockets
(which is what you describe).
With the additional info that they have just spung back to life I think that it is a fair bet that you have a bad connection.
PCs are vibrating all the time they are on ... so a loose connection is always the second thing to check
(after drivers - because they are easiest to access!)
replacement new should always be a last resort.
NEVER blow on an electrical connector to "clean" it spit is a good insulator for low current devices like memory etc.
Your USB hub could still be handy ... sited at the front ... it should be easier to access than the two on the front of your dell