So I've just got myself a Veriton X275. when I got it it had 5 USB ports on the front, one beside the card reader and 4 in two sets of two seperated by audio ports below the card reader. the card reader and USB are one card in a module and go to one set of connections and the four lower ones are two units of vertically stacked twin USB ports on a seperate card and the two outputs on that card in the module (one for each of the stacked USB modules)go to one connector point on the motherboard. When however I got it home I found that only the USB beside the card reader worked the other 4 were broken so I took it back for repair. When I got it back the two on the top row had been blanked with a plug which seems to be an Acer part and only the bottom two were available. I noticed however athough both worked individually if I tried to use both together they stopped working. Eg. I have my mouse plugged into one if I put a thumb drive into the other the thumb drive does not work and my mouse stops working (the same thing happens if i use either of the non functioning upper two USB ports), if I remove the mouse the thumbdrive loads or if I remove the thumb drive I get my mouse function back. If i plug anything into the top row of USB's I do get the ' USB DISCONNECTED SOUND' going off a couple of times. Thinking the shop had bodged the repair I got a new module to fit myself however when I fitted it the same thing happened. I don't understand the complete non function of the upper two USB ports as nothing is recognised if you plug it in to them( they seem to realise that something has been plugged in and have some sort of power coming from them but it seems like it's at very low amps) All the pictures i have seen of the X275 have all four of the USB's available on this lower part. I can only assume that the repair shop could not get them to work either so blanked them with a part from a similar model of Veriton that only had two lower front USB ports. When I got the X275 it was running Windows 10 but i have now downgraded to Windows 7 and installed all the available drivers from Acers support pages. There are no yellow triangles in device manager so all drivers seem to be fine. So does anyone have a clue to what is going on with these USB ports and what can i do to fix this, In all the time working with computers I have never come accross anythin as wierd as this.
