USB Ports constant problems

I first thought it was my mouse that was malfunctioning, but after trying all kinds of things I have concluded that Win 7 is causing this: After a while, one by one, all of my USB ports stop working. First the ones in my monitor, I dosconnected them and then my 7 port usb hub stopped working. I disconnected that, and then the two in the front and finally the four in the back. When I disconnect and plug in again, or restart, it starts working fine for a while again. I installed Win 7 in another computer yesterday, and although it only happened once so far, it happened.
I'm really hoping someone has a solution or Microsoft fixes this bug. If it keeps happening, I'll have to go back to Vista since it really slows down my work flow, as you can imagine.
I want to tell you guys what kind of mobo I have to see if that's the problem, but where do I check that? I'm not such an expert.

labecs said:

I first thought it was my mouse that was malfunctioning, but after trying all kinds of things I have concluded that Win 7 is causing this: After a while, one by one, all of my USB ports stop working. First the ones in my monitor, I dosconnected them and then my 7 port usb hub stopped working. I disconnected that, and then the two in the front and finally the four in the back. When I disconnect and plug in again, or restart, it starts working fine for a while again. I installed Win 7 in another computer yesterday, and although it only happened once so far, it happened.
I'm really hoping someone has a solution or Microsoft fixes this bug. If it keeps happening, I'll have to go back to Vista since it really slows down my work flow, as you can imagine.
I want to tell you guys what kind of mobo I have to see if that's the problem, but where do I check that? I'm not such an expert.

Labecs

One of your problems is that you USB +5 volts is set for the number of usb ports built in. If your computer comes with 6 thats it. use 10 and voltage goes down. the only way to prevent this is to use powered hubs etc.

You have 15 devices on a system built for 6. That being said you can easily check with a 2o dollar voltmeter.

Im assuming your drivers are in and working. they must be to work.

If you did a clean install of win 7 Im pretty sure the problem isn't win 7.

Ken

Both the monitor and the external hub are powered separately, and in the other computer, it was the computer usb port itself that stopped working. And like I said, I disconnected all the external USBs and sonn after the computer USB ports stopped working. I have had this setup for a couple of years with no problem at all.

labecs said:

Both the monitor and the external hub are powered separately, and in the other computer, it was the computer usb port itself that stopped working. And like I said, I disconnected all the external USBs and sonn after the computer USB ports stopped working. I have had this setup for a couple of years with no problem at all.

you 64 bit?

Yes.

I doubt it's his power or devices. I recently installed 2 clean Win7 installations and I have had the EXACT same problems. Both on older laptops (IBM T43, DELL x300). On both systems the USB ports simply stop working (NEVER had problems before). Happens on External HD and multiple mice.

I just spent 3 hours trying to fix this same problem in my other computer. Obviously, Win 7 is having a problem, especially with USB powered Hubs... so I removed the hub, and the problem transferred to the USB ports. It took me 7 reboots to get them to work. They were working fine all morning, and suddenly... puff! It's frustrating cause it disables mice, keyboards, everything. I really hope Microsoft comes up with a fix soon, I'm going crazy.

I went and bought a new usb card to avoid using hubs. It's been a couple of hours.... we'll see. I'll keep you posted.

It's still happening, not as often, but after a day or so of use, I again got the "USB device malfunctioned" pop up. It's hard to tell which one it is, though. When I restart, it gets fixed. Also, even when the ports are working, they totally refuse to read any flash drives I plug in. I've tried with 3 different ones, and it just tells me the drive is empty.

I am having problems with my front panel USB ports. It started after I set my computer to hibernate after 15 minutes. The front ports now refuse to work at all when I plug in my 2 flash ram sticks. I have tried rebooting with them out and reconnecting them after boot up. I have tried leaving them in whilst booting up in the hopes that windows will see them during boot up. I have gone into the bios and checked that usb is enabled. I went into Hardware Manager and told it to search for new devices, all to no avail. I have of course turned off the posibility that my computer can go into Hybernate Mode now too. Whilst typing this a friend has suggested I power down the computer and leave it off for at least 5 minutes to enable all the power to drain out of everything (my power supply has a system on it that it keeps going after shutdown to make sure the cpu is cool enough for it to stop fully) then reboot. I shall try this too in a minute and get back to this forum.