Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: USb devices stop working

30 Jun 2011   #1
mckillwashere

Windows 7 x86/x64, Server 2008r2, Web Server 2008
 
 
USb devices stop working

Hey guys/girls

Im having a slight issue with one of my machines I cant track down the cause.

My USB mouse and keyboard will randomly stop working. After a reboot they work fine for a few minutes then they will stop functioning. We have tried drivers and chipset drivers. any other Ideas?


My System SpecsSystem Spec
.
01 Jul 2011   #2
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

I would first check in the BIOS to be sure the USB settings have not changed. You could also try resetting BIOS defaults to see if it makes any difference.

While in the BIOS check the voltage readings for any anomalies.

What I'd be concerned about is the southbridge chip, which controls the USB ports. If the chip were failing you would get those sorts of problems. Some motherboards around the time of the intel P4 had grounding problems on the southbridge bus. If you are of that vintage check for dust, hair, or loose connections.

And a failing power supply can be a cause too. The motherboard logic is to cut off the circuit if there is an over-voltage draw, and if the peripherals are drawing more than the circuit can provide (while functioning normally) the logic could be cutting out.

EDIT: Also, if either USB device is shorting or over-drawing current, that will cause the circuit to cut out too.
My System SpecsSystem Spec
01 Jul 2011   #3
gregrocker

 

Is it only with the keyboard and mouse? How about other USB devices?

Do they cut out together or separately?

Have you tried another keyboard or mouse?
My System SpecsSystem Spec
.

07 Jul 2011   #4
mckillwashere

Windows 7 x86/x64, Server 2008r2, Web Server 2008
 
 

Sorry about the late reply.
@Tveblen - In the end we determined it hardware failure. I wish I could have checked the BIOS, its kind of hard when the computer is close to eight hours away via Plane :P.
@GregRocker - Yep we had tried a known working mouse and keyboard.

In the end I did something stupid and changed the permissions on the system32/drivers to our administrator account and it made one of the two unknown devices work, however it wouldnt install any of the attached devices.

In the end I determined it to either be Hardware failure or Os corruption since it wouldnt even install Windows updates without failure.
Given the pc has just been giving us issues and is relativity new were replacing it.

Thanks for all your help mates
My System SpecsSystem Spec
07 Jul 2011   #5
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Good to hear that you've got a solution.
Long distance diagnostics can drive you crazy!
My System SpecsSystem Spec
Reply

 USb devices stop working




Thread Tools




Similar help and support threads
Thread Forum
USB ports/devices stop Working when Windows 7 Boots
I have a HP Pavilion P6204Y Special Edition running Windows 7 Home Premium x64 that has been having issues with the USB ports for the last few weeks. I am using a USB keyboard and mouse, which both power up/light up as soon as the computer is turned on. They work fine when I enter the BIOS, but...
Hardware & Devices
USB devices stop responding while still powered.
Hello! I am using Windows 7 64bit and M/B Gigabyte p67A D3-B3 (1155/ P67/ DD3). The problem happens randomly (I haven't managed to nail down a pattern when it happens or replicate it). Let's say it happens when running full-screen applications (games n stuff) Without warning everything that's...
Hardware & Devices
USB ports stop working w/ too many devices
My setup: Acer Aspire with Windows 7 Ultimate w/ the latest Windows updates 4gb of Ram Intel Core 2 Duo Processor Don't think that much more is relevant. I use a usb wireless device on my computer and if only it and my keyboard are plugged into the usb ports it seems to work fine.
Hardware & Devices
Partition Resize Causes Devices to Stop Working
Hi, I've got a fairly serious problem with my devices, though I think it is because of GParted. I am dual-booting off of separate hard drives, Ubuntu and Windows 7. The Windows 7 drive has a couple of extra linux partitions on it that I use for storage and a fallback OS. Yesterday I used ...
Hardware & Devices
Recording Devices Stop Working After One Use
Windows 7 Ultimate x64, presumably patched to date I'm running a Dell Studio XPS 1640, and find that any plug-in microphones stop working after one use. I originally found this on the Mic/Line In jack, and worked with Dell on the issue. They replaced the motherboard once, and the sound...
Sound & Audio
USB Devices Stop Working after a few minutes
Hey there, I've been researching this issue for over a day and have yet to find any solution. I have windows 7 installed now, upgraded from Vista and everything worked okay originally. Now, when I plug in any of my USB sticks, they work initially but end up hanging after a few minutes or...
Hardware & Devices


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 09:04.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App