Hi, I have a Dell Optiplex 745 that has mouse issues. The Optical USB mouse keeps on disconnecting ie. there red LED at the bottom goes off and there is no response. It will work only after unplugging the mouse from the USB port and reconnecting it back. We have already done a few things like change the mouse and motherboard but the problem stilll returns. Anybody know what else can be done?
Does it fail if you disconnect all other USB devices except the mouse and keyboard? Have you tried a different USB port?
You didn't say how long it takes before the mouse fails, eg, immediately, after a few minutes..? If it works for a while and then fails, open Device Manager and expand list under USB. Double-click each USB root hub, one at a time. Click Power Mangement tab and uncheck the box "Allow PC to turn off this device...". Click OK back to previous screen and repeat the process for all USB root hubs. Then reboot.
<>And if all else fails, you could try the generic USB fix: Disconnect all USB devices except mouse and keyboard. Open Device Manager and expand list under USB. Double-click each root hub to see which one is connected to the mouse and make note of that one. Now right-click each USB entry in the list in Device Manager and select Uninstall, doing the root hub attached to the mouse last. Reboot and XP will reinstall the USB ports.
If this answers your question, please click Yes
Forum Member since 2004
I am NOT a Dell employee
I have the same problem. Tried your ideas RoHe, unfortunately didn't change anything.
Happens randomly from immediately after restart to a few minutes later. Sometimes the mouse will work fine for 30 minutes, then goes dead.
The only thing that helps is to unplug and plug back in.
Also have latest BIOS, chipset, XP SP3.
Turn off ACPI, Turn off Allow Windows to shut down this device to save power,
Turn OFF Allow windows to sleep the USB Root Hubs to save power.
Report Unresolved Customer Service Issues here I do not work for Dell. I too am a user. The forum is primarily user to user, with Dell employees moderating.
Thanks for the tips, Speed. I awarded stars for what sounded like excellent ideas, but unfortunately I could not complete them: There is no setting for ACPI in the BIOS, and the "shut off/sleep to save power" settings are grayed out in the applicable windows in Device Manager.
This model definitely has ACPI compatable bios. You may need chipset drivers and or an updated bios.
You did not say what version of windows. All versions XP,Vista, 7, 8 have a setting for the usb root hubs that say
DO NOT ALLOW Windows to turn this device off to save power via Checkbox.
Thanks again for the help - I found the USB controllers in the device manager and followed the instructions, but to no avail
Also, I had previously tried the other suggestion with the generic USB fix, the system re-installed all the drivers, but that didn't help either.
The only thing I haven't been able to try is turning off ACPI because there is no listing for it in the BIOS to change it, nor do I even see ACPI mentioned in the BIOS.
Running XP SP3, and most recent BIOS (2.6.3) & chipset 126.96.36.19943)
I know it has to be software because when I boot into the W7 partition, the mouse doesn't freeze.
CHIPSET 6.1x is too low should be 6.3.1007 or higher.
Okay, I finally found 6.3.x on the Intel site - but it didn't fix the mouse problem, but there is a new behavior.
For the first time instead of just the mouse going dead (but when you unplug and re-plug you always hear the system hardware "ding" sound), I have seen twice an alert that "Windows" doesn't recognize the USB device..." alert, which I've never seen before.
It doesn't change the behavior - I still have to unplug and plug again, but the alert is new. Seen it twice in the last 12 hrs. or so and maybe 25-30 or so mouse freezes.
There is no pattern that I can see. Sometimes it happens immediately upon restart as soon as the desktop loads and the mouse is dead, sometimes it works okay for an hour before it starts. Sometimes there is a rapid fire freezing where it works for one short cursor movement, sometimes it goes for 20 minutes w/o a freeze. Sometimes during navigation with Win Explorer, sometimes using web browsers, sometimes during full-screen games. Always count on a freeze and always unplug and plug fixes it.
Also, didn't mention before, but I have tried at least 3 different mice and it is all the same. Also, the current mouse is a logitech with its own drivers and control panel, but that doesn't make a difference. It happened before the logitech drivers and after, exactly the same.
Boot a Live Linux DVD and see how long the mouse lasts.