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Precision M4800 USB problems
I have a Precision M4800 that has its USB ports stop working in two cases so far. First, if I use the card reader at all, it works to access files, but then when I try to eject the card, it shows neither an error nor the "safe to remove" message. the card stays in the list of drives even after it's unplugged. If another USB drive is plugged in after this, it isn't recognized. The second case is after using an external USB 3.0 drive for a while, it can stop working. The drive shows up in the list of drives, but all the directories appear empty. Unplugging doesn't remove the drive, and new drives aren't recognized. Once this happens, shutting down the machine crashes after a few minutes with DRIVER_POWER_STATE_FAILURE in either USBSTOR.sys or O2FJ2w7x64.sys. Could this be a hardware problem? It seems like the USB controller is locking up and the other drivers are getting blamed.
Pixiegirl19
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Posted December 31st, 2014 09:00
Have you tried turning
Allow computer to shut off hardware to save energy setting?
On windows 7, I don't see a catch-all that lets you turn off all power savings at once. There's settings in the advanced settings on the "Dell" power plan to turn off the disk and USB selective suspend and so on. I can try disabling some of those. Maybe turning the disks off is messing something up
Pixiegirl19
121 Posts
905
0
Posted December 31st, 2014 09:00
Sorry, I'm having issues with my phone. In Control Panel >Power Settings.
Turn off that setting. Set other portions to full power.
See if that helps. You may need to run a hardware Diag, after boot.
Dagra