Recently I had some problems with USB devices (never had that before). My mouse, my keyboard and my wireless adapter sometimes just wouldn’t work anymore for some reason. Yesterday I got a message from Windows, that my USB ports wouldn’t deliver enough power for my devices to run.
Today my PC just didn’t start anymore until I unplugged most of my devices. Now with only mouse, keyboard and wireless it works fine. As soon as I plug in more devices the PC won’t start.
My System: Windows 8 64 Bit, Asus P9X79 Pro, I7 3930k, GTX 480, 16 GB DDR3 Ram
I have a pretty old power supply (about 6 years old). It’s 700 watts and I never had problems, so I never changed it. Could it be the power supply or is it something with the mainboard?
What I already did:
- I reinstalled the mainboard’s drivers
- I changed USB settings in the BIOS so it wouldn’t save energy
- I updated to the latest version of the BIOS
Anyone any idea what it could be or how to test the power supply (I have no tools).
Thank you very much.