USB ports not working -sometimes-

Most of my computer is 4 years old.

Motherboard:Gigabyte GA-EP45-DS3L
GFX: GeForce 550 GTX TI
RAM: 4gb DDR2 Ram
CPU:Intel R Duo Core E8400 3.0ghz overclocked to 3.3ghz
PSU: ANTEC Earthwatts 500w

My problem being that -some- or all of my usb ports will get no power to them. Sometimes its my mouse or my network adapter, sometimes its everything. Is there a way that I can further diagnose my problem without changing power supplies (I'd prefer to replace a power supply rather than a motherboard)

Earlier today. my computer wouldn't even start, which is why I figure it's a PSU issue. Just started working again too.
3 answers Last reply
More about ports working sometimes
  1. I think its the PSU is giving the problem.
    But it wouldnt be bad give your computer a motherboard replacement.

    Good Luck!
  2. bump?
  3. Check your power profile for USB.
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