There are many symptoms your computer may exhibit if the capacitors or other onboard components are beginning to fail. These are some symptoms:

 Your system fails to boot.
 Your system becomes unstable or locks up.
 You have to boot and then reboot to get the system to P.O.S.T.
 Your fans and power lights come on but the system still does not
     boot.
 Your system reboots or shuts off while working on it.

These are just some examples, as with most electronic components motherboards can exhibit a multitude of different symptoms.

The motherboard is tested and burned in overnight to ensure stability & reliability. We also clean your motherboard after repairing it so no foreign materials are left that could short or damage the motherboard.