+ 0 Votes Power surges mjd420nova November 10, 2013 at 10:07am PST This sounds like a surge has done some damage to the power supply. The reset cycle or power off sequence is not reaching all the circuits, making a power removal needed to reset the power supply and achieve full boot sequence. + 0 Votes Power surges dannjsz November 10, 2013 at 6:42pm PST But I can still turn on the PC to full boot up and use it no problem if I disconnect power supply completely and turn it on. It just has issues posting if I restart pc or just shut down from windows and turn it back on. + 0 Votes Judging from the information you posted wizard57m-cnet Moderator November 10, 2013 at 7:46am PST I would guess a faulty power supply, or possibly some peripheral such as the USB ports, where a pin is damaged. You could try by unhooking the USB port cables from the motherboard to see if the flashing goes away. However if it is a power supply going down, that may only be a short term bandaid. The power outage may have been enough to weaken the PSU (power supply unit) enough that full power is not being sent to the USB panels. Even when turned off, some current is passing through most electronics when plugged in to the wall sockets.