No power to PC, power light on Mobo flashing (Gigabyte)

lettuce

lettuce

lettuce

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15 Oct 2007
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Bedfordshire, UK.
So I had my PC on all day (as usual) and in the evening I went to the PC and notice if was off I just thought it went to sleep, moved the mouse nothing, pressed the power button nothing.

Upon opening the case I noticed the power button on the gigabyte z87x-ud5h mobo was flashing, press this power button also did nothing.

I removed all components (gpu, ram, capture card, sound card, usb3 PCI board) bar the CPU and plugged the system back in and the flight still flashes.

Any suggestions???....I did notice through the day that the pc kept popping up a notification that one of the generic USB drivers was not working or unrecognised dunno if that's related??
 
Just tested my PSU with the paper clip trick and my multimeter is saying all the rails are correct and working so I think I can remove the PSU from the issue.

As I've removed all components bar the CPU and I'm still getting the flashing power button light on the mobo I'm guessing were looking at the cpu as the culprit???
 
lettuce said:
Just tested my PSU with the paper clip trick and my multimeter is saying all the rails are correct and working so I think I can remove the PSU from the issue.

As I've removed all components bar the CPU and I'm still getting the flashing power button light on the mobo I'm guessing were looking at the cpu as the culprit???
Click to expand...
Could also be the motherboard but try clearing the cmos on the motherboard by using the jumper pins while taking the battery out and power disconnected.
 
Ok found the jumper pins shorted them left the coms battery out for 15 minute's and still nothing.

I even removed the CPU (so every component removed from the mobo) and the power button is still flashing.....not sure if that's normal behaviour if you have no components plugged in??.

So I'm guessing the mobo is dead?
 
lettuce said:
Ok found the jumper pins shorted them left the coms battery out for 15 minute's and still nothing.

I even removed the CPU (so every component removed from the mobo) and the power button is still flashing.....not sure if that's normal behaviour if you have no components plugged in??.

So I'm guessing the mobo is dead?
Click to expand...
Does look that way you've already ruled out the psu.
 
I'm guessing the only way to be sure is if I can find a cheap 2nd hand 1150 socket mobo, I guess there not too many of them about now a days
 
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