Aspire u5-610

ddd

Power at house went out.  After pc won't turn on.  Verified power adapter is putting out 19.25 volts DC, power LED lights up blue, internal fan spins.  DVD tray works and opens up.  Not sure if HD is spinning.  Screen is total black.  Never see any BIOS screen.  Screen seems unpowered.

 

Visual inspection of motherboard, no obvious black or damaged silicon, no swollen or leaking caps.

 

How do I test further, to find out if monitor inverter is bad or motherboard needs replacement?

 

thanks, 

ddd

Ripping this thing apart now. 

 

I also learned that while powered on, the usb ports could not power a mouse.  The nic also did not work.

 

I was feeling slight heat from HD and above CPU.

ddd

pretty much have taken it apart, do not see where it failed.

 

Looking at powerbrick, the green LED is lit, but it is pretty dim.

 

Is this LED supposed to be bright or somewhat dim?

ddd

I'm guessing a motherboard failure because no beeps when started up.  No screen, completely black, no bios post.  While the motherboard powered the fan, the usb and nic ports did not light (power) anything up.  Although that could be because the bios never loaded because the motherboard is dead.