Question Asus Q503U Caps lock only

Apr 9, 2020
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I have an Asus Q503U touch screen laptop. It will not power up and only has the Caps lock key lit up (HD and fan will not come on. I have removed the battary and reinstalled, reseated the HD and Ram. Power supply is supplying correct voltage. Is there anything besides the MB that can cause this.
 

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