|It happens. Sometimes you get stuff that's "bad out of the box" I had two identical motherboards in a row like that once some years ago.|
The unit itself should be covered by warranty. If not by the seller, then by the manufacturer. Most hardware has a minimum 1 year warranty. If you have the bill of sale, take it back where you bought it. I would try that even if you don't have the bill of sale. Most stores keep the sales info on computers these days and with luck can find it for you.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.