Replaced motherboard and my computer booted perfectly fine, then I turned it off and now it won't boot

kcuffman11

Reputable
Dec 12, 2015
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0
4,510
I have a toshiba satellite L755 laptop. My laptop wouldn't start and I took it to Microcenter to have it diagnosed. They told me my motherboard was fried. I had them copy the stuff on my hard drive on to an external drive. I replaced the motherboard with the correct replacement model number. My computer booted perfect after I replaced the motherboard. I was on it for a good two hours before I turned it off for the night. When I went to turn it back on about two days later, it wouldn't boot. The light is on saying that it's receiving power and when I hit the power button to turn on, that light comes on as well. Right after I hit the power button, the green lights on the keyboard for the caps lock and number lock blink once and then turn off. I hear nothing when I turn it on; no fan starting/ spinning, nothing. And my screen is black, no windows message or anything. Any help on this would be so much appreciated. Especially since it turned on and worked once before not working at all.
 
Solution
Lesson to be learned: never buy Toshiba. ;)
Just kidding.

I'm guessing a bad power brick or the power port? Seems like a lack of wattage more than the motherboard this time. But of course, the motherboard is highly possible.