Question Asus Q502LAB most of the time not recognizing the HDD

tibimakai

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Jul 5, 2010
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Recently I have installed a new Samsung 860 ssd and the laptop was working great a few times that I have used it.
Than suddenly started booting into BIOS and HDD shows 0 drives. If I save and exit, it boots into Windows.
But sometimes it works and boots normally into Windows.
I have read somewhere, that the sata daughter board has some bad connection. I went over and soldered the pins again, but that didn't change anything.
Any help would be greatly appreciated.