Good day everybody, I used to be not too long ago gifted a MP5.1 mid 2010 and am a model new MAC person. Operating Mojave with a Radeon Sapphire RX580, 16 GB Ram. My Mac doesn’t acknowledge any of the 4 Sata backplane ports on the logic board. The one who gifted it to me confirmed they have been working. Mac OSX is working off an SSD which is linked to the spare optical drive Sata cable. There are two 500 GB HDDs internally in slots 1 and a couple of. I verified they have been working by connecting them externally by a Sata – USB adapter and the optical drive Sata connectors, one confirmed up as a Time Machine drive and the opposite as storage on the desktop and in Disk Utility. I additionally put in the SSD on slot 1 (internally) and the Mac wouldn’t boot. I linked it again to the spare optical drive Sata connector and it booted. I changed the CMOS battery and reset the NVRAM and upon boot up it acknowledged the Time Machine drive in slot 1 however not the storage drive in slot 2. Troubleshooting additional I made a decision to flip the Time Machine and storage drive slots. Upon boot up, neither was acknowledged and I am again to sq. one. So I do know the drives are serviceable and the drive on slot 1 did present up on the desktop and inside Disk Utility so I do know Sata port 1 does work, the query is what’s inflicting these points? Any assist can be significantly appreciated.
