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Hi, I replaced my Optical Internal CD player, with a SATA adaptor for SSD. I’m using this SSD as a second internal memory, the OS is still on the primary slot. The new SSD ( ADATA SU 800 - 256 GB) is working properly but when I turn off the Mac and I turn it on again, the SSD is not recognized. If I reset the PRAM when turning on the Mac, the Mac Recognizes the SSD. What can I do, to avoid PRAM reset every time I turn the Mac on? Because for now, this is the only solution. Thank you
You’re hitting a common issue! You are using a fixed speed SATA III (6.0 Gb/s) SSD within a SATA II (3.0 Gb/s) system. While it may appear to work the system looses connection with the SSD as its too fast for it. You’ll need to get another SSD which is either a fixed speed SATA II (3.0 Gb/s) or is auto sense so it is able to match the speed of the system. As an example the Samsung 860 EVO SSD. Note the spec sheet lists out support for all three SATA specs!
