I've got a mid 2012 13" Macbook Pro. I've bought a Samsung 860 Evo 600gb.
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Initially I just installed the SSD in the HDD bay as you'd expect and attempted a clean install of High Sierra from USB. The install was excruciatingly slow taking 9 hours. I next attempted to connect the SSD by the USB adapter. The OS installed quickly. I put the SSD back into the internal bay and everything slowed right down; booting took an eternity then clicking anything when it'd booted caused it to lag. I did think that the SATA cable could have somehow damaged itself in the process but the original drive, back in the Macbook performs normally. Any solution for this problem?
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Initially I just installed the SSD in the HDD bay as you'd expect and attempted a clean install of High Sierra from USB.
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The install was excruciatingly slow taking 9 hours. I next attempted to connect the SSD by the USB adapter. The OS installed quickly. I put the SSD back into the internal bay and everything slowed right down; booting took an eternity then clicking anything when it'd booted caused it to lag.
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I did think that the SATA cable could have somehow damaged itself in the process but the original drive, back in the Macbook performs normally.
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I've got a mid 2012 13" Macbook Pro. I've bought a Samsung 860 Evo 600gb.
Initially I just installed the SSD in the HDD bay as you'd expect and attempted a clean install of High Sierra from USB. The install was excruciatingly slow taking 9 hours. I next attempted to connect the SSD by the USB adapter. The OS installed quickly. I put the SSD back into the internal bay and everything slowed right down; booting took an eternity then clicking anything when it'd booted caused it to lag. I did think that the SATA cable could have somehow damaged itself in the process but the original drive, back in the Macbook performs normally. Any solution for this problem?