Slow Mac? Could be a HDD (Hard Disk Drive) or SSD (Solid-State-Drive) SATA Cable failing
Macbook Slow? Could be the HDD or the SATA Cable?
One problem we have noticed at our workshop is a failing hard drive cable in MacBook Pros.
That’s the little flat ribbon cable that connects the hard drive to the logic board.
It is a much harder problem to diagnose, because it generally acts just like a system with a failing hard drive
Although we have not seen traditional desktop style SATA cable go bad we see the problem quite often in Macbooks.
Macbooks with bad cables don’t crash, or freeze. They just hang for a while randomly, then come back. JUST like a hard drive with lots of bad blocks.
So if you have a Macbook with signs of a failing HDD, bring it to the IT Guys are take it to your nearest Apple professional and ask them to check the drive AND the cable.