Chosen Solution
I have a MacBook Pro early 2011. I replaced the original HD with the Samsung EVO 860 SSD 500GB. I replaced the SATA cable (I read several posts about needing to do this) and I had no problems making the switch. However, I checked the system information and it says that while the SATA port is 6.0 Gb/s, the negotiated speed is 1.5Gb/s. Since the port and the SSD are rated for 6.0Gb/s, should I assume that the cable is faulty even though I replaced it? I purchased the newer 2012 cable but not from iFixit (maybe cable quality is the issue?). Also, I did not know about putting electrical tape on the inside of the case to protect the cable; I read about it in a post after I completed my installation. Is there another possibility for the negotiated speed being lower or do I need to purchase a new cable again and install with the electrical tape? Thanks!
Well, I’m happy to hear you’re getting the proper throughput from your SSD. What your wife is clueing us in here, the battery likely need replacement. Lets get a better view of things, install this gem of an app CoconutBattery take a snapshot of the main window and post it here for us to see Adding images to an existing question so we can see whats happening.
