why does it say under about my mac for the hard drive , link speed 3gb negotiated 1.5gb. its a early 2009 model surely if it supports sata 2 it should have come with a sata2 hard drive shouldnt it.
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wierd hard drive link speed
- Thread starter Drich290195
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Since even the fastest mobile HDDs cannot saturate S-ATA 1.5 Gbps (S-ATA I) speeds, it is kind of unnecessary to put an S-ATA 3.0 Gbps (S-ATA II) HDD in there. I also have a 2009 MBP and put a Seagate Momentus XT and an SSD into it, both get Negotiated Link Speeds of 3 Gbit/s, but only the SSD offers more than 120 MB/s, and S-ATA 1.5 Gbps (S-ATA I) can go up to 148 MB/s or so.
You can find out what your exact HDD is, using a freely available www search engine and the listed model in System Profiler, behind the "Model:" entry.
You can find out what your exact HDD is, using a freely available www search engine and the listed model in System Profiler, behind the "Model:" entry.
what i mean is im only getting sata 1 speeds out of my current drive yet the macbook supports sata 2
Yes, I understand, thus my recommendation to search for your HDD model and also the information, that while HDDs might be S-ATA 3.0 Gbps (S-ATA II) or S-ATA 6.0 Gbps (S-ATA III), they cannot even saturate the S-ATA 1.5 Gbps (S-ATA I) interface, thus making it almost pointless to have such slow HDDs (approx. 120 MB/s maximum for consumer HDDs, 2.5" S-ATA HDDs are even slower) on S-ATA 3.0 Gbps (S-ATA II) interface.
S-ATA 1.5 Gbps (S-ATA I) offers around 150 MB/s, thus it is faster than any HDD, thus S-ATA 3.0 Gbps (S-ATA II) is pointless.
It is late, maybe it is hard to understand, maybe I am too tired to properly explain.
Anyway,
I think you are fine. My 2008 Macbook Pro was the same. The computer hardware supported and showed the SATA II connection you are seeing, but the factory hard drive was only a SATA I drive.