MacBook Pro and SanDisk Ultra II 960 GB does not

I bought two SSDs to 960GB SanDisk Ultra II for installation in a Late 2009 27 inch iMac and a MacBook Pro mid-2012. I could absolutely not anything other than a white screen on the 27-inch. I could get the external computer to boot via USB, but when it is plugged in SATA, it wouldn't start. OWC had a few caveats on the NVidia SATA bargaining chips down to a 1.5GBs of speed when you try to bind to a 6 G drive. I replaced it with an Electra OWC 3 G Reader (which worked perfectly). I returned the unopened SSD.

My next goal is to enter the SSD in the MBP. He chips Intel SATA and is not supposed to have bizarre problems. Once again, I have installed the operating system and started via the USB port, no problems. It does not start when installed internally via SATA. If I drill the old HD, it starts immediately. The SSD makes a folder with one? in the middle.

I have repartioned the reader for Mac. I also tried to clone with all disk utility, same result. I guess I could try SuperDuper or clone of carbon. I just installed another OWC drive in an other iMac and used disk cloning utility, and it worked perfectly.

I wish that I had bought the OWC drive now, but I'm stuck with this open disk and I would like to make it work. Has anyone else had problems? I think that the drive is bad, but when in a dock player, it works very well and will start the computer via USB.

When the SSDS was to the iMac 27 inches, she would not even allow the target disk mode, ot any source of start-up. I really thought that the video card was defective at first, but this player has been creating chaos.

All the words of wisdom are welcome.

To make a long story short, it's the SATA cable. The computer would boot from a classic HD so I thouhgt the SATA cable was OK.  Apparently, when these cables fail, they can operate at low speed, but there still may not work at all in trying to negotiate a connection with a 6 G SSD speeds. I also noticed that with the wrong cable, the link negotiated with the convnetional reader speed was 1.5 Gbit/s which was lower than expected. I replaced the cable of a reputable vendor and I got another job of SSD. I think the SanDisk that I ended up returning was really beautiful AND compatible.

I was clued in after a brand that I know with certainty was compatible would not work either. PowerBookMedic sells relaible cables. "cheap" replacements are not recommended.

Hope this helps someone else.

Tags: SanDisk SSD

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