MBP choppy/laggy with new 750 EVO SSD

Discussion in 'Mac Basics and Help' started by aintnobody, Sep 23, 2016.

  1. aintnobody macrumors newbie


    Sep 23, 2016
    I have a MacBook Pro with 8 GB and an i5. Yesterday I installed a new harddrive, the Samsung 750 EVO with 250 GB. I restored my old system via TimeMachine. Unfortunately I noticed very laggy behaviour. With every operation came the beachball for a second. Typing, opening programs, everything. I thought maybe it’s the old system, some weird connections that aren’t there anymore. So I wiped the SSD and did a clean install (Sierra). My system is blank and it’s still choppy as hell. Every action lags for a second. Here and there random beachballs. What can it be?

    There is no dot in the spotlight glass, so no indexing I guess. My SSD Firmware is MAT01B6Q.

    Can anybody help me please?
  2. Fishrrman macrumors G5


    Feb 20, 2009
    Failing drive ribbon cable inside?

    This is a common problem that sometimes appears when changing from an HDD to an SSD.

    The ribbon cable is low-cost and not difficult to change out.

    See ifixit.com for the instruction guide and the correct part number.
    You can get the cable from ifixit.com, or from ebay, or online...

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