MacBook Pro slow applications

Discussion in 'Mac Basics and Help' started by Milltea, May 29, 2012.

  1. Milltea macrumors newbie

    May 29, 2012
    I have a 15” Macbook Pro purchased November 2009. 2.53 GHz Core 2 Duo, 4 GB RAM, 250 GB/5400 RPM HD (model A1286). Current disk space available 210.9 GB.

    Two months ago the problem started with 2 kernel panics. Since then we have been troubleshooting a computer that is slow to start or won't boot up at all, with the spinning gear wheel often showing and lasting several minutes or having to do a force shutdown. If we could get it to boot up it would randomly be slow while trying to run or start an application showing the spinning beach ball.* Sometimes, on boot up there would just be a grey screen requiring a forced shutdown.

    Here’s a summary of what has been done:

    Backed up data, erased and reinstalled operating system software (Leopard 10.5) and applications CD and downloaded all updates. Reinstalled MS Office 2008 for Mac w/updates.

    Reinstalled backed up data.

    Ran Apple’s Hardware diagnostics with everything OK.

    Ran disk utility verify disk and everything OK on ST and HD.

    Checked SMART diagnostics, repaired disk (volume Macintosh HD appears to be OK noted), repaired disk permissions.

    Swapped RAM cards with new ones.

    Ran using only one RAM card separately in each of the two slots.

    Reset PRAM and NVRAM (cmd option P R) several times. This was sometimes successful when the Mac would not boot up.

    Reinstalled the operating system software and applications CD a second time without reloading the backed up data. Also, was careful to load all updates including the latest Java disable/Flashback.

    Still, it was slow and often hanging up completely.

    Thinking the software and RAM was OK we swapped hard drives with another Macbook Pro we have. The specs are the same but it’s a few months newer and is installed with Snow Leopard.

    The hard drive swap did not make a difference. The troublesome Mac still was slow with the Snow Leopard HD. After about 20 minutes the troublesome Mac had another Kernel Panic. The "good" mac worked fine with no noticeable difference with the HD swap. This would seem to indicate that the problem is somewhere else in the machine, not in the hard drive, RAM, and Operating system.

    Would there have been any problem swapping the HDs with the new one having Snow Leopard? Why was thwarted another kernel panic with the "good" HD?

    Would a bad logic board cause this?

    Does anyone have any other suggestions?

  2. chown33 macrumors 604

    Aug 9, 2009
    Sailing beyond the sunset
    It could.

    A. Take it to a professional technician for evaluation (assuming the posted list was done by yourself).

    B. Replace it.

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