When running from an external HD - does the internal HD do anything??
In the past 6 days my MBP-13" (mid-2010) has been freezing regularly. At first I thought it was a software issue - but after much talk on Apple Discussions, with a super technician today and other telcons etc. - it now seems to be a HARDWARE issue. Likely the internal HD - but perhaps also memory. Since I have several bootable backups, I'm trying a few more days to fully understand this issue before going ahead and having a new HD and/or memory installed.
OK so if I boot (like now) on an EXTERNAL FW800 HD (with aSuperDuper! clone copy of my internal HD) then intead of the freezes as early as startup and definitely within 1-5 minutes after startup that I get with an INTERNAL HD startup, with the EXTERNAL - I can run hours - actually did 24 hours once.
Summary: Internal HD startup-- FREEZES during or at Startup or in minutes after - might go 5-10 minutes, not more.
External with the exact same cloned software / system etc: RUNS up to 24 hours (maybe longer, just haven't tested it).
BUT BUT-- if I activate a screen-saver and then if the MBP goes to sleep -- it freezes... even with the external HD as the boot / startup drive.
SO I'm wondering if this is because the internal HD is being activated - and since it likely has some bad sectors or ??? - when it comes to life, it causes the freeze. IS THAT POSSIBLE?
Thanks for any comments here-- the more info I can give the Apple guys, the better fix that can be done.
Best regards,
Steve Schulte
Thursday 14 October 2010
OK this is great feedback - and let me comment before taking the next steps:
1. You wrote:
[email protected] wrote:
If you've got a spare drive, reformat it and install Snow Leopard onto that drive. Use that for a while without any of the clones you have or the internal plugged in.
Please confirm that you mean to open-up the MBP and physically remove the Internal Hard Drive - I have the instructions and tools, just want to verify that's what you mean.
2. You wrote:
[email protected] wrote:
Is it hard locking to the point where you can't even move the mouse or is it just giving you the beach ball? The beach ball often indicates disk access while a hard lock is typically something bigger.
I have NEVER had a spinning beach ball in the past 9 days. Always just a freeze - can be at anytime, any program or the Finder-- just WHAM and a hard power-button start is needed.
Yet sometimes like now (running off an external HD) it goes an hour or more fine!!
Here's what I have done: Run a new, clean system on the INTERNAL HD after erasing it. This worked for a long while (basically in sleep mode however) then began freezing regulary.
OK so you are recommending erase a FW HD and then load 10.6.3 from my installation disk, then run that-- but first physically remove the 500gb internal HD-- CORRECT?
I'm now guessing this is a logic board problem - especially with the error code on the Hardware Test DVD reading: 4SNS/1/40000001: TN1D- -1.000
All comments are really appreciated!
Steve
17 Oct 2010
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