Temporary freezes after fitting SSD and new ram

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Level 1

102 points

Temporary freezes after fitting SSD and new ram

I recently replaced the internal HD in my MacBook Pro with a 250GB SSD from OWC and doubled the ram to 4GB at the same time. I'm very pleased with the improvement in performance, except that I now get temporary freezes for as long as 20-30 secs. I can move the cursor around and click but nothing happens. When The computer 'comes back' it responds to what I did while it was 'away'. This happens several times a day.

Any ideas what might be going on here?

Thanks in advance,

Steve = : ^ )

MacBook Pro, Mac OS X (10.6.8), Windows XP in Parallels 6

Posted on Feb 16, 2012 5:38 PM

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Answer 1

Erroll Author

Level 1

102 points

Feb 17, 2012 5:25 PM in response to Erroll

I should have added that I get the spinning beachball while the machine is 'away'. I just had one of these freezes and it generated this message in system.log:

Feb 18 12:19:46 MacBook-Pro WebProcess[91328]: INSERT-HANG-DETECTED: Tx time:28.321623, # of Inserts: 2, # of bytes written: 70, Did shrink: NO

Does this mean anything to anyone here?

Thanks in advance,

Steve = : ^ )

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Answer 2

Erroll Author

Level 1

102 points

Feb 20, 2012 3:13 PM in response to Erroll

Here's an ither log entry for a freeze.

Feb 21 10:08:45 MacBook-Pro WebProcess[94848]: INSERT-HANG-DETECTED: Tx time:40.673257, # of Inserts: 5, # of bytes written: 58817, Did shrink: YES

Thanks in advance,

Steve = : ^ )

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Answer 3

Shootist007

Level 6

16,703 points

Feb 20, 2012 3:23 PM in response to Erroll

Have you enabled TRIM support?

I know OWC says you don't need it but I do NOT believe them.

Enable TRIM and see if it gets better.

I used this script program to enable it.

http://www.mac-tv.de/Forum/attachment.php?attachmentid=5470&d=1312024613

You can always run that srcipt again to turn it off.

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Answer 4

Erroll Author

Level 1

102 points

Feb 20, 2012 3:33 PM in response to Shootist007

I'd never heard of TRIM. I was about to enable it from the linked app but it's for Lion and I'm running Snow Leopard. I Googled for the SL version and found this, which seems to say that TRIM is now enalbed by default under OS 10.6.8.

Steve = : ^ )

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Answer 5

Shootist007

Level 6

16,703 points

Feb 20, 2012 3:35 PM in response to Erroll

I ran it on Snow leopard and it works the same, IIRC.

If it doesn't then do a googlwe search for TRIM support on Snow Leopard.

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Answer 6

Erroll Author

Level 1

102 points

Feb 20, 2012 4:03 PM in response to Shootist007

Thanks. I did do a Google search for TRIM support on SL and I found this article, which told me that, as of the latest security update (which I installed) and a restart (I have), TRIM support is enabled by default in OS 10.6.8.

Do you still think I should try to run a 3rd-party TRIM-enabler?

Thanks again,

Steve = : ^ )

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Answer 7

Erroll Author

Level 1

102 points

Feb 20, 2012 4:08 PM in response to Erroll

I read another article which makes it clear this OS-level trim support is only for Apple-fitted SSDs. I look at mine in System Profiler and TRIM is not enabled. I run the enabler.

Steve = : ^ )

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Answer 8

Shootist007

Level 6

16,703 points

Feb 20, 2012 4:21 PM in response to Erroll

Sure give it a try. It can't hurt.

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Answer 9

Erroll Author

Level 1

102 points

Feb 20, 2012 4:37 PM in response to Shootist007

I ran the enabler but System Profiler still shows "TRIM Support: No" for my drive.

Ant further suggestions?

Steve = : ^ )

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Answer 10

Erroll Author

Level 1

102 points

Feb 20, 2012 5:31 PM in response to Erroll

Okay, I downloaded an app called Trim Enabler and now I see "TRIM Support: Yes".

I'll see if I still get freezes and report back.

Thanks,

Steve = : ^ )

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Answer 11

Erroll Author

Level 1

102 points

Feb 22, 2012 11:40 AM in response to Erroll

Okay, I've had TRIM enabled for a couple of days and just experienced another for the 'freezes'. Here's the Console Log:

Feb 23 06:36:43 MacBook-Pro WebProcess[359]: INSERT-HANG-DETECTED: Tx time:38.688432, # of Inserts: 49, # of bytes written: 721950, Did shrink: NO

Looks like the problem isn't that TRIM wasn't enabled. All the the freezes are of the form:

MacBook-Pro WebProcess[359]: INSERT-HANG-DETECTED:

Does this mean anything to anyone?

Thanks in advance,

Steve = : ^ )

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Answer 12

Shootist007

Level 6

16,703 points

Feb 22, 2012 1:38 PM in response to Erroll

A Google search turns up a lot of thread all about Snow Leopard and Safari.

Here's the search.

http://www.google.com/search?sourceid=chrome&ie=UTF-8&q=INSERT-HANG-DETECTED

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Answer 13

Erroll Author

Level 1

102 points

Feb 22, 2012 5:02 PM in response to Shootist007

Thanks. Yes, Googling the eroor message makes sense. I haven't found anyone saying they have a fix.

It's interesting that this only started for me after replacing the interndal drive with a SSD.

Thanks again,

Steve = : ^ )

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Answer 14

Shootist007

Level 6

16,703 points

Feb 22, 2012 5:18 PM in response to Erroll

I have a SSD installed and I don't get any of that. I also don't use Safari, I use Chrome.

The SSD I installed is a Kingston SSDNow V200 128GB. It has been running fine for 2 months.

One big reason I use Chrome is because it allows me to sync all browser data across many different computers.

If I change, add or delete a bookmark it gets updated on all my computers. If I save or delete a login username & password for anything it get updated on all computers.

But I digress.

As to your problem I'd call OWC and tell them your problem. And you could try putting the original drive back in and see if you get any freezes. If you do them it may be the RAM. If you don't then it is the SSD.

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Answer 15

Erroll Author

Level 1

102 points

Feb 22, 2012 7:59 PM in response to Shootist007

I'm in Australia and have a hearing disbility so I won't be calling OWC. Replacing the internal drive in a 2007 MacBook Pro is a big job and not for the faint of heart and I paid someone to fit the SSD. However, I put the original disk in a USB enclosure, so I could clone the SSD to it and then run off it for a few days and see if the problem persists. It'll be a day or too before I can do this.

Thanks for your help.

Steve = : ^ )

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