OWC Blog - blog.macsales.com

Tag-Archive for » 6GB «

Putting a rumor to rest – OWC supports 6GB MAX in Late 2008 MacBook Pro

Monday, December 14th, 2009 | Author: OWC Michael

Apple released MacBook Pro EFI Firmware Update 1.8 on December 8th, 2009, sparking a new interest in the Late 2008 MacBook Pro models and their maximum memory capacity.

Apple supports up to 4GB of memory in these machines, but OWC has done the testing with our memory modules and has been able to support 6GB of memory since their release. However, there was something interesting we found with our testing when trying to qualify the laptops to accept 8GB of memory. Simply put, while System Profiler recognized that there was indeed 8GB of memory installed, once more than 6GB of memory was actually put to use, the performance of the overall machine diminished.

Of course, when we heard the rumors circulating again that the Firmware Update may have silently addressed this issue as well, we got excited and performed the qualification testing again after installing the update. Unfortunately we found the same scenario on all the machines. The machines were faster the more memory we installed until more than 6GB was present. Once the machine tried to address the final 2GB of memory the performance started to suffer yet again.

It would have been nice to officially support twice the memory that Apple intended, but alas, we’ll have to settle for a 50% increase. Which all in all – isn’t bad.

The machines that were rumored to go to 8GB, are supported to only 4GB by Apple, and have been tested and confirmed by us to 6GB are:

  • MacBook Pro 15″ 2.4GHz (All)
  • MacBook Pro 15″ 2.53GHz model w/ExpressCard Slot (Late 2008)
  • MacBook Pro 15″ 2.8GHz model w/ExpressCard Slot (Late 2008)
  • MacBook 13.3″ 2.0GHz (All)
  • MacBook 13.3″ 2.4GHz (All)
  • White MacBook 13.3″ Intel Core 2 Duo 2.13GHz
  • The Story Continues… “Secret” Firmware lets Late ’08 MacBooks use 8GB.

    Confirmed! OWC brand 8GB RAM works in new MacBook

    Friday, October 23rd, 2009 | Author: OWC Michael

    8gbmacbookWith Apple’s new machine releases, we’re hard at work in the OWC Test Labs seeing just how fast we can make the machines go.

    Our first machine that we’re looking at is the October 2009 2.26GHz MacBook.  This machine is pretty tight on the inside – meaning there isn’t much extra unnecessary space inside.  Like the iPod and iPhone, conservation of space seems to be a high-priority of Apple’s design teams.  So even though the machine is lighter and sleeker, it does pose some drawbacks in upgrading.  This Macbook has no problem running either a 5400rpm, 7200rpm or SSD drive for the fastest speeds, however; the physical height of the drive is limited to the 9.5mm form factor.  The 12.5mm drives are too tall to fit in the space provided.

    I should reiterate that point.  The drive doesn’t officially fit.  Sure, we were able to cram it in, and screw the cover closed (with a little bowing of the bottom) but we don’t suggest or will support actually running the drive this way.  Too much physical pressure on a drive can certainly contribute to early drive failure – it’s just not worth risking your data or the expense of a warranty compromised drive.

    We’re pleased to announce our findings that our OWC brand memory certainly takes the cake in these machines!  While Apple lists 4GB as the maximum amount of installable memory, our 8GB memory kit OWC8566DDR3S8GP is now tested and fully certified for the full 8GB utilization – a real performance benefit for memory intensive application loads. While we were at it, we also tested another brand 8GB memory kit and found it consistently caused kernel panics and non-boot issues. Now to be fair, we didn’t go deep into troubleshooting and determine if one or both of the other brand’s modules had a bad chip, pin, etc. What we’re stressing here is even if tech specs are the same, we recommend you make sure the product you are buying does list complete specs and testing parameters, including performance benchmarks, so you can make the best informed purchase decision.

    When we talk about how OWC brand memory meets or exceeds all Apple requirements for memory, it’s not just idle chatter or marketing-speak. Our on-premise testing lab enables us to physically confirm this fact for every machine listed in our compatibility charts.  Then, we back our quality assurance with a lifetime warranty.  How can you go wrong?