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Mid-2010 iMac Hard Drive Firmware Update 1.0
"iMac Hard Drive Firmware Update 1.0
This firmware update fixes a hard drive issue that may prevent some iMac (21.5-inch and 27-inch, Mid 2010) systems from booting properly.

System Requirements:
Mac OS X 10.6.7
iMac (21.5-inch and 27-inch, Mid 2010)"

Apple also has a related kbase doc on this issue/update: iMac (Mid 2010): iMac shuts down or stops responding during startup.
No info on the apple pages about what specific drive model(s) this is for but mid-2010 iMac owners with the problem can run software update or try the D/L updater to see if it applies to their drive. (I've not downloaded the updater and dug into the pkg for installer check info.)
  

Latest Mac Pro Blu-Ray and DVD Burner Upgrade reports
3 more reports (due to length added to a a separate page) from pre-2009 Mac Pro owners, including one LG BH10LS30 (SATA, using spare onboard SATA Ports) and 2 reports on Parallel ATA Optical Drive upgrades. (PATA drive reports getting very rare, as SATA drives are more common and even older Mac Pro owners may have already used the spare onboard SATA ports.) The owner of the Samsung SHS222LBEBSL noted sleep issues. (Which has not been uncommon with some drives in the past as regular readers remember...)
  
Another Report on SSD TRIM trick for OS X
(Another reply to the March 25th news post on Notes/Tricks for Enabling 3rd party SSD OS X TRIM Support)
"Intel SSDs and TRIM in 2011 MacBook Pro
I just wanted to drop you a quick note to mention that I'd used the TRIM driver hack described on your site to enable this on my new 2011 15" MBP.

Initially with my Intel X25-M G2 SSD recycled from a prior laptop until I could get one of the new generation it reported "No", which surprised me until I realized that I'd never upgraded the firmware from the original (pre-TRIM) version that came with it. The perils of being an early adopter. Intel's firmware update ISO won't run on the 2011 MBP, so I just lived without TRIM for a month or so, and saw no difference from the way the SSD had worked on the old 2008 MBP, other than the whole system being faster of course.

Last week, I replaced that with an 300GB Intel 320 (INTEL SSDSA2CW300G3) and it showed up as "Trim: Yes". I used CCC to copy the old SSD to a firewire disk, and then back onto the new SSD after the swap.

So far its working fine, and the performance is perceptibly faster than even the X25 was, although I haven't formally benchmarked it.

The X25 had run well for ~18 months as my sole disk, in daily use for 8-10 hours with about 10-20GB free (a real stress test for an SSD) and the only problems ever observed were rare situations where it took a long time to complete a disk operation and some application noticed and reported an error reading (usually) a file.

The real proof of whether TRIM improves that will take months, and I'm never going to run this disk 90% full so it won't get as much of a stress test. But after one week of daily use, it's been rock solid, no observed problems whatsoever.

FYI: I've also enabled the "noatime" fix and set the disk to never sleep (although I never observed any issues either way on the old disk, which ran part of its life without those and part with). My laptop is set to never sleep as I just shutdown when not in use (which is really fast), so I've never encountered any of the sleep issues some people have reported.

I've been a long-time reader, and always found your site informative and helpful. Keep up the good work.
-Ken"


  
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