Since no one in this thread gave the courtesy of a reply to nullterminator, I post my own query with skepticism that I will fair any better. But I won't know if I don't try, so here it goes...
It's now November 2015. I have the following 3 Macs in need of 1TB SSDs:
- MacBook Pro 5,5 (June 2009)
- iMac 9,1 (March 2009)
- iMac 11,1 (October 2009, QuadCore 2.8GHz)
NOTE: Both iMacs above will need the NewerTech AdaptaDrive 2.5" to 3.5" mounting bracket. And the Late 2009 iMac will also need an Inline Thermal Sensor Kit (when mounting an SSD in the hard drive slot.
All 3 Macs listed above are SATA II (3Gb/s). The 5,5 and 9,1 use the buggy Nvidia MCP79 controller that does not play well with most 6G (SATA III) SSDs, insofar as it will stupidly drop speeds down to SATA I (1.5Gb/s). (I don't know the late 2009 i7's SATA controller because I don't have the machine in front of me now, but supposedly it is NOT the MCP79 controller. Even so, I don't know about compatibility with SATA III 6G SSDs.)
I read every post in this thread. People are saying the Crucial M500 should work at 3Gb/s speeds. But does that apply to ALL in the M500 series? Are some capacities of the M500 incompatible (i.e., will they drop down the 1.5Gb/s speeds)?
So why this question? Because prices have come down. Let's face it. If you can get 1TB of storage for a reasonable price, you're going to do it. So I specifically want to know about 1TB Crucial M500 drives such as this:
http://www.pcmag.com/article2/0,2817,2455734,00.asp
Currently, you get 1TB for $345. A pretty amazing price. But is it 3Gb/s-compatible with the 2009 Macs I listed above?
Lastly... Yes, I am aware of the OWC Mercury Electra 3G 960GB. But there are 2 problems with it right now: (1) The 3G 960GB about twice the price of the 6G 960GB SSD sold by OWC, and (2) the 3GB 960GB is reported to be much, much slower than most other SSDs of the same category. That's really the only reason I am investigating SSDs that are not from OWC.