Intel SSD 520 and any Apple Macs with Nvidia MCP79 chipset BUG.

[idata]

Hi Intel.

There are many Mac computers with Nvidia MCP79 chipset (Nvidia MCP79 is present in many models of iMac, Macbook, Macbook Pro, Macbook Air).

Nvidia MCP79 have SATA II controller.

There is well known bug with SSD based on SandForce SF-2281 and any Mac with Nvidia MCP79. SSD negotiated Link Speed is 1.5 Gigabit (SATA I). But it must be 3 Gigabit (SATA II).

OCZ already have fix for this issue (for their SSD):

http://www.ocztechnologyforum.com/forum/showthread.php?96106-Macbook-users-with-1.5Gb-s-link-instead... http://www.ocztechnologyforum.com/forum/showthread.php?96106-Macbook-users-with-1.5Gb-s-link-instead...

Corsair works on this issue (they have SSD based on SF-2281).

Patriot Memory works on this issue (they have SSD based on SF-2281).

Intel 520 SSD have same issue.

Intel will you fix this? Talk to Apple or release fix by yourself, but you must do something, because Intel 520 SSD with 150 MB/s read/write speed on Mac (with Nvidia MCP79) is indecent.

[idata]

I had the same problem, then did this, and it's fixed: http://support.apple.com/kb/HT3964 Intel-based Macs: Resetting the System Management Controller (SMC)

[AWong20]

I solved the problem connecting my ssd to the dvd-cd bay on my mac mini,

the hdd bay is locked by apple.

i have a ssd 520 intel 180GB and its working.

[Jose_H_Intel1 · Accepted solution]

Thank you all for posting,

I am sorry for the inconvenience.

Please note that the compatibility between different devices including (but not limited to) SSDs and Apple* products is very specific. Therefore, we recommend you to contact Apple* for a list of validated Intel® SSD models that can be used with their products.

Will the Intel® SSD work in my MacBook?

http://www.intel.com/support/ssdc/hpssd/sb/CS-032001.htm http://www.intel.com/support/ssdc/hpssd/sb/CS-032001.htm