I got my Samsung 840 Pro 256GB SSD a this week, and installed Win8 via Bootcamp 5. Thereby I enabled ACHI using this guide. Only I didn`t find the listed subkey, so I changed the ones under instead:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\storahci\ Locate the Error Control entry which should have a value of 3. Right-click on the entry name, select Modify, change the value from 3 to 0 and click OK.Everything worked alright, and Samsung Magician shows that ACHI is enabled.
However, as a lot of the posters here, my computers freezes after being in sleepmode. Its just stuck on the picture you have to press enter to get rid off in order to enter password (except the clock and date isn`t showing). A couple of times the computer BSOD`s. The only thing working is moving the mouse arrow around.
I have tried both Standard ACHI drivers and Intels drivers, same result with both of them.
I am sorry if someone has postet the answer to this before, I have briefed trough the forum post, unable to find anything.
I am on a MacBook Pro 15" Mid 2010, running Intel C2D 2,4Ghz.
i have exactly same problem with Samsung SSD 840 500GB, everything runs well, but wake up is impossible from sleep, i can only move with mouse pointer for a while than BSOD comes :/