Momentus XT 2nd Gen Causes System Freezes
I replaced my HDD in my Mid-2009 (A1297) 17" MBP as soon as the 750G Momentus XT was released into the stores. I was hoping the problem with my old Momentus XT 500G had been fixed. Sadly not.
According to Seagate the problem is because the MBP SATA bus is SATA 1 (150) and the XT is SATA 2 (300) which causes a clash.
According to other postings around the web, it could also be the auto-spin-down feature on the drive. Yet another says it happened when Apple upgraded the EFI from 1.6 to 1.7
There have been several solutions posted around the net (trust me I've been looking for nearly 2 years).
The solutions include:
1. From Seagate - add a jumper to the disk which effectively makes it a SATA 1 (150) drive, others have said that doing this also disables the SSD portion of the drive, so that seems pretty pointlesss
2. Downgrade the EFI to 1.6 (sadly the 1.6 and 1.7 EFI's are specific to the 13" and 15" models (I can find no empirical evidence of anyone successfully downgrading a 17" EFI to solve the problem, or the versions needed)
3. Change the SATA cable for a later model, they claim that the Mid-2009 model came with a SATA 1 cable and the later models with SATA 2 cable, and swapping the cable solves the problems and creates a performance boost overall
4. Use a piece of software like "Crystal Disk" (Windows Only) to turn off the auto-spin-down on the hard disk drive itself.
So that's the background. So with regards to the solution, I see solution 1 as pointless. Solution 2, is potentially dangerous and getting it wrong could potentially screw the pooch on my system board
I'd like to try solution 3 most of all, it's a $30 solution but how can I tell if I have a SATA 1 or a SATA 2 cable, the people that have performed this switch-out on 13"/15" give part numbers which obv don't tally to the 17".
Solution 4 is possible if only I could find a mac equivalent to Crystal Disk (I don't have bootcamp, and VM's abstract the hardware layer.)
All help gratefully received.
UPDATE: The Jumper addition does not improve stability at all.
UPDATE 2: There is a 16 page discussion on Apple Communities here: https://discussions.apple.com/thread/385...