I recently built a rig by moving my old system SSD (a sata2 samsung PM800 from 2010) into an ivybridge system on a maximus V gene mobo. I sysprep'd the OS, moved it, and got windows 7 activated. But the PM800 was dog slow, by any standards:
sequential read (500MB): 186 mB/s
sequential write (500MB): 7.6 mB/s
4k QD32 (50MB) read: 25.45 mB/s
4k QD32 (50MB) write: 6.25 mB/s
The SSD's heath is good; it has about 25% free space, and most of the characteristics of a healthy disk. The OS was not moved on the disk, so its not a question of a misaligned partition. And the sata3 port it's connected to is faster (and presumably backwards compatible) with it's sata2 connection. Also, it performed just fine (anecdotally) before the move. Hence I am guessing the issue is with the controller, not with the disk itself (and thus it's relevancy to this subforum and not another)
Does anyone know how I might be able to restore performance to this disk, and what is wrong with it?
sequential read (500MB): 186 mB/s
sequential write (500MB): 7.6 mB/s
4k QD32 (50MB) read: 25.45 mB/s
4k QD32 (50MB) write: 6.25 mB/s
The SSD's heath is good; it has about 25% free space, and most of the characteristics of a healthy disk. The OS was not moved on the disk, so its not a question of a misaligned partition. And the sata3 port it's connected to is faster (and presumably backwards compatible) with it's sata2 connection. Also, it performed just fine (anecdotally) before the move. Hence I am guessing the issue is with the controller, not with the disk itself (and thus it's relevancy to this subforum and not another)
Does anyone know how I might be able to restore performance to this disk, and what is wrong with it?