Performance spec can be found at the link below. Keep in mind this is a SATA 6GB SSD so if your computer is SATA 1.5 or SATA 3 Gb the SSD will be limited to the slower speed of the computer.
http://kb.sandisk.com/app/answers/detail/a_id/10864
SSD need to be aligned to 4K boundaries. How are you checking alignment? AS SSD is a free download and will show the alignment in the top left. Look for the number if they are Green with “OK” beside them the disk is aligned correctly.
If you reinstall Win 7 will take care of everything for you. All you need to do is format it with the default settings.
