how to enable msata for cache drive- and prove it is working FAST!!!
link that helps,
http://support.lenovo.com/en_US/downloads/...?DocID=HT074404

what lenovo did not mention in the guide,
- for y500 sli - intel rapid storage technology software ( enable acceleration ) is not working on win 8 64 bit
- so all you need is lenovo expresscache from the link - beware of 32 and 64 bit
- after you install your msata into the laptop, make sure to check the msata detect by bios and showing details here


- also access bios and set boot mode to legacy support ( so that your msata will be shown there at boot
  device priority and for future you will be able to set msata to 1st boot and maybe install win8 directly at msata.

also,
- 1st time installing new or used msata, please uninstall any "intel rapid storage and lenovo expresscache
  software 1st" then reboot
- after that go right click my computer--> manage--> disk management and right click on your msata and
  delete volume ( let it be as default , no drive letter, no partition, yup the original unallocated space.
- install lenovo expresscache and reboot
- WALLA you will notice speedy boot of your win 8 64bit right away, and you may run this command to test your msata WORKING AS CACHE DRIVE OR NOT

1) Open the Start Menu, click on "All Programs", then click on "Accessories". Right-click on "Command Prompt" and then choose "Run as administrator" from the menu that appears.

2)Type "eccmd.exe -info" (without the quotes) and press Enter
- result sould be some statistic like mine


all above all FU lenovo and Intel for this complicated fakap method.
additional infos,
- your msata drive will available for view in disk management but not in my computer, also msata space is not available as normal storage( no copy and paste there like normal hard disk).

before setting as cache drive, please format and partition to test your msata 1st using as ssd software , this just to bench hehe 

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