Help with adding msata ssd to laptop

[youngls]

Does anyone know if this will work? I want to add Samsung 860 EVO 250GB mSATA Internal SSD to my laptop model 17-j185nr with Motherboard DSC HM87 750M/2G STD.  The original documentation has this

[banhien]

@youngls 

Your machine already has 16GB of RAM, its specs

  https://support.hp.com/au-en/document/c04126429

That means the M.2 SATA for cache is empty. But please read the following discussion

   https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/replacement-of-ssd-mSATA-drive...

Regards.

[Huffer · Accepted solution]

Well it depends on how you mean "work". The mSATA is designed to be used as an acceleration cache which works in conjunction with the hard drive to speed it up. That is why 24 and 32 gig mSATA mSSDs were offered. No need for anything larger. If you have a drive connected to the main 2.5 inch SATA port then you cannot boot from the mSATA mSSD or use it as the OS disk. If the mSATA is the only drive in the system it can be bootable and used to hold Windows. However, what people fail to understand is that mSATA is actually an older technology. It is not the same as an M.2 SSD which is a newer thing. An mSATA mSSD is not the superfast thing that an M.2 SSD can be. It would be cheaper and easier to just use a modern 2.5 inch SATA SSD as the main storage and forget the mSATA. mSATAs are a bit more expensive than a current model 2.5 inch SATA SSD per gig and no faster, possibly even not quite as fast. 

[youngls]

Thank you, I wanted to use it as the main bootable drive and thought it would be faster.

[youngls]

Thank you