ASUS Vivobook s550CB SSD unallocated after reset

[speedmcglory]

I have ASUS vivobook s550cb with windows 8 in it (OEM). It has 1 TB HDD+24GB SSD. Previously, before I reset all drives in this laptop with the OEM OS, the SSD seems to be fully allocated. After reset, the SSD is offline and unallocated. Though, I have made it online in GPT disk, it is still unallocated. How can I utilize the SSD back to its previous condition? I have read all instructions in several forums and I can't seem t find solutions.
FYI, I have not installed anything yet in this laptop after reset.
Here is the disk management status:

 

[KYHI]

right click the drive and select format..

 

[speedmcglory]

right click the drive and select format..

I want to use it as a caching drive, instead of storing files. How can I do it? I have followed the instruction from GUIDE Install ExpressCache for SSD Caching - Acer Community
I did the express cache only, though I have intel rapid start installed from the default. So, the partition in the SSD is all primary partition without hibernated partition. The process was successfully done. However, the ECCmd -info does not showing any caching statistic as I imagine it would be, the result is:
Microsoft Windows [Version 6.2.9200]
(c) 2012 Microsoft Corporation. All rights reserved.

C:\Users\Ricky>ECCmd -info
ExpressCache Command Version 1.0.100.0
Copyright⌐ 2010-2012 Condusiv Technologies.
Date Time: 4/11/2015 2:10:10:573 (RICKY #10)

and disk management shows that the space is not used at all, 22.36 GB capacity and 22.36 GB free in that volume.
The question is, am I doing it wrong or there should be other step or process that I need to do?

 

[Chillywinter]

I want to use it as a caching drive, instead of storing files. How can I do it? I have followed the instruction from GUIDE Install ExpressCache for SSD Caching - Acer Community
I did the express cache only, though I have intel rapid start installed from the default. So, the partition in the SSD is all primary partition without hibernated partition. The process was successfully done. However, the ECCmd -info does not showing any caching statistic as I imagine it would be, the result is:
Microsoft Windows [Version 6.2.9200]
(c) 2012 Microsoft Corporation. All rights reserved.

C:\Users\Ricky>ECCmd -info
ExpressCache Command Version 1.0.100.0
Copyright⌐ 2010-2012 Condusiv Technologies.
Date Time: 4/11/2015 2:10:10:573 (RICKY #10)

and disk management shows that the space is not used at all, 22.36 GB capacity and 22.36 GB free in that volume.
The question is, am I doing it wrong or there should be other step or process that I need to do?

Best idea is to unplug it and throw it away or use it as a USB storage device in an external housing.