In fact, the acceleration mode will work on your system when having the chipset mode set as
In your case, since your computer shows at bios level IDE and AHCI only, my best recommendation
is to contact the computer system manufacturer and verify with them if your computer supports the Acceleration option and if the RAID mode can be enabled at the bios level.
I sent this question to ASUS as well, and they replied me this:
For the problem, 24G SSD will be used automatically. There is no settings for it. It only for system cache.
But this doen not solve my question, how does the computer "automatically" know how I am going to use the SSD? What if I wish to use it as a normal hard drive to install my system?
They haven't replied me yet...
In order to use the SSD as cache to accelerate the system, the Chipset mode needs to be set as RAID. Without this the acceleration option will not be enabled.
To be honest, I do not know what the Express Cache is from the manufacturer side but from our side the tool we use to accelerate the system is called Intel® Rapid Storage Technology and it allows the user to manipulate raids or configure the system for the acceleration.
You can check more info about the Smart Response Technology at the following link:
It is also important to say that the SSD works faster than a normal HDD but if you decide to use the SSD as a bootable disk or create partitions, the acceleration feature will be disabled.
sy19890515: I found that the S400CA uses ExpressCache. Hopefully you still have the original folder on the C: drive called "eSupport". It had all the drivers and software. I re-installed windows 8 and detailed the process at the below link. See step 8 for ExpressCache. Hope this helps!!