Originally Posted by X-ray
Originally Posted by 8bitG33k
Sorry, I didn't realize you had two different HDD's... It will probaby still work but the slower drive may slow down the faster drive to the point that it is not feasible to setup RAID. You could give it a try, since you have your OS on it's own SSD you could install the drives with RAID as well as separately and then run HD Tune and benchmark the individual setups and see what mileage you are getting.
the two 1 TB HDs are 7200RPM, so that is not an issue, they are from different manufactures though, but I thought that is not a problem. the only concern is that my SSD is not part of RAID, and shouldn't it be set to ACHI? what about the trim for it?
You can RAID different brand HDDs fine. You want RAID mode. You can't configure a RAID array without the sata mode being set to RAID. RAID has all the pros of AHCI and then some.
TRIM will work fine for the SSD with the latest IRST driver.
Take a look at the link i gave earlier, there are guides and info for all your needs.