Questions about RAID 0 and BIOS (Asus x99A)

[grendels]

So I'm pretty new to RAID, let me know if I'm doing something wrong.

the board I am doing this on is an Asus X99-A (2 Samsung 850 Pros)
I currently have two SSDs linked together in RAID 0, and a 900gb HD. The HD has my OS, and I plan to put programs on the RAIDed SSDs (they have nothing on them so far). I would like to just have the OS on the SSDs and use the HDDs for what it's useful for. I originally went into the BIOS and setup RAID 0 between the two SSDs, which seemed to work (at the point the OS was still on the HDD). However in this configuration, I was totally unable to see the SDDs in anything but the BIOS, and when I put my Windows disk in it didn't show the newly created drive in the installation window (even when I unplugged the HDD). So I scratched that and just went into the Disk manager and Raided there. My current read is 1090 mb/s, write 1037 mb/s (random read write:, 69806 64502) which is fine and all but my OS is still on the slower Hard Drive. So I currently have three avenues: figure out how to link in RAID through the BIOS and set as the boot drive, just continue doing what I'm doing (I don't care a massive amount about speed decreases but I don't want my work flow encumbered), or just put OS and programs on one of the SSDs. I'd like some help with the former, but would there even really be that much a performance boost?


tl'dr: RAID 0 configuration not cooperating with the BIOS and not showing up at all in Windows 7 install disk. currently using HDD for OS and putting programs on the SSDS RAIDed through windows. Should I try and fix or is changing even going to give me that much of a speed boost?

 

[Dahak]

You are on the right track, but to get the raided drives to be see during install you will need to have a usb drive and copy the driver over.

On asus' website you have to download the SATA driver package Direct Link

When you extract that you will see a folder in there called Driver -> Disk copy the correct folder to a usb drive

When doing the install click on advanced and there is an option to specify additional drivers.
Point to the driver folder on you usb drive and then it should show the drives

Now from a performance side I'm not sure as I only have 1 ssd in any of my computer and never tried raiding them

 

[PhIlLy ChEeSe]

During boot hit the Control+I and set the SSD's in raid 0>reboot>set SSD'S to ACHI(you can install rad driver from disk)>after the OS is installed>revert the SSD'S back to raid in bios.
You have to use the drivers of the board disk during OS install, when the OS start you'll need to hit F6 so you can install the drivers.