Hi everyone, I am in need for extra storage and I have two laptops that I have pulled the hard drives out. They are 250GB Crucial SSD's, identical models. The laptops themselves were throwaways, I will not be buying additional storage. I'd like to set them up as RAID 0 as I do not need the redundancy, just fast access to the max capacity of the volumes. My motherboard is the [Asus M5A99X EVO R2.0] - manual link below https://images10.newegg.com/UploadF...nce/ASUS/E7428_M5A99X_EVO_R21452966656285.pdf [Current SATA Configuration] SATA1: 500GB SSD (OS) SATA2: ----------- SATA3: 1TB HD (Secondary Storage) SATA4: ----------- SATA5: ----------- SATA6: ----------- I also have a 500GB NVMe m.2 plugged into my PCI-E port using an adapter and 4TB USB External HD as my primary backup device. I have never configured a RAID array before and would like to set one up on my machine however theres a few things I am confused about. It says in my manual that ports 1-4 and 5-6 are grouped together. Currently they are both set to AHCI. The groups can be confiured as follows if [Port1-4 -> AHCI] -> [Port5-6 -> AHCI or IDE] if [Port1-4 -> RAID] -> [Port5-6 -> RAID or IDE] if [Port1-4 -> IDE] -> [Port5-6 -> IDE] I dont want to change where the OS is, just add a RAID array to the current config but it im not sure if I can do that. q1) If I change ports 1-4 to RAID do all 4 drives need to be set up as RAID devices? q2) Can I move my 1TB to say port 2 and have ports 3 & 4 set up as RAID? q3) Can i set ports1-4 to raid, have my raid set up on 1&2, and have my OS and Secondary as 5-6 on IDE? - Is IDE going to give me any disadvantages to how it currently operates on AHCI? q4) Will moving a hard drive to a new SATA port change the drive letters and consequently cause problems with anything that has paths set up between my drives (SATA and PCI-E)? I did try to change all ports to RAID type and load my OS but it got into a boot loop and didnt work. WHen i changed it back to AHCI it gave me some startup repair messages that gave me a little scare but its working fine now. When I initialized the ports to RAID it did give me a RAID config option during boot but I did not know what I should be looking for to allow the OS SSD to load properly. I did read that RAID has the same benefits as AHCI so thought i was able to run the PC in that config fine. Thanks for reading, any help is appreciated.