And Welcome Litestream
DM is correct ........... the Intel controller is a known for stability and as far as I know IDE is a must for flashing any and all SSDs.....hit the
Manufactures forum for flashing procedure and applicable soft/flash ware ........... backup/clone all your data.....
.no one guarantee's the integrity of your data during flashing procedures
There is usually a flash loader you can download and use .....quite often it will be Linux based boot loader with the flash utility pre-installed.....
Depending on your board, it might be worth leaving it on the Intel controller re performance ..... suggest benching both controller once up and running again in ACHI......remember to have ACHI enabled before and during OS install for a streamlined experience
Aussie Allan