Solved What to set SATA mode when mixing SSD & HDD? Tags: SSD Controller NAS / RAID SATA Storage Last response: March 29, 2012 5:25 PM in Storage Share invulnarable27 March 29, 2012 6:56:15 AM Hello, Best practice is to set the BIOS SATA mode to AHCI when using a single SSD to support the TRIM command in Windows. However, I am using a RAID controller to RAID1 a pair between 2 HDD's. But in addition to that, 4 SSD's will be attached to the same SATA/RAID Controller. Setting the BIOS to RAID makes sense, but will the TRIM command still pass through to the 4 unRAIDed SSD's? Thank You PS. Not using Intel board/chipset, am running AMD Opteron. Read that Intel recently released drivers that pass through the RAID controller. Maybe AMD has it also? More about : set sata mode mixing ssd hdd chesteracorgi a b G Storage March 29, 2012 1:43:25 PM You'll have to check with the mobo OEM and maybe AMD directly, to see if the TRIM command passes through to the unraided SSDs. Best solution Dereck47 a c 400 G Storage March 29, 2012 3:15:45 PM Any drives that are not part of a RAID array will automatically default to AHCI mode, so the TRIM command will pass through. Related resources Install Windows 7 in ACHI or IDE sata mode for SSD ? - Forum Install XP on SSD in Compatibility mode OK? - Forum HDD not recognized in AHCI mode in W7 - Forum Mixing sata port types ( sata /gsata) - Forum What SATA Mode Should My Motherboard Be In? - Forum Can't find your answer ? Ask ! Get the answer JohnnyLucky a c 232 G Storage March 29, 2012 4:56:23 PM ^5 +1 what Dereck47 said. invulnarable27 March 29, 2012 5:25:09 PM Best answer selected by invulnarable27. invulnarable27 March 29, 2012 5:25:43 PM Thanks you guys! I appreciate the quick responses Can't find your answer ? Ask ! Publish Related resources: ForumHow to Set Up a SSD plus a Sata II on Windows 7 64bit? ForumSSD mode setting ForumWhat is the best way to set up a computer with SSD and a SATA drive ForumSSD Running slow on one SATA port ForumCan I mix SSD and SATA HDD in a JBOD and get the best of both? Forummixing sata and ata drives ForumASRock P55 Deluxe, Sata 6Gb/s card & SSD system drive, and NCQ woes ForumWindows 7 SSD AHCI mode - HELP! ForumInstallilng Intel SATA Preinstall driver (for AHCI/RAID mode ) Forum1 HDD vs. 2 HDD RAID-0 ForumSata 6gb/s vs sata 3gb/s Forum[Solved] Best SSD for the money - under 100$ ForumExternal or Internal HDD? ForumData recovery for SSD ForumSSD Performing? More resources Read discussions in other Storage categories Hard Drives DVD Drives DVD Writers Optical Media Flash Media NAS/RAID SSD Western Digital !