AHCI & IDE mode Tags: Homebuilt Windows XP Systems Last response: August 23, 2010 1:33 PM in Systems Share Anonymous Homebuilt system Expert August 22, 2010 3:15:16 AM Hello, i have installed win xp black edition in drive C & win7 ultimate in drive E in IDE mode but when i change it to AHCI mode it does not work..what should i do?please help More about : ahci ide mode | E-mail me updates | Report abuse Register or log in to remove EXT64 August 22, 2010 3:53:00 AM You can't change the drive mode with windows already installed (without doing a little repair work). I'd suggest changing it back to IDE and leaving it, as the gains of AHCI are minimal. | Report abuse guanyu210379 Homebuilt system Expert August 23, 2010 1:33:16 PM You have to do some working on the registries to make working. Edit the registries first and then change them in BIOS. ^+1 EXT64 : Just leave them be, since the gains is minimal. | Report abuse Ask the community Publish Tom's Hardware>Forum>Systems>AHCI & IDE mode> Related ressources: ForumAHCI and RAID ForumSSD and SATA fake-RAID combo - no AHCI ForumAhci versus raid in Windows 8 bios/HP p7 1414 ForumSwitched to AHCI from RAID0, Recoverable? ForumAHCI bluesreen startup ForumEmachine EL1300G SATA/ AHCI driver needed ForumShould ssd be set to ahci or ide ForumShould ssd be set to ahci or ide ForumSSD uses AHCI , HDD uses IDE and the BIOS won't recognise either drive ForumSSD uses AHCI , HDD uses IDE and the BIOS won't recognise either drive ForumFrom IDE to AHCI ForumWindows 7 SSD AHCI mode - HELP! ForumAHCI port0 device error ForumRaid 0 in Windows 7 without AHCI set in registry ForumRunning SSD without AHCI ? ForumFujitsu V6515 Ahci bios ForumAhci ForumCan motherboards run separate SATA ports on different modes? IDE/ AHCI ForumNative AHCI support in BIOS for HDD ForumDifference between IDE and AHCI ? More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !