How To Change Disk Controller Mode From IDE to AHCI Without Reinstalling Windows XP Disk controller for SATA HDDs can operate in both AHCI and IDE compatible mode. You can switch between them the in BIOS setup. AHCI mode works faster and has more features, while IDE compatible mode requires no special drivers to install older operating systems like Windows XP. Unfortunately, if you decide to switch between IDE and AHCI after installing Windows, you will get a BSOD (blue screen of death) during the next boot. This article explains how to switch from IDE to AHCI after installation of Windows XP, how to change disk controller mode from IDE to AHCI without reinstalling Windows. Contents • • • • • • • 1. Intended audience This article is for users who want to switch SATA controller from IDE-compatible mode (aka ATA-compatible mode) to AHCI mode without reinstalling Windows XP. Download Standard SATA AHCI Controller Drivers Windows 10 It is reported that on Windows 10, there always exists a SATA AHCI controller driver compatibility problem. After updating to Windows 10, your Windows 7 SATA AHCI controller driver can no longer be compatible with Windows 10. Look under 'IDE ATA ATAPI Controllers' and then right click on 'Standard SATA AHCI Controller' and click 'Update Driver Software'. Click on 'Browse my computer for driver software' and then browse to where the AMD installer extracted the files. Havit gaming mouse driver. Primary motivation for such a switch is to gain additional performance from disk I/O (SATA NCQ), especially for SSD hardware. Also recommendations from this article are useful in dual-boot configurations, where other OS must use SATA controller in AHCI mode, and Windows XP as a first OS is using SATA controller in IDE mode. Check prerequisites • Make sure your operating system is Windows XP. If you are using Windows 7 or Vista, then. • Reboot your PC, enter BIOS setup (press DEL or F1) and make sure that currently SATA controller is configured in IDE mode; and support of AHCI mode exists in BIOS. Find or download F6 textmode AHCI driver for your SATA controller • Find out the name of your chipset (south bridge). It should be in the user guide of your motherboard or notebook, or at the manufacturer's website. Also one can try to find the SATA controller in the Windows Device Manager under 'IDE ATA/ATAPI controllers' or 'Storage controllers'. ![]() • Check your motherboard/notebook driver CD, try to find F6 textmode AHCI driver for your chipset (southbridge). F6 textmode AHCI driver consists of TXTSETUP.OEM, one or several INF files(s), SYS file(s) and CAT file(s). SYS file is a driver itself, CAT file is a catalog of digital signatures to verify integrity of the driver, and INF is an informational file for Windows operating system how to detect hardware, and how to install/uninstall the driver. For example, Intel AHCI driver for ICH10R chipset consists of iaahci.cat, iaAHCI.inf, iastor.cat, iaStor.inf, IaStor.sys, and TXTSETUP.OEM. • If you could not find F6 textmode AHCI driver on the CD, check manufacturer's website of the motherboard/notebook, and also check manufacturer's website of the chipset. For example, for ASUS EEC PC 901 netbook with Intel ICH7-M southbridge, you should check both ASUS and Intel websites. Also downloading latest drivers from manufacturer's website may be helpful if old version of driver from motherboard/notebook CD was found, but didn't work because of alleged bugs. (But bear in mind that sometimes new version of drivers has new bugs, not present in old version.) 4. ![]() Perform upgrade installation of AHCI driver via Windows Device Manager Right-click My Computer, choose Properties, then Device Manager. Expand IDE ATA/ATAPI controllers, then right-click on Primary IDE Channel and choose Update Driver. From the context menu. New detected hardware balloons may appear in the tray area after the first reboot after driver update. Also Windows may ask permission to reboot just after installing the drivers, allow second reboot if Windows asks for it. Troubleshooting Reasons why it might not work: • You have downloaded a driver for wrong hardware, not for your chipset (south bridge). • You have downloaded a driver for different operating system (not Windows XP). • You have downloaded 64-bit driver for 32-bit OS or vice versa. • You didn't switch SATA controller from IDE-compatible mode to AHCI mode in the BIOS setup during first reboot.
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