@tuc47:
I have moved your request into the better matching Sub-Forum about the outdated Windows Operating Systems XP/W2k/W2k3.
The method how to get the OS installed in AHCI mode depends on the chipset manufacturer (AMD or Intel) of your mainboard/system.
Gerenerally it is recommended to integrate the related AHCI driver into the XP Image.
You can find the guide about how to integrate the Intel AHCI driver >here<. If your system should have an AMD chipset, you should look into >this< guide.

@tuc47:
Can you explain why you don't want to install XP in AHCI mode?
This will be much safer than a switch from IDE to AHCI while running an OS.

@tuc47:
The "mod+signed Universal 32bit Intel RST textmode driver v11.2.0.1006", which I am offering >here<, works with all Intel chipset systems from ESB2/ICH7 up to 300-Series Chipsets. All you need to know is the DeviceID of your on-board Intel SATA AHCI Controller.

@tuc47:
The easiest method to find the specific DeviceID of an on-board Intel SATA AHCI Controller is the following (requires a Windows OS running in AHCI mode on the related PC):
1. Open the Device Manager and expand the section "IDE ATA/ATAPI Controllers".
2. Right-click onto the listed AHCI Controller and choose the options "Properties" > "Details" > "Property" > "HardwareIDs".
3. The DeviceID named DEV_xxxx (4 characters of numbers or letters) is within the listed HardwareIDs.

Tips: >Here< is a table, where I have listed the DeviceIDs of nearly all Intel SATA AHCI and RAID Controllers.
As you can see, the DeviceID of your MSI desktop mainboard with an Intel Z87 chipset is either DEV_8C02 or DEV_9C02.
If your system should currently run in IDE mode, you can look for the DeviceID of the listed "Standard Dual Channel PCI IDE Controller". The first 2 characters are usually the same for Intel's IDE and AHCI Controller. That means, that a DeviceID DEV_8Cxx would indicate, that the DeviceID of the related AHCI Controller will be DEV_DEV_8C02, whereas it would be DEV_9C02, if you find for the IDE Controller a DeviceID DEV_9Cxx.

Zitat von tuc47 im Beitrag #11

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I also have Widows 10 running in sata mode on this same motherboard
it says intel c220 series sata ahci

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