Gigabyte GA-X99-UD4 Data Sheet

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Configuring SATA Hard Drive(s)

With the correct BIOS settings, you are ready to install Windows 8.1/8/7.

As some operating systems already include Intel

®

 SATA RAID/AHCI driver, you do not need to install separate 

RAID/AHCI driver during the Windows installation process. After the operating system is installed, we recommend 
that you install all required drivers from the motherboard driver disk using "Xpress Install" to ensure system 
performance and compatibility. If the operating system to be installed requires that you provide additional SATA 
RAID/AHCI driver during the OS installation process, please refer to the steps below:

Step 1: 
Copy the IRST folder under BootDrv in the driver disk to your USB thumb drive.

Step 2: 
Boot from the Windows setup disk and perform standard OS installation steps. When the screen requesting you 
to load the driver appears, select Browse.

Step 3: 
Insert the USB thumb drive and then browse to the location of the driver. The locations of the drivers are as follows:
Windows 32-bit: \iRST\32Bit
Windows 64-bit: \iRST\64Bit

Step 4: 
When a screen as shown in Figure 1 appears, select Intel(R) Desktop/Workstation/Server Express Chipset 
SATA RAID Controller and click Next to load the driver and continue the OS installation.

Figure 1