Intel H55 Express Chipset
Asus Essentio CG5275
http://www.asus.com/support/Download/14/11/4/2/30/
Version 8.9.0.1023
Intel SATA AHCI/RAID Driver 9.5.0.1037 (This looks like a newer version)
AHCI: F6 Floppy Disk Utility for AHCI
https://downloadcenter.intel.com/download/18668/AHCI-F6-Floppy-Disk-Utility-for-AHCI?product=42409
I would use the newer Driver 9.5.0.1037. Unzip the downloaded file to a new folder. When adding driver to Windows 7 installation. I think you can direct the installer to that folder or one of the folders in that unzipped folder.