I downloaded the evaluation version of Windows Vista x64 for AMD. While installing, it asked for the SATA driver which I provided from my driver floppy, but that is for 32-bit OS only. I have been searching the driver for the OS, but of no avail. I searched at the company's website and also at http://www.driverguide.com , but didn't get there either Could anybody please tell me where I can download the driver?? My SATA controller chip is Si3112r. Please post the link if you have got it. Thanks in advance. Please check my signature for the specs.