Yes, you do. Download and run to extract files, then put the files on a flash drive. When Windows can't find disks, click on the Load Drivers link and browse to the location with the drivers. [URL]
I just bought the T630 and I'm having some issues detecting the hard disks when deploying the os. Any guidance would be greatly appreciated. Hardware is as follows: I'm booting in BIOS mode from bootable USB flash drive (which works as I've loaded the os on a test pc) and trying to do OS deployment from Lifecycle Controller. Problem is after installer loads files I'm unable to see/detect the SAS disks in the RAID setup above. I've broken the mirror and re configured my RAID virtual disks and initialized the drives (status: Online/Ready) but still unable to see them! Do I need a driver for the Perch H730 controller in order for the windows installation to see the SAS drives? If so How do I deploy the drivers?  Please advise. Regards, DAXimusTT 
Unable to detect SAS drives in T630 OS deployment.