I believe when you set SATA ports to AHCI mode in BIOS, hot swap is supported already. Or, you can enable the onboard ESRT2 RAID, which also supports hot swap.
If you need the AHCI driver, here it is: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=18667
Yes, thank you. The AHCI driver has it.
For some reason the BIOS mode has been switch to IDE. I don't remember I have done that. At least, I have no reason to do it.
When I switched it back to AHCI mode there is a Hot Swap function.