It means that data of the memory registry of K8 processor has been updated to DMI when the system is turned on. Those data are aimed to be written back to processor when PC wakes up from sleep mode of S3STR.
For explanation on installation please refer to chapter 4-1-4 of the manual and look under section: 'Configuring SATA Hard Drives - GIGABYTE SATA2 Controller', and you can click here to download GIGABYTE SATA2 RAID manual.