Hi modjoguy, the bios must see your SATA hard disk before windows can see your SATA hard disk drive. To check this please press the delete key every two seconds as soon as you power on the system. (Note 1: Some motherboards that do not show the SATA II drive while in the bios may need its jumper set to SATA I in order for the bios to see the SATA drive). (See the drives large white sticker on the hard disk drive for SATA I location of jumper).
(Note 2: Gigabyte GA-K8VM800M rev 2.x & Gigabyte GA-K8VM800M-RH motherboards use the same manual). The Gigabyte GA-K8VM800M rev 1.x manual is slightly different, thus page numbers differ from the other two above.
Here is the link for all three: http://www.giga-byte.com/Search/Search_List.aspx?Keyword=K8VM800M&SearchType=Spec
The bios main menu will open. Open your manual (rev2.0 & RH) to page 38 & read under the listing, "IDE Channel 2/3 Master". The idea is your SATA drives should be listed at 2/3.
Once they are seen you need to open Advanced BIOS Features page 40. You can load the advanced bios features by pressing "Ctrl+F1" keys. You must list the SATA drive you want as the primary hard disk drive (Usually its the model number of the drive), that will have windows installed on it.
Good luck modjoguy!
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