Since changing the battery on the Gigabyte 8KNXP mboard the SATA Hard Drive isn't being seen. How do I setup the BIOS for the SATA hard drive to be used & seen for Windows to start up again?

The BIOS should not prevent you from installing Windows XP.
If your hard disk is a SATA hard drive then -
The problem is that XP installation CD does not have a SATA driver, unless you have a SATA drive on a disk etc. and can install the driver when XP asks for a hard drive driver then, XP cannot detect the hard disk and therefore won't install XP. The FIX. Go into the BIOS and disable the SATA drive (enable IDE emulation), this will make XP think it is a IDE/PATA hard disk. Then you can install XP normally. When Windows has been installed then install all the device drivers (including the SATA driver), then shut down and boot up and got into the BIOS and enable the SATA drive.

Have you tried connecting the SATA hard-drive to a different computer, just to prove that it is not a "dud" ?

Is the SATA hard-drive getting power?
(It should warm-up a bit, and you make feel it vibrate as it spins.)

Have you tried a different SATA cable between the hard-drive and the SATA connector on the motherboard?

Check the BIOS settings, to be sure that detection of SATA drives is "enabled".

sound like you either have a dead SATA socket on the board, use another one, or at worst try a PATA hard drive, second thought is possibly go into the bios and make sure you have no previous hardware raid arrays left behind, sounds odd.. but i have seen it cause similar problems before.

Dear friend you i think you have to operating system in to hard drive.. Please... format the IDE hard drive... if IDE hard drive is Primary hard drive then go to the BIOS, In BIOS go Boot Sequence you may see there Hard disk Priority option.. Let set Sata hard drive as first one.. Then your computer Boot from sata Harddrive... thanks...

Please do this first.. Set sata as first hard Drive from BIOS Hard disk Priority Option.. then Format IDE Hard drive..

Thanks Sumon.. i think it will solve your problem..

I had the similar problem with the K8MM-V Motherboard. I has been using a PATA HDD. I need to intall a 250Gig Seagate SATA HDD. Despit all the Bios Configs the PC Could not detec the HDD. Untill i Put a Jumper on the HDD  limiting the SATA HDD to 1.5gig of OS instead of 3gig. Look at the Label of your HDD

You must enter setup at boot and select the CD/DVD as first boot. Then ensure that the BIOS settings have SATA enabled. When CD/DVD is first boot watch the screen for 'press any key to boot from cd' message is displayed. The boot screen will say how to enter setup. Typical buttons are F2, Delete, F1, F10 -you did not say which manufacturer. OEM trumps mobo maker with BIOS setup.

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!
Run into a snag just post it here.
Mike

I had this trouble had to reset BIOS to default then it worked but would either recognize IDE drive and not SATA remove IDE SATA was recognized
Its something in the BIOS setup As I do not know your BIOS you will have to check it out with *********** board manual how to do it to setup both drives

check motherboard manual it seems you may have the sata drives plugged into wrong number socket they should have numbers on them sata 1 etc

you problem is most likely that your bios is out of date. download the latest bios updates for your motherboard and then when you install windows format you HDD with the ntfs system (using the long formatt system not the quick format). Then you should install the bios update. then your mboard shoud no longer have the problem of recognising your large capacity HDD. thanks