Hi Sandro
In order to install XP onto your SATA drive, with the A7n8x mainboard or
similar without a *fully* integrated (or native) SATA controller, you need
to follow a particular method to install the SATA drivers.
You'll need to have the SATA drivers available on a floppy disk ready for
the install process - if you look on the CD supplied with your mainboard
there will be a SATA drivers folder. Copy ALL the contents of that folder
onto a floppy disk or, if you follow the link below to the Silicon Image
SATA driver download from Asus that will work - simply download and unzip
ALL the contents onto a floppy disk.
http://www.asus.com.tw/support/download/item.aspx?ModelName=A7N8X Deluxe
Make sure that, when you copy the files onto a floppy disk, you transfer all
the files from the SATA driver folder - special attention needed to ensure
you include all relevant files.
Check your mainboard manual for the appropriate BIOS settings for booting
from SATA.
As the XP set-up begins you will be prompted to 'Press F6 to specify
third-party RAID or SCSI drivers' - at this point you should press F6 and,
when asked, insert the floppy disk with the relevant drivers. Select the
appropriate driver when asked and continue with the setup. There may be
some delays during this process and the set-up may appear to be continuing
without recognising the key-press - so don't panic.
When successful you'll be able to select the HD to install on. If you are
not given the HD you have not completed the procedure correctly. Check you
are using the correct drivers, have any relevant BIOS updates for your
mainboard, and try again.
Hope that helps
Pete