Windows XP SP2 Do not connect unit to the internet without this installed.nVidia 6.86 Chipset Drivers.
AVAST! Home Edition I do not know how many times we have posted Virus protections on this forum, but this one is free and works.
Audio is the Realtek ALC850, so if this on does not work
ABIT HD driver connect to the internet and locate a driver.
Install everything in that order, before connecting to the internet and updating the OS, especially having the REALTEK driver installed prior.