Chipset
ftp://ftp.hp.com/pub/softlib/software7/COL13912/pv-39094-1/sp26676.exe

VGA, Graphic
ftp://ftp.hp.com/pub/softlib/software7/COL13913/pv-39095-1/sp26671.exe

Sound, Audio(from website realtek)
http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=24&PFid=24&Level=4&Conn=3&DownTypeID=3&GetDown=false#High%20Definition%20Audio%20Codecs

(Windows 2000, Windows XP/2003(32/64 bits) Driver only (Executable file), r1.89)

LAN, Network
ftp://ftp.hp.com/pub/softlib/software7/COL13915/pv-39099-1/sp26678.exe

Modem
ftp://ftp.hp.com/pub/softlib/software7/COL13923/pv-39114-1/sp26682.exe

Multimedia Keyboard
ftp://ftp.hp.com/pub/softlib/software7/COL13922/pv-39113-1/sp26689.exe