Only Sony has this bios update but is 5 years old where could I find a newer bios update. This M.B is not even listed in Asus.com

Support Information:
Device Type: BIOS / Motherboard
Manufacturer: ASUS
Model: P4B266LM
Interface: IDE
Operating System: Windows XP Professional
Age of Device: < 2 years old
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=122&qa5=1&qa7=1500&dp=2&qm0=P4B266LM&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=ASUS+BIOS+%2F+Motherboard++P4B266LM+Windows+XP+P rofessional+) | Research manufacturer ASUS (http://members.driverguide.com/index.php?action=getinfo&companyid=122)

Perhaps these links will help:

http://www.elhvb.com/mboards/OEM/Sony/PCV3.html

http://www.elhvb.com/mboards/OEM/Sony/PCV1.html