I need bios update for Amptron with chipset Sis650 & sis691

Support Information:
Device Type: BIOS / Motherboard
Manufacturer: Amptron
Model: Sis650
Interface: Other
Operating System: DOS
Age of Device: < 2 years old
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=0&qa5=1&qa7=0&dp=2&qm0=Sis650&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=Amptron+BIOS+%2F+Motherboard+Amptron+Sis650+DOS+ )

Which Amptron? The Amptron website redirects you to the manufacturer.

ie: www.asrockamerica.com or www.ecsusa.com

http://www.amptron.com/html/support_main.html