Gigabyte GA-EP31-DS3L (rev 2.1) Bios

Sir my English is not good
I just met http://www.bios-mods.com Not expected to exist.


I tried adjusting the bios.
But found a stalemate.
I need your help
Mod BIOS for my motherboard.
 
I see in CPU-Z
Manufacturer:   Gigabyte
Model:   GA-EP31-DS3L (rev 2.1)
CPU :   Intel Core 2 Duo  E8600
Chipset :   Intel P35/G33/G31  REV. 10
Southbridge :   Intel 82801GB (ICH7/R)  REV. A1

์I notice CPU-Z show chipset P35  not P31
 
Memory :  DDR2  PC2-8900  2x2048 Mbytes
Manufacturer:   Crucial Technology
Part Number :  CT25664AA1067.M16F
 
Product Link: 
https://www.gigabyte.com/Motherboard/GA-...-rev-21#ov
BIOS Link:
https://www.gigabyte.com/Motherboard/GA-...support-dl 

Thank you in advance.
My best regard.

์Newbie