Bios Mods -The Best BIOS Update and Modification Source

Hi

Ahmed unlocked this bios on acer 7740G...Thanks

http://global-download.acer.com/GDFiles/...0876171796&Step1=Notebook&Step2=Aspire&Step3=Aspire%207740G&OS=721&LC=fr&BC=Acer&SC=EMEA_13

Unfortunately I just perceive that following the introduction of a second HDD instead of the DVD bay I can not boot from it.
I tried various utilities (Easy BCD, Dseo1.3b)
I tried statements Sata in the bios, but nothing works.
is it possible to solve the problem by a function in the bios?

Thank you in advance for your help
Regards

Sniff!!