Acer Aspire 5720 icl50

[enlightyourlife]

Hello

I have an Acer Aspire 5720 icl 50. (running modded black version 1.45 bios, but tried all official biosses too.)
I think i need to flash an new option rom because it will only boot from the optical drive. Hdd, usb etc. is recognised in the bios, but it does'nt boot.
After the boot process the work fine. Installing windows goes without u problem.

It uses the ich8m controller. i have put the mainboard in an 7720 and it also sees two hard drive but the problem stays the same.(so it's back an 5720 now)

Im note sure i'm in the right forum, so feel free to move the threat if needed.