Lenovo h405 ahci unlock request

[seffzero]

as read from cpuZ:
Lenovo H405 desktop
Motherboard LENOVO Tilapia CRB (M3A760M v:1.01 printed on board)
Northbridge AMD 780G
Southbridge AMD SB700
BIOS LENOVO
Version D2KT31AUS

as displayed on boot:
American Megatrends Aptio 4.6.3
version 1.24.115

printed on bios chip:
686
AMIBIOS
C 1999
YY53
5136

I dumped the bios(attached) using AFUWINGUI.EXE aptio v3.04.02

  afuwin.rom (Size: 2 MB / Downloads: 34)

I opened the rom in amibcp and yes is selected under show for every option but most do not when you load into the bios, and every Access/use is set to default. When navigating to devices\ata drive setup\onchip sata type the only options are native or raid. If I open the strings tab it does have all the ahci strings as though the options exist but are hidden. I was going to change the access/use and then flash but tried a flash of the clean rom I dumped before hand and I simply receive "error 7, bios checksum error" and no flash occurs.

Thanks in advance