The AD-755xA will be distributed configured as "primary Master".
If your notebook`s device slot needs to be configured as “secondary“ master, after build in may errors occur as wrong identification (slave),
slow speed (IDE1/ pio) or finally no detection.

>You can use tool from Notebook if drive will be recognized
or from a desktop pc by using an "IDE“ to “JAE KX15-50ELD1L“
Adapter

>Using tool is only via Windows possible, other operating
systems won`t be supported.

>Both models AD-7540A and AD-7543A can be used with it.

Softwaretool for secondary Master setting can be downloaded below:
Optiarc_G540_ReverseATA_Tool.zip

Softwaretool for primary Master setting can be downloaded below:
Optiarc_G540_NormalATA_Tool.zip

After usage a reboot of PC/ Notebook is required. You can also
recover setting by using the other tool.