[alexsar2000]

И все же, как подключить совместно PATA и SATA HDD на материнке с AMI BIOS?
Из Manuala к материнке:

IDE Configuration
OnBoard IDE Operate Mode
Please select [Compatible Mode] when you install legacy OS (Windows ME / 98SE) into SATA device. If you install legacy OS into IDE HDD while SATA devices are used, you also need to select [Compatible Mode]. If native OS (Windows 2000 / XP) is installed into SATA device, please select [Enhanced Mode]. You also need to select [Enhanced Mode] while native OS is installed into IDE HDD and SATA devices are used. If you do not install any SATA device, please also select [Enhanced Mode] no matter you use legacy OS or native OS for the system.
Please note that the following options will be varied depending on the “OnBoard IDE Operate Mode” ([Compatible Mode] or [Enhanced
Mode]) that you selected.
When [Enhanced Mode] is selected:
OnBoard IDE Controller
You may enable either the primary IDE channel or the secondary IDE channel.
Or you may enable both the primary and the secondary IDE channels by selecting [Both]. Set to [Disabled] will disable the both. Configuration options: [Disabled], [Primary], [Secondary], [Both].
When [Compatible Mode] is selected
Combined Mode Option
It allows you to select between [Pri IDE + SATA] and [SATA + Sec IDE]. If it is set to [Pri IDE + SATA], then the secondary IDE will not work. Likewise, if it is set to [SATA + Sec IDE], then the primary IDE will not work.

Because Intel® ICH5 south bridge only supports four IDE devices
under legacy OS (Windows ME / 98SE), you have to choose either
[Pri IDE + SATA] or [SATA + Sec IDE] when the installed SATA device is used with legacy OS.

Как я понял из этого проблематично будет подключить PATA и SATA HDD. Или я не прав?

Сейчас в компе 2 оптич. привода, и 2 HDD. Все висят на PATA (IDE).

PS. В режиме [Compatible Mode]/[Pri IDE + SATA] (без SATA привода) ОС вообще не загрузилась, викинуло на Синий экран.