Buffered IDE Interface and IdeFix

[Thomas]

for secondary channel i think IDEfix is still needed but might be wrong

It's not wrong. You need IDEfix for the second channel. But if you only use a CD drive, you don't need to run the IDEfix program. It's sufficient to use atapi.device to access it.

[Thomas]

You CAN'T use both 44pin and 40pin header for primary channel.

You can. It's right that the 44pin and the first 40pin header share the first channel. But the adapter is designed so that you should be able to connect the master to the 44pin and the slave to the 40pin connector. The only thing you may not do is to connect master/slave to each header (i.e. three or four devices on the primary channel).