Is it possible to make Intel 965 chipset to be supported?
At least to boot mikrotik with options all-generic-ide
New Intel ICH chipset is WITHOUT PATA IDE, and for now they include for compatibility Marvell IDE chipset, which is supported only under libata drivers. It is bad to not be able use new Intel motherboards.
have you tried V3.0beta?
Beta9 - yes
It is not connecting even connected PATA IDE, cause controller chip is not ICH. Even most of linux distro had problems, but it is workaround by string in bootloader, and later they add driver for this controller, BUT! in libata (and it appears as /dev/sd*), and Mikrotik use old PATA drivers with /dev/hd*.
Try to use SATA drive under v3.0beta, it should work.
Problems is DOM Flash is still PATA 
But i will see, maybe some SATA->PATA convertor available.
Try to look for the SATA DOM flash drives, I think it is possible to buy them somewhere.
intel 965 should work in latest v3 RC