I have a small issue here with my sata dvd burner; i am using it, the burner, but i'd like entire system to run smoothly as everything else is (thanks to Zephyrot!!). AFter 10.5.1 which i was using for some time, i installed 10.5.2 amd-efi, first version that came out.
Everything is running just fine, efi+mbr, toh 9.2.0. Mobo is GA-MA790X-DS4, Amd 790x chipset/SB600. I didnt install any additional third party drivers at initial install; later i installed my 8800 GTS 320MB which is also working fine.
Both hard drives are sata2 in sata-ahci mode and dvd writer is also sata, recognized, and working fine.
Deal is when i install VIA/SB600 kexts dvd burner won't work any more, it does read the disks but won't write. I get big improvement for the hard disks (tested with xbench before and after) when i installed chipset, about 30%, sata disks are no more on unknown bus, etc. Also what i noticed there is no more s.m.a.r.t, native command queue. after installing chipset. I dont care much about that (honestly i dont know much about it) as the rest of the system is working fine. Only dvd burner is causing me troubles now.
I made backup of IOATAFamily.kext, when i load it back, DVD starts working again.
What do you guys suggest? So, with default install everything works fine, with chipset installed i get better h.drives performance but i lose dvd writer.
(here is a screenshot i made)



Other little thing is i cant make the sound work anymore. ALC889a, in 10.5.1 loading kexts with my device and vendor id was working, not now. Any ideas?

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