Open config.plist on the EFI partition with Clover Configurator and followed you guide and entered Comment : Change HDAS to HDEF: FIND : 48444153:REPLACE : 48444546. What do these numbers mean? Where do you get them?
In the 100 series motherboard DSDT's, HDEF has been changed to HDAS. So to enable audio we need to change HDAS to HDEF. The numbers are a conversion from Ascii to Hex, HDAS converted is 48444153. HDEF is 48444546. This can then placed in the ACPI section/DSDT patches as you've done.
.My USB 3 pen drive didn't work on any port
-uia_exclude_ss disables Intel USB3, if you installed GenericUSBXHCI.kext all of your ASMedia rear USB ports should have worked.
probably something to do with bluetooth, magic keyboard and magic trackpad 2 only work if i put wifi/bt antenna right next to magic devices(need help of harry potter). if antenna located 1 meter away, courser becomes jumpy and VERY inaccurate and keyboard becomes unresponsive.
I've got my bluetooth trackpad connected and its about a meter away from the receiver. Its working as it should, a magic mouse may respond differently and that I can't test.
network interfaces mixed up, wifi called either and vice versa.(not a big problem, just annoying)
I'm not sure why this is the case, I tried to replicate it by removing the interfaces.plist but it displays them correctly. Try this, disconnect your wifi from the network, delete the plist and restart. See if ethernet is displayed correctly, then enable network connection via wifi.
I aso noticed that GPU fans ramp up for 3-5 seconds every 3-5 minutes during sleep.
I've not tested sleep in 10.11.4 and it is on my list of to do's. If the system is asleep it shouldn't wake at all. At this point I have no suggestions but after the weekend I'll test sleep.
When I tried ssdt usb, I just copied everything from guide, and after reboot my system lost connection with all input devices, so I just reinstalled system again.
You need to check your ports in IORegistry Explorer. Your 450D case has 2x USB 3, where as mine has 2x USB3 and 2 x USB2. The SSDT is injecting USB 2 and 3 that you won't have connected. Thats why I added a little guide and not just the SSDT.
Note: You don't have to reinstall when you make an adjustment to EFI/EFI folder, just boot with the UniBeast installer, mount your installation drives EFI partition, remove the last thing you did that prevented boot. Restart and boot from installation drive.