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Using DSDT on the GA-EP45-DS3L DSDT compatability It has been confirmed by comparing original DSDT's from a linux acipdump that a DSDT for this mobo is exactly the same for. GA-EP43-DS3L GA-EP45-UD3L Thread Status This is now considered an old thread which was originally put together when I was using 10.5 with the idea of creating a DSDT file with Koalala's ACPIPatcher by using your current BIOS file from the manufacturer. Then adding video, ethernet and various patches to it allowing for a stable, working Snow Leopard system.
However, since writing this guide, it has become clear that DSDT goes a lot deeper and is more complex than this guide was intended for so I have done my best to patch this front page with new info, although most of it remains as it first was. There is a new thread started by iSoprano which, with the help of MasterChief, mm67 and many others, is aiming to teach a better understanding of DSDT and allow you to end up with a more refined DSDT for Gigabyte motherboards. I have been working through that thread to try and learn more about DSDT and thanks to mm67, and a few tweaks done here, the DSDT now used for this motherboard is posted below. Note, I now don't include information for our video cards in DSDT as it's not part of the original hardware in BIOS and not having it allows for a more portable DSDT.
For our motherboard, I can now recommend the option of using. Based on version F11c, it has a few modifications to the DSDT in the BIOS to allow all of the newest fixes without us having the need for a separate DSDT.aml file. News 26th January 2010 - 07:53 New iASLme available Mitchde has continued with his regular monthly release of iASLme which now includes the latest version of Intel's DSDT compiler/decompiler. You can find it 10th December 2009 - 15:35 New DSDT for GA-EP45-DS3L With thanks to mm67, I have tweaked his new DSDT for use with our motherboard and Thiagomorales has added THe KiNG's revised HDEF section for audio. I haven't included video or networking in it, though it does contain vanilla speedstep data for my CPU which you MUST change for your own. See towards the bottom of this post for the download link. Previous News 9th Dec: mm67 shares new DSDT in Gigabyte DSDT Fix thread - with fixes for shutdown and Aluminium keyboards.
30th Nov: Updated Guide to v1.4.01 - Removed the previously suggested SATA fix as it was wrong. 20th Nov: Vanilla Intel Speedstep - I have posted a to aid in your following of FormerlyKnownAs' thread. BTW: I no longer use fakesmc.kext nor any other related kext (never mind asking how because I won't get sacked over this – my employer has a good relationship with Apple). One ongoing thread I would recommend looking at to see the possibilities of DSDT (and it's complexity) is the where Master Chief has grabbed DSDT by the balls, ripped it apart and shown what he has done to rebuild his DSDT to achieve one which is technically accurate, up to date & clean. And during this process is managing to tweak, fix and evolve compatability of OS X on his hardware to a new level. Building a basic DSDT.aml file for GA-EP45-DS3L There is a wealth of information here on Insanely regarding DSDT from what it is, how to use it, how to make files and a whole host of Q&A's.
This thread takes from those guides the information we need to build a basic DSDT for the GA-EP45-DS3L. I have only been reading and learning about DSDT since the end of May so I don't really know anything more than I detail here. From what I have been reading recently, it is a complicated subject and the deeper you go, the more you need to get your hands dirty. Therefore, I am only learning this and if you want to know more and I can't help you then it is up to you to read those other threads.
This guide wouldn't have been possible if it wasn't for firstly, all the great individuals at Insanelymac and the OSX86 scene for sharing their time and knowledge and secondly, to thiagomorales and tmongkol for supplying the final pieces of the jigsaw to enable me to put this guide for the GA-EP45-DS3L together. What can actually be achieved using DSDT with the GA-EP45-DS3L? This is something that I had to question because if I could use a DSDT.aml for a fully functioning system without any other kexts etc. Then this would be the definitive path.
Unfortunately though, with my limited knowledge, it's not the case as I still have to add various kexts to Chameleon's /Extra folder. But the Gigabyte boards have proved to be very compatible with OS X and some of the DSDT patching required is minimal compared to some of the other motherboards out there. But there are extra things you can do with DSDT that can't be done any other way i.e. Changing how OS X sees your EHCI (high speed) USB ports from expansions slots to built-in.
This has the benefit of helping with sleep and some USB ports not being ejected improperly when waking from sleep. The USB fix came from a by ApexDE from excellent DSDT thread. The SATA fix also came from a by ApexDE from thread. (Removed because it was the wrong thing to do for this motherboard). I am sure, in time, a lot more can be achieved with DSDT for this motherboard.
But for that to happen, a deeper look in to DSDT for this mobo is required and that will take expertise, patience and time. Main Benefits: Improved Audio (in combination with LegacyHDA kext), giving an option to enable sleep in 10.5.8 by allowing the removal of Disabler.kext if desired, and to fix the - needed for 10.6 DSDT audio, with a new LegacyHDA.kext (thanks tmongkol) provides better functionality and doesn't suffer from any problems when awaking from sleep.
Gigabyte Ga Ep45 Ds3l Specs
Previously for this mobo I used VoodooHDA which didn't behave very well when waking from sleep and there were complaints with the microphone inputs not working. DSDT audio gives me these options in the System Preferences Sound. 10.5.8 and 10.6 sleep can work using DSDT by removing any PowerManagement disabler (i.e. SleepEnabler.kext / Disbaler.kext /NullCPUPowerManagement.kext) and letting AppleIntelCPUPowerManagement run.
Note: CPU temps are generally noted to run around 10 degrees hotter doing this. A Combined EFI string for ethernet and video which would normally be placed in the com.apple.Boot.plist can be set in DSDT and therefore removed from com.apple.Boot.plist. But is this really any great gain? Mm67 worked out how to change the DSDT code to allow our machines to shutdown without the use of OpenHaltRestart.kext in /Extra/Extensions. Duvel300 found a way to allow our machines to restart by modifying the bootloader code, so Chameleon RC5 (pre-release) or Asere's modified RC4 bootloader will work.
An issue with Bonjour networking, which I solved in my Vanilla 10.5.8 retail build by adding Psystar's RealtekR1000.kext and it's dependencies to /Extra/Extensions, still exists with DSDT networking and they still need to be added. For 10.6 I use the ifconfig command to set the ethernet adapter in to promiscuous mode rather than a Realtek networking kext. If I use DSDT to achieve the same functionality as my 10.5.7 Vanilla retail install, I can only remove VoodooHDA.kext, OSvKernDSPLib.kext, IOAudioFamily.kext and Disabler.kext (provided I don't have an 8800GT) from /Extra/Extensions and edit out the EFI strings from the device-properties in com.apple.Boot.plist.
As I am still learning about DSDT I will continue in the hope that I can tweak this further and reduce the need for any more of these kexts in /Extra/Extensions. So I welcome anybody who wants to experiment and help achieve better results.
'Don't be afraid to experiment and don't expect to get it right the first time. Try different things and see what works better on your hardware.' A quote from Beerkex'd (original statement ). What is needed to complete this guide?.
A currently running OS X retail install. to find where your hardware is and to get the necessary info.
You'll need a copy of the BIOS file which you are currently using. Access to any Windows install, it doesn't have to be on the hardware your hack is running on. A VM will work. I used Patcher02Beta5. from tmongkol. This also includes tmongkol's gude for patching DSDT by hand, very useful.
You might require more than one attempt to achieve a fully working system using DSDT. And to actually use the DSDT file you will need an OS X retail install which uses a bootloader that supports DSDT override. My or guides are ideal. There are a few of ways to generate a DSDT.aml file but here I'm going to show you one way, and that's using Koalala's ACPIpatcher which is a Windows application. An alternative application for OS X is.
Tips. When adding video to DSDT, some people have had success ticking PEGP even though PEGP doesn't show in IORegistryExplorer.
But I have lately taken my video out of DSDT and been using the new features of the Chameleon bootloader (also Netkas' fork; PC EFI), where I can inject the device properties for my video card in to the system at boot. Notes If you are using this guide to build a DSDT so you can get your 10.6 system up and running, a good way to verify it works is by using it on your existing 10.5.X system first. This guide includes the CMOS Reset Fix and I recommend having this BEFORE installing 10.6 Files As of 28th September 07:56 - The Building DSDT Guide PDF has been donwloaded 5,716 times v1.4.01 (1.69MB) Last updated 29th November 2009 - 10:40 FileFactory What's Changed? - Removed the SATA fix as it was wrong. Original Gigabyte DSDT extracted from BIOS F11c using acpidump in Linux DSDT'S LATEST - Credit to mm67 for this DSDT. Last updated 17th January 2009 - 20:27 This is a new style DSDT based on mm67's work. It's a smaller, cleaner DSDT which fixes a lot of the bugs supplied in the original Gigabyte DSDT and leaves in the bits relevant for OS X.
I have tweaked it to work with the GA-EP45-DS3L. It doesn't contain any video. It doesn't contain any information for PS2 device support.
So you need USB keyboard & mouse. Some useful stuff - A DSDT Editor which might be useful although I don't really use it. Read Master Chief's Exceptional work with DSDT. This post was last edited by blackosx on 10th March 2010 - 07:32. What is the 'original' version of AppleHDA.kext (in /SL/E) - I am not sure if I have the correct = unpached one.during all my tests. (can I extract it from the original OSX DVD?
Or do I have to go thru a new installation?) I have attached the original version of AppleHDA from my /S/L/E folder here for you to put in to your /S/L/E folder. Hope that helps you.
Do you have another backup install? As with my vanilla retail 10.5.7 install guide we created a backup partition for installing another fresh copy of OS X. I always find that useful for testing or for recovery if needed. BTW: The data which the IORegistryExplorer gave to me where different to yours (in your guide) - ethernet (Realtek card) not in PEX - no PEGP for my 8800GTS This is interesting. I would have thought as we both have the same motherboard, BIOS version and install that the information in IORegistryExplorer would be the same, just maybe in a slightly different order. But, thanks for letting me know that it is different, that's something new I have learned here. As I said in my opening comments, I am new to this too It looks like I am going to have to revise my guide with this new information.
It's only by others trying this out, like you gh, that this guide can accurately mature. So thanks again for attempting this process. I have seen that your DSDT does not contain the CMOS-reset-fix: My CMOS gets corrupted after a shutdown without that fix. AppleEFIRuntime.kext causes the CMOS corruption, but that kext is needed for proper Firewire I/O too.
Thanks ApexDE, I will have a look in to that. I am still learning about DSDT so anything like this is all new.
I have only learnt from the options that koalala's ACPIPatcher has shown me and although I know I can manually edit my DSDT.dsl, I don't really know what else there is to add and I haven't had time to go hunting. Is this a bug on temp monitor or it literally runs hotter? If you disable or delete AppleIntelCPUPowerManagement kext, the processor runs cooler but you got no sleep on 10.5.8. Me wants a cooler proc and sleep hope someone can fix this. Have a look at - start at post 70 (roisoft) - (my current DSDT.dsl is on the last post) And I've struggled with this (if the voodoo guys already had a powermanagment kext with c-state I probably wouldn't have bothered.) but it's been an education! I currently have vanilla speedsteping and no intelCPUpowerman' error messages but haven't cracked c-states yet.
CPU temps are normal. Managed to update to 10.5.8 last night without AppleintelCPUPM disabler with no issues. LOL - I'm still getting to grips with it myself, I think a comprehensive & coherent guide is a while off. Have you tried the Voodoopower kext - worked OTB for me. It will give you speedstep so should keep the temps down. You can get a ruff guide on CPU voltage and frequency with or D yes im using it right now temp turns down a bit but it's still higher by maybe 7-10C, my problem is if i load AppleIntelCPUPowerManagement.kext i get sleep but higher temp, if i disable it or delete it i have lower temp but no sleep. BTW this is on 10.5.8, no prob before that.
Not a life and death issue though, im much more interested getting my rig sleep in snow rather than leo but thats another topic im sure it will get sorted in the coming days. Yes im using it right now temp turns down a bit but it's still higher by maybe 7-10C, my problem is if i load AppleIntelCPUPowerManagement.kext i get sleep but higher temp, if i disable it or delete it i have lower temp but no sleep. I have been using to monitor my CPU temps. My CPU when running AppleIntelCPUPowerManagement is reported at 49-50 degrees C most of the time. But I don't know how accurate it is. I have read that if I set an alarm in the BIOS to sound when it reaches say 40 degrees C then monitor the reading from Temperature monitor then when the alarm sounds I can check to see how accurate it is.
But I haven't got round to it yet.