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  #1  
Old 09-02-2009, 12:23 AM
snifferpro snifferpro is offline
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Join Date: Apr 2009
Posts: 15
Dsdt

I'm getting ready to install Snow Leopard on a new drive on a P5Q3 Deluxe and
I see a lot of posts here that say you have to modify your DSDT.

When I installed Leopard 10.5.6 I do not remember modifying any DSDT file and
I have successfully ugraded to 10.5.7 and then 10.5.8 and the system is extremely
stable. No issues at all.

I consider myself a noob yet so bear with me.

1. Where is the DSDT file on my current system?

2. Can I use a copy of that DSDT to install Snow Leopard?

3. Where is the DSDT file that everyone says you must modify.

4. How do you modify the DSDT?

5. Is there a tutorial on DSDT modification?

6. Is there a DSDT on the Snow Leopard DVD?

7. If there is a DSDT on Snow Leopard, is that the one I have to Modify?

8. Is there a utility to display my current DSDT so I can extract info from there
if I need it?


Be gentle and thanks for assistance.

If you need to move this post to a new section, just let me know
where you move it to.

ASUS P5Q3 Deluxe WIFI@N
Intel core 2 E8500
8gb Gskill dddr3 memory
EVGA 9800GT Graphics card
2 SATA II 500gb hard drives
1 Samsung SATA DVD drives
Mac OS X 10.6.1, Win Vista 64bit, Win 7 64 bit RC
Ubuntu Linux
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  #2  
Old 09-02-2009, 12:50 AM
mormegil mormegil is offline
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Join Date: Aug 2009
Posts: 148
Search for DSDT Patcher by fassl. Just run and it will generate a patched dsdt.aml file which is specific to your hardware. You will need Chameleon PC-EFI9 and above to use it. The reason you've never used it is because your board is very compatible with osx. For example, I couldn't even boot into Leopard without cpus=1 flag. With dsdt override, I don't need it anymore. It also includes other fixes to make pc hardware more compatible with osx. In other words, it is a patch loaded into memory which overrides your hardware settings in bios.

Core2Quad / MSI P45 Neo2-FR / HD4870 / Snow Leopard
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  #3  
Old 09-02-2009, 01:19 AM
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DocShadow DocShadow is offline
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Join Date: May 2009
Location: Ottawa, ON, Canada
Posts: 106
1. You don't have one unless you created one.

2. Yes you could if you had one.

3. Either in root or /Extra

4. Basic patching to use a DSDT patcher .. I prefer DSDT Patcher GUI over DSDT Patcher, which run in terminal program. More specific patching you use iASLme.

5. Search Forums

6. No ... Macs don't need an DSDT

7. -

8. Yes, iASLme will make a file that you can edit.

Gigabyte EX58-UD5 - i7 920 @ 3.2 GHx - eVGA 8800GT
Asus P5Q Deluxe - E8400 @ 3.6 GHz - Asus 7900GT
iMac 2.2 GHz - 4 MB
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  #4  
Old 09-02-2009, 06:37 AM
OG-Phantom's Avatar
OG-Phantom OG-Phantom is offline
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Join Date: Aug 2009
Posts: 64
Quote:
Originally Posted by snifferpro View Post
I'm getting ready to install Snow Leopard on a new drive on a P5Q3 Deluxe and
I see a lot of posts here that say you have to modify your DSDT.

When I installed Leopard 10.5.6 I do not remember modifying any DSDT file and
I have successfully ugraded to 10.5.7 and then 10.5.8 and the system is extremely
stable. No issues at all.

I consider myself a noob yet so bear with me.

1. Where is the DSDT file on my current system?

2. Can I use a copy of that DSDT to install Snow Leopard?

3. Where is the DSDT file that everyone says you must modify.

4. How do you modify the DSDT?

5. Is there a tutorial on DSDT modification?

6. Is there a DSDT on the Snow Leopard DVD?

7. If there is a DSDT on Snow Leopard, is that the one I have to Modify?

8. Is there a utility to display my current DSDT so I can extract info from there
if I need it?


Be gentle and thanks for assistance.

If you need to move this post to a new section, just let me know
where you move it to.
Docshadow hit on all the points, but for clarifaction (FYI if your interested), your DSDT resides in your bios. It controls specific hardware to your motherboard (onboard audio, onboard lan, cpu, usb ports, sata ports, etc). You can use a dsdt patcher to extract the dsdt from your bios (turns it into a file on your harddrive) and from there you can decompile it, modify it, recompile it and use a dsdt aware bootloader to have it "overwrite temporarily" the dsdt in bios with the modified dsdt file you have on your hd. Hope that clarifies what a DSDT is....

[HACK P5K]
ASUS P5K Deluxe/Wifi [ Q9650 / 8GB OCZ / EVGA 8800 GTX ]
Windows Se7en 500GB SATA
OSX 10.6.4 (vanilla-EFI) 500GB SATA
[HACK EP43]
Gigabyte EP43-DS3L [ E6700 / 8GB OCZ / PNY 250 GTS ]
Windows Vista 64bit 250 SATA
OSX 10.6.4 (vanilla-EFI) 160GB SATA

Last edited by OG-Phantom; 09-02-2009 at 06:52 AM.
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  #5  
Old 09-02-2009, 11:35 AM
snifferpro snifferpro is offline
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Join Date: Apr 2009
Posts: 15
Thanks for the replies. I think I understand a little better now what DSDT is all about.

Since I didn't require a dsdt file when installing Leopard I am going to try and install
Snow Leopard without it again. If it works, great! If not I will plunge into DSDT.

Again, Thanks

ASUS P5Q3 Deluxe WIFI@N
Intel core 2 E8500
8gb Gskill dddr3 memory
EVGA 9800GT Graphics card
2 SATA II 500gb hard drives
1 Samsung SATA DVD drives
Mac OS X 10.6.1, Win Vista 64bit, Win 7 64 bit RC
Ubuntu Linux
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  #6  
Old 09-02-2009, 02:01 PM
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Voyn1x Voyn1x is offline
 
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Location: United Kingdom
Posts: 554
http://www.infinitemac.com/f84/a-qui...to-dsdt-t3436/


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