ATI 6xxx performance after suspend and wake decreases. solved

[luisomac]

Hi everybody,

I upgrade my graphics card to a sapphire 6850 two months ago, and I realized that every time that my hack went to supend and wake, the graphic performance decreased in half.

Cinebench after power on 32 fps. After supend and wake, 14 fps.

I found out that my SMC definition was powermac 3,1. This hackintosh thing is so good that even the bugs work the same as in a real mac pro.

Solution for me was to change the smc definition to imac 11,3. Cinebench stays at 32 fps everytime.

cheers,
Luis

 

[haysphere]

I'm experiencing the exact same problem could you describe how you fixed it with a little step by step guide ?
(I have i7-3770k, GA-Z77X-UD5H, HD6870)

Thank you very much !

EDIT : Nevermind, done it with ChampList.

In case wonders how to do it :
- download champlist (google it)
- go to smbios in champlist
- select the model you want (I chose imac 12,2)
- Save

 

[luisomac]

Cool. didn't know about champlist. I use "Chameleon Wizard".

With Chameleon Wizard,

- download (google)
- click on the smbios icon
- click on edit
- select the imac model more adequate for your hardware (my case was 1156 imac model).

I'm experiencing the exact same problem could you describe how you fixed it with a little step by step guide ?
(I have i7-3770k, GA-Z77X-UD5H, HD6870)

Thank you very much !

EDIT : Nevermind, done it with ChampList.

In case wonders how to do it :
- download champlist (google it)
- go to smbios in champlist
- select the model you want (I chose imac 12,2)
- Save

 

[jamdox]

I have no idea what champlist did, but now my system keeps rebooting! Like in 10.7.3 before bridgehelper...

Where does champlist save? That program has NO documentation!

 

[jamdox]

Wow, that was scary. Apparently the OS does NOT like a MacPro 5,1 system definition!

 

[DaviDemon]

Well, technically you should be choosing the SMBios that matches closely to your system. Not just choosing any one of them willy nilly. Hahaha

 

[jamdox]

So I guess that would be one of the new Macbook Pros... would that cause a problem with the graphics card?

 

[lump]

X58A-UD3R 2.0, 6870 Graphics card, I7 960

I have this issue & haven't been able to resolve it, everything was fine with lion 10.7.3 but ever since I installed Mountain Lion on a different hard drive my system is sluggish after sleep, even did a clean install of Mountain lion on a new SSD & had the same problem there. Currently I have MacPro3,1 in SMBios.plist but I am not sure what other definitions I should try...any suggestions?