NVidia GTX 260 black screen and glitches

[danielepach]

hi everyone! I have a big problem with my videocard since I've updated my hackintosh to Snow leopard 10.6.8(64 bit). Up to 10.6.6(32 bit) my pc has never had a problem.

Problems with my Nvidia card have started when I've update to 10.6.8.

My video card is a Gainward GTX260 896MB Golden Sample

My leopard randomly freezes and black bands appear on the screen ( See Image below) , so I must to force restart of my PC.

Sometimes several glitches appear on the screen ( See Image below).

 

 

I've tried a lot of methods to solve these problems but I've never succeded.

 

I've tried:

-only GraphicsEnabler set to Yes.

-only Nvenabler

-only Efi strings

-I have installed Nvidia drivers for 10.6.8

-I've installed Cuda Drivers.

-Put video card id on nvidia kext.

-I've repaired permissions.

 

My actual configuration:

-GPU Driver Version: 1.6.37.0 (256.02.25f01)

-CUDA Driver Version: 4.0.50

-Graphics accelleration seems to work( front row works, there are effects in dashboard and my top bar is trasparent)

-Efi strings ( I've generated it with the rom file created with GPU-Z. And then I used NVCAP maker.)

-My com.apple.boot.plist is:

<key>EthernetBuiltIn</key>

<string>Yes</string>

<key>Kernel</key>

<string>legacy_kernel</string>

<key>Kernel Flags</key>

<string>-force64 arch=i386 -v cpus=3</string>

<key>Theme</key>

<string>Default</string>

<key>Timeout</key>

<string>5</string>

<key>device-properties</key>

<string>6c0200000100000001000000600200000d00000002010c00d041030a

000000000101060000020101060000007fff04001e00000072006f006d002d0072

00650076006900730069006f006e0000002e0000006e5669646961204765466f72

63652047545820323630204f70656e474c20456e67696e65205b4546495d220000

00400030002c006400650076006900630065005f00740079007000650000000b00

0000646973706c6179100000004e00560043004100500000001800000004000000

000007000800000000000007000000000e0000006e0061006d00650000000b0000

00646973706c617914000000400030002c006e0061006d0065000000120000004e

5644412c446973706c61792d41100000006d006f00640065006c0000001a0000006

e5669646961204765466f72636520475458203236300e0000004e00560050004d00

000020000000010000000000000000000000000000000000000000000000000000

0014000000400031002c006e0061006d0065000000120000004e5644412c446973

706c61792d4220000000400031002c0063006f006d00700061007400690062006c0

0650000000e0000004e5644412c4e564d6163220000005600520041004d002c0074

006f00740061006c00730069007a006500000008000000000000382000000040003

0002c0063006f006d00700061007400690062006c00650000000e0000004e5644412

c4e564d616322000000400031002c006400650076006900630065005f0074007900

7000650000000b000000646973706c61791c0000006400650076006900630065005

f00740079007000650000000f0000004e5644412c506172656e74</string>

 

 

Can someone help me???

[kitmac]

Make sure your Power supply has enough juice to push your card.

I have an MSI gtx 260 OC and i have to underclock in winblows just to run games because my PS is only 500W.

[danielepach]

Make sure your Power supply has enough juice to push your card.

I have an MSI gtx 260 OC and i have to underclock in winblows just to run games because my PS is only 500W.

 

I have a 550W power on my Pc. But Under windows my video card was always perfect! I could play all videogames with my nvidia in Windows.

I've also observed that my video card often crashes when I'm seeing youtube videos.

[Hackintosh2000]

I don't know what to tell you. I have an Nvidia GTCX 260 896 MB and it runs fine with GraphicsEnabler=Yes. It works on every version of SL and Lion since 10.6.3 Retail. Frankly I found it to be the most trouble free graphics card bar none. I keep my fingers crossed waiting for the day Cupertino rains on my parade. Sorry for your woes.

[CJamesC]

All I did to get full QE/CI with my NVidia GTX 260 was add GraphicsEnabler=Yes as a boot flag.