jerky mouse & stuttering audio with redrocket.kext installed

[r.schroeder]

Hello all,

Building a system that works flawlessly, except when a Red Rocket is installed - more specifically, the hardware can be installed, but only when the kext is loaded (redrocket.kext) does the system starting getting stuttery. Mouse/window movement is jumpy, and audio skips around, regardless of what interface is tried - I've tried built-in, external USB, and the audio out from my Blackmagic Decklink.

Have tried GraphicsEnabler=No, but the system won't get as far as the desktop without it.

Specs:
Asus P9X79 WS w/3101 BIOS (voodootscsync.kext loaded in /E/E to avoid having to boot with cpus=1 on this BIOS, which board came pre-loaded with)
64GB (8x8GB) RAM
3930k processor (tried at stock speed, but normally running at 4.2GHz)
2x EVGA 3GB GTX580 Classified
1x Decklink Extreme
1x Red Rocket
1x PCIe FW800/FW400 expansion card

boot.plist is as follows:

<key>EthernetBuiltIn</key>
<string>Yes</string>
<key>GraphicsEnabler</key>
<string>Yes</string>
<key>Kernel</key>
<string>mach_kernel</string>
<key>Kernel Flags</key>
<string>PCIRootUID=0 npci=0x2000 darkwake=0</string>
<key>Legacy Logo</key>
<string>Yes</string>
<key>Timeout</key>
<string>2</string>
<key>Quiet Boot</key>
<string>Yes</string>

smbios.plist as follows:

<key>SMfamily</key>
<string>MacPro</string>
<key>SMproductname</key>
<string>MacPro5,1</string>
<key>SMcputype</key>
<string>1281</string>
<key>SMboardproduct</key>
<string>Mac-F221BEC8</string>
<key>SMserial</key>
<string>xxxxxxxxxxx</string>
<key>SMbiosversion</key>
<string>MultiBeast.tonymacx86.com</string>

Any thoughts?

 

[mfan342]

Have absolutely the same problem.

MB Asus P9X79 with "old-style" bios 1xxx
CPU 3930K
Graphics Radeon 6870, tried GTX 670

Tried to change slots, tried 10.6.8, 10.7 and 10.8 versions
Nothing

Finally delete appleupstreamclient.kext from SLE
This helped me, but after several reboots it can return.

I have Socket1366 MB Gigabyte X58A-UD3R
There is no such a problem on it, but want to use new one.

If find something please keep me informed

 

[r.schroeder]

I ended up replacing the motherboard with a Gigabyte X79-UD4 - no problems!