Computer Extremly Slow after installation - GA-X79-UD3

[deffe]

Hi everyone. I just managed to get a full installation of Maverick to complete combined with this hardware

1. GA-X79-UD3
2. 4820K
3. 16GB RAM
4. Radeon 5870 * 2 (two cards)
5. I also have the ability to switch to one GTX760

But the computer is extremely slow, if I move the mouse it takes almost 1 second until the cursor starts to move. Starting a program also takes alot of time. Rendering a window seems to take ages. Its like Im on a 386 or worst.

Do you guys have any suggestions what I could do?

Is this a common problem?

 

[sirretv]

May be your graphics cards that are fighting OSX. Do you have any backup NVIDEA ones that you could try?

 

[Leumas1311]

First of all, wow you got it running! I can't even boot! I just want to know if you had to do anything special to get mavericks to boot with your processor. I have the same one, but different motherboard and video card. When I boot I get the apple logo. That's all, nothing else. Boot flags are useless against it. I am no w trying frantically to get some grasp oh what the problem is and how to fix it. Please help me out!

 

[Shadowmaker01]

Guide on making first boot would be nice. Did you change BIOS, what flags did you use to boot up and what method....

 

[Shadowmaker01]

Use this flags for GA-X79-UD3 rev.1.00 F16:
UseKextCache=Yes npci=0x3000 cpus=1 GraphicsEnabler=No -f

These are the flags that will get you to MACOS installation screen.
Got idea from this guy but its too slow coz of 1 core working.
http://www.tonymacx86.com/mountain-lion-desktop-guides/100560-guide-gigabyte-ga-x79-up4.html

GO ME!!!

 

[Macfirewire]

Hi, I just read your comment.. Did you got the sound ALC898 working?