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Article: OS X 10.8.3 Update I'm getting this too. It looks to be related to Ivy Bridge graphics, but it happens with and without HD4000 disabled. I have an i7-3770k, ASUS sabertooth Z77, and EVGA 670.... Anyone else experiencing this or know how to fix it? BTW, I used the combo...

There isn't really a fix for this, but there is a "workaround". See here: http://www.tonymacx86.com/graphics/85443-underscan-boot-screen-help.html

The files are attached. As far as I know, the "boot" file can only be used on Mac OS X 10.8.2. I believe Apple changes the file with each release. Also, make sure you make a backup of your original boot file, just in case. You have been warned. Once extracted, the boot file is a hidden file...

I'll upload them tonight after I get home

You can check it out here: http://www.youtube.com/watch?v=A410IpOH1PY

I also have a GTX 670 and am experiencing the same issue on my Samsung Syncmaster display. I tried all the tricks - modifying the chameleon .plist, etc. I know the card supports 1080p VESA resolution, as I get NO underscan when using my HDTV as my primary display. It has something to do with the...

Awesome! I've been looking for this for a while. Thanks!

Is this the stock AppleIntelCPUPowerManagement.kext from 10.8 GM with the AICPMPatch.pl applied? Or is it an older AppleIntelCPUPowerManagement.kext? I tried patching the 10.8 GM AppleIntelCPUPowerManagement.kext with AICPMPatch.pl a while back and was unable to boot. I ended up having to revert...

I noticed that... I didn't see the replies before they disappeared. Did someone talk about mountain lion? (not allowed i believe). Anyhow, if the replies were about getting the front USB 3.0 header ports to work, please PM me :)

How did you guys get your front case header USB 3.0 ports to be recognized? My 2 front USB 2.0 ports work, but my 2 front USB 3.0 ports aren't recognized by OS X. Both sets of rear USB 3.0 ports work (4 total ports). I followed this guide exactly. This is the last thing for me to figure out...

Re: [Working] ASUS Sabertooth Z77 + i7-3770 Are you guys' front USB 3.0 ports (USB 3.0 header) working? My rear ports work, but my front panel ports don't seem to be recognized.

Re: [Working] ASUS Sabertooth Z77 + i7-3770 I'm using NullCPUPowerManagement.kext and sleep/wake does not work. Have to hard reset if I put it to sleep, else it stays as a black screen. The Geforce 670 is working great using the drivers from the newest MBP update. I'm not sure about iCloud...

Re: [Working] ASUS Sabertooth Z77 + i7-3770 I used the guide that you posted on the first page. Ran BH5.0 targeting my 10.7.4 Unibeast USB. Installed with the USB. Then booted back into Unibeast and did: rm /Volumes/USB/mach_kernel cp /Volumes/USB/mach_kernel /Volumes/Lion/ 10.7.4 booted...

Changing my smbios to a MacPro5,1 fixed the issue I was having with youtube. I previously had my smbios set as iMac12,2. Strange - I didn't think smbios mattered

Re: [Working] ASUS Sabertooth Z77 + i7-3770 The issue ended up being that I was using BridgeHelper 5.0 on a Lion 10.7.0 Unibeast USB. I now know that BridgeHelper 5.0 is not compatible with 10.7.0; none of my disk drives were recognized by Disk Utility within the installer. I tried BridgeHelper...

Re: [Working] ASUS Sabertooth Z77 + i7-3770 I have the same motherboard and CPU (and a EVGA Geforce 670 GTX), but am unable to get lion to recognize my hard drives when trying to install with Unibeast. I've made sure my BIOS settings are correct: SATA in AHCI mode Made sure Intel Rapid Storage...