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RESOLVED! From what I learned, the standby frequency for the chip is 1.2 GHz. In other words it appears it wasn't getting out of standby mode. I decided to try and update the BIOS to F7 (I had nothing to lose). And it solved the problem! The Linux system tests now show 3.4 GHz. I'll install Mav...

Yes, I agree. I was hesitant to do that at first and only took the plunge as a last resort. I had nothing to lose and it worked out. For others in a similar situation I'd recommend proceed with caution. Anyway, my system is running well now. Whew! I was worried that I'd have to fork out more...

Just in case anyone else is having similar problems here's an update. I had the thought to update the BIOS from F5 to F7. It seems to be an improvement as the benchmark speeds are now showing 3.7 GHz. I'll do more testing, but this is encouraging. :thumbup: So it looks like the hardware was...

I had to load Linux to see what is going on with this box. I ran some test and it seems the CPU is only running at 1.2 GHz for some reason. Looks as if it's a hardware problem.

I had to load Linux to see what is going on with this box. I ran some test and it seems the CPU is only running at 1.2 GHz for some reason. Looks as if it's a hardware problem.

I'm hoping someone with more brains than I have can answer this question. I've built a CustoMac but the machine is running abnormally slow. I ran some benchmark tests just to see, but first here are the specs: CPU: Intel i7-4930K (6 core) with Corsair H60 cooler Mother Board: GA-X79-UP4 BIOS F5...

That's a great idea. I'm redoing everything from scratch, and will run Chimera 3.0 when I get it to that point. From what I've read it just might be what I need. I hope anyway. Thanks.

Another good suggestion, but again no change. I'm going to clear the CMOS, reset the BIOS, check every HW connection, and start from scratch. Maybe I missed something along the way.

You're right afuera, I should be more patient. I assumed it would be easier than it has been, especially since I purchased the recommended HW (except graphics card) and followed the installation guide step-by-step. And when I couldn't install Mavericks I found your post, which got me over that...

Good suggestion, but makes no difference YES or NO. Could there be a hardware issue? The BIOS shows that the CPU and RAM are good, or at least they're recognized and running at the correct speeds. Can't find any BIOS settings for the graphics card. I would think the driver comes from the OS...

Update: Tried to see if there is a hardware problem. I swapped out the 500 GB SSD for a spare 320 GB HDD. I reformatted, and reinstalled everything. No difference. Still extremely sluggish. I've checked the CPU and RAM in BIOS. They seem fine. I've reinstalled Mavericks several times. Redid...

I copied your chameleon.boot.plist verbatim (actually I just copied and pasted it). It helped somewhat. Instead of a popup window taking 5 seconds to open, it only takes 3 seconds now. I'm wondering if I have a hardware problem, although the CPU and RAM all check out in BIOS. The "About This...

First of all thanks afuera! My install kept hanging' and couldn't even get to the 10.9 install page on my 6-core i7 until I found your post and the magic formula of -v npci=0x3000 cpus=1 -f It worked! and got me where I needed... along with a lot of patience, like 30-40 minutes just to begin...

Thanks for the quick reply. I followed this guide initially: http://www.tonymacx86.com/374-unibeast-install-os-x-mavericks-any-supported-intel-based-pc.html Then this guide was helpful (got me to install Mavericks)...

Greetings, This is my first time building a custom Mac and I was pretty excited about it. I followed the April 2014 build guide with one exception and I'm wondering if that exception is causing me grief with Mavericks installation. Here's the build: Gigabyte GA-X79-UP4 motherboard Intel...