I am having a similar issue after I successfully installed 10.8.5 on my build a few weeks ago -- probably the easiest install I've ever done, with zero problems, but I'm hitting a wall with Mavericks.
I'm running:
- Pentium G3220
- Gigabyte GA-H87N-WIFI
- EVGA GeForce GT 610
Just a low-power cheap setup for HTPC use. Works great with 10.8.5, but when I try to boot with my UniBeast USB drive in verbose mode, I get the same screen as damanddd does.
Before I found this thread, I tried remaking the UniBeast drive from scratch and even used this particular machine as the one to make it on, but so far no dice. Could it be a problem with the USB drive? Or some other internal hardware?
Damanddd, are you trying to install Mavericks on an empty drive, or are you trying to upgrade from a previous install? One thing I haven't tried is installing to a blank drive, but I don't want to lose my setup from the current drive.
For what it's worth, I installed Mavericks on my GA-B75M-D3P / i5 3570K / GTX 650 Ti build with this same USB stick and it was a breeze -- works even better than before.