Mac OS X 10.7.3 Lion Sometime Crit

Hello, I'm from Russia. Recently begun to deal with the hackintosh OS. 3-4 days later I picked up kexts and dug at various forums to find the right disk imaging. Finally put my first hack Os, are satisfied. Faced with this problem. Periodically (1-2Hour), the operating system stops and a message appears stating that you must restart the computer, how to fix it?

My Hardware:

Motherboard: EG41UMFT-US2H
RAM: DDR-1066 4GB (Single Chanel)
HDD: 320 WD IDE
Video: GT430 Gigabyte 1GB DDR3 128 Bit (Installed "Fully worked kext from osx86.net")
Audio: ALC888 (Work)

All hardware is worked!

Sorry for my bad English and please help me to fix my crit errors.

http://s16.postimage.org/7hp5ayzyd/120513_201404.jpg
Processor: Q8400 2.66Ghz