Possibly an overheating issue. Boot into the BIOS and check your temperatures and voltages.
That wasn't a bad plan per se, but there are cheaper power supplies that you can trust just as much as the Silverstone that would have left you with enough budget to buy a better motherboard.The Power supply is a Siverstone SST-ST50EF, I sacrificed on the mother board quality To get a cool case and power supply, I really didn't think that was the problem, but since nothing is for sure I did check anyways, and got the problem continued. So the only thing left was indeed the motherboard. Yes, my low quality Motherboard was the problem.
So today I bought myself Gigabyte P35C-DS3R and the problem was fixed. But now I have to (begrudgingly) eventually upgrade to SATA hard drives. But thanks for all your help. Now I have new issues with getting the dual monitor function to work. Thanks for your suggestions.