the new one never got oc'd. I tried lowering voltages and clocks carefully but it just keep showing this artifacts, I think that my psu can't hold the entire system with oc, that's because I'm saying that it can be the psu. But it can the motherboard because it's an relatively cheap one and/or it's dying because the psu couldn't supply the energy for the test.
Well the oc wasn't big deal really it was a 3,4ghz on cpu 850/1100 on gpu I did thest it with prime95, msi afterburner and atitool for scanning artifacts withouth problems over a month until I did test it with aida64 burn in test and msi together
I managed to get an old am2 board with an athlon 64 from a friend to test it but not until saturday .
Thank's 4 your reply.