Sorry for not writing before, but had many work to do during the last weeks. I tested the ram sticks as mentioned above, but no errors were presented. First, tested stick#1 in dimm slot A for 10 passes and no errors reported. Second, took out stick#1 from slot A and placed stick#2 for 10 passes, also no errors presented. Third, took stick#2 and placed it in dimm slot B (its original position), went for 10 passes and no errors presented. Now am confused because it appears that both motherboard and ram sticks are working fine, so what's the cause of those BSOD. I like to hear opinions about the situation.
Any recommedations are welcomed.