I know some obout computers but not lots. heres my problem, i just bought 4 gigs of DDR2 PC 5300 ram, to replace my 2 gigs of other stuff. i put all 4 gigs in, my computer screen comes up black (no picture) so i tryed combining the old and new stuff like S1: 1 S2: 512 S3: 1 S4: 512.....and my computer stopped loading at the ASUS screen just before windows loading screen comes up i tryed different combinations and still samething. one combination though of 3 1 gig sticks and 1 512 allowed me to get to the login screen, but after a few seconds it would restart it self, and it kept doing that. what is my problem? (i have an ASUS LGA775 mother board)