A ECS modeled P4VMM2 mobo here with an P4 1.7GHz chaginging from 384MB PC133 SDRAM to 384MB DDRAM PC2100 and PC266 sticks . The output was unstable and it cant even bootup anymore. I already change its many jumpers to their corresponding configurations by following the mobo's manual pero mao gihapon ang output, dili ka boot up og sometimes mo boot up pero kotob ra after sa windows xp loading nga interface then itom dayon ang screen. I checked the ddr modules by isolating it to another pc pero okay man, nag work man siya finely. I reseted also the CMOS jumpers hoping that its only a conflict in hardware memory pero mao gihapon ang output, no improvement. Gi checked pod nako ang mga capasitors sa akong mobo pero I didnt find any bulky or bulged one. But when I put back the sdr modules kay okay man siya, kung e ddr lang siya madaot. Sayangan dyud ko ani nga mobo kay working good man gud besides from putting a ddr mem on it. Unsa kaha ang cause ani? Any solution?