text: I discovered a configuration mismatch\nCPU: Intel Celeron M 370 (1.5GHz) 1MB L2, 400MHz FSB\nRAM: 768MB (256 + 512) PC4200 DDR2 533MHz \n\nThe clock frequency of the RAM may not be higher than the clock frequency of the FSB. Every manufacturer of a mainboard with FSB 400MHz would recommend RAM of the types PC2100 or PC2700.\nThis might not be the reason for your hangs/freezes, but the timing of PC4200 DDR RAMs on a 400MHz FSB is critical anyway.