Arrite fellas, ive been spent loads of hours trying to sort this out myself, searching on the internet. but now i have given up and need help. Currently i have asrock k8nf4g as my motherboard, amd sempron 3000+ processor, ddr sdram 1gb pc3200 400mhz. Yesterday I overclocked my cpu from 1.81 to 2.3 with stability and an low temperature. 512 mb ddr sdram 400mhz pc3200. which was automatically set at 333mhz pc2700. today i upgraded 512 elixir to kingston 1gb. now problem number 1 :: 1gb 400mhz pc3200, but my motherboard shows it as 2700 333 with automatic detection. If i change it to 3200 400 manually the system keeps crashing and by crashing i mean never boots up. problem number 2 :: if i dont change the sdram settings back to automatic i.e. (pc 2700 333mhz) it still doesnt boot up unless i decrease the clock speed to around 2.2 ghz. so now i have set everything back to automatic i.e. 1.81 ghz and 1gb pc2700 333mhz. can anybody tell me why this thing is happening, is it because i upgraded my ram. plzzzzzzz help!!