I have an Athlon 600 and before yesterday I had a 235 watts PSU the system kept re-booting its self before it reached Windows 98 se. AMD recomend at least 300 watts PSU....could I have damaged something in the PC by having too little power? I have just changed it for a Antec PP-303X 300 watts PSU and it is still re-booting its self...has the damage already been done! Anyone please I'm stuck and dont know what is happening!!