Hi i picked up a SE/30 on ebay it runs great now.. has 8 megs ram and a 340 meg drive i think, anyways i was having boot problems weird sounds coming out of the speaker, irregular boots and crashing. so i took it apart and noticed some leaky caps, i think took a fine nylon brush and clean up the board and crusty electro lite off it and have had no problems so far, i really like this mac and want to keep it around for a long time.