I recently had a power supply failure. Changed power supply and am now up and running. (an IGT S2000 TRIPLE DOUBLE 3 reel 5 liner) but upon turning it on today..a couple of days after changing the power supply, no boot up happened and all of the leds were on at the CPU. Turned off the machine then turned it on and everything started to work properly. One led was on at the CPU and the game plays fine now. What caused all the leds to lite up and the machine not work. No display so I couldn't read what might have happened. Thanks guys