ps3 with yellow light is sumat to do with the fan and the ps3 over heating i had this for about 5 weeks untill sony decided to exchange my ps3 for another ( with a couple of games and extra 12 months warrenty thrown in ) ;-)
mine worked ok when i stood it up but sometimes turned itself off and yellow light
mine was in a cold room and was never on for that long but still yellow light boooooooooooooooooooo
well things are all good now sooooooooo on with the gameplay