Postagem original de: lkvee ,
I have the same problem on my 1.67 GHz PB 15". Changing the RAM around didn't change its behavior. Even powering it up WITHOUT RAM failed to change its behavior. The most interesting behavior came when I tried to reset the PMU - the fans also activated with no image and no chime and no Caps Lock when pressed. I opened up the keyboard and found some interesting crud just below the right fan and to the left of the right speaker: [image|46352|size=thumbnail] [image|46353|size=thumbnail] [image|46351|size=thumbnail] It looks consistent with liquid damage, but the area surrounding that crud looks spotless to me. I used 99% IPA and a q-tip to clean as much as I can. I will probably extract the logic board and examine it for more crud. Stay tuned!