No second light, is it referring to PSU failure?
No chime sound and no image on my 2010 21.5" iMac desktop, removed display, get it connected with power, the first light is on and stayed on, turn the machine on, fan started running, but the second light remains off all the time. In this case, should I conclude the PSU is failing and needs to be replaced? Any thoughts? Thanks.
Ist dies eine gute Frage?