What causes YLOD?
The usual cause for this light to appear is due to the NEC/Tokin capacitors on the motherboard degrading over time and no longer being able to provide enough power to the CPU or GPU. The YLoD can usually be fixed in older PlayStation 3’s that utilize NEC/Tokin capacitors by replacing them with tantalum capacitors.
What causes PS3 red light of death?
Actually, PS3 red light of death implies that there is a heavy workload on the console at that very moment. It is a warning before the actual error. Tip: PS3 blinking red light is also called RLOD (Red Light of Death). The blinking red light on PS3 might appear when you are playing graphics-intensive games.