I'd agree if this was a Slotloader, but it isn't. M4984 is a Trayloader partnumber, and the Slotloaders also don't have combo green/orange LEDs in the power button, they are white. The Trayloaders are a significantly different design that lack the DC to DC converter board. This sounds like a flyback issue, which is very common on the Trayloaders. A replacement from HR Diemen, partnumber HR46176, is still available from some sources, and I would suggest anyone with Trayloaders to buy them while they're still available. I certainly stocked up with six of them, as I plan to complete my iMac G3 Trayloader collection (Bondi + the five Fruits).