RickNel
Veteran Member
I have a machine that won't boot from overnight full power-off, but gradually goes further in the boot sequence for every hour that it is plugged into AC mains. Boots fully after about 5 hours on standby. Once booted, runs perfectly.
Standby draws a steady 5-6watts.
On another G3 iMac I've previously done a complete replacement of electrolytic caps on the Power-Analog-Video board (PAV) - around 30 through-hole caps up to 560uf.
I would prefer to identify which specific cap(s) could be causing this behaviour. Could the 5watt trickle current really be charging up some of the larger filter caps, given enough time? I thought the trickle current only feeds the start-up logic and switching control, which to my mind does not explain this slow conditioning effect. I've never seen behaviour like this in a PC-style PSU.
Rick
Standby draws a steady 5-6watts.
On another G3 iMac I've previously done a complete replacement of electrolytic caps on the Power-Analog-Video board (PAV) - around 30 through-hole caps up to 560uf.
I would prefer to identify which specific cap(s) could be causing this behaviour. Could the 5watt trickle current really be charging up some of the larger filter caps, given enough time? I thought the trickle current only feeds the start-up logic and switching control, which to my mind does not explain this slow conditioning effect. I've never seen behaviour like this in a PC-style PSU.
Rick