Though I agree with the cry to recap, especially on a machine over 20 years old, I would have to say to take a step back a bit.
Yes, recap the mother board, that is needed and may improve things for the PSU. But check if the PSU is working first. That link I sent says how to check for the trickle charge for the machine to turn on when you press the power button. If that trickle charge is not there, fixing it with a couple of diodes. Then replace the caps of the PSU if that fails.
Recapping the PSU will be needed eventually. Like Techknight said, PSUs are recapped all the time - the LC PSUs needing it the most. The job is not that hard. I've recapped a couple LC PSUs myself. But lets make sure that the PSU is working first. From the sounds of it, the clicking of the relay inside, it does. Check for that trickle charge first.
Yes, recap the mother board, that is needed and may improve things for the PSU. But check if the PSU is working first. That link I sent says how to check for the trickle charge for the machine to turn on when you press the power button. If that trickle charge is not there, fixing it with a couple of diodes. Then replace the caps of the PSU if that fails.
Recapping the PSU will be needed eventually. Like Techknight said, PSUs are recapped all the time - the LC PSUs needing it the most. The job is not that hard. I've recapped a couple LC PSUs myself. But lets make sure that the PSU is working first. From the sounds of it, the clicking of the relay inside, it does. Check for that trickle charge first.