Broken memory clip, ticking noise

[John]

Hello list, two distinct problems with my PB G4 550:


I hear a ticking coming from the area where my inverter board is. 
Should I be worried? It is like a clock, "tick, tick, tick". It still 
buzzes, but hey, that isn't that big of a deal.


Even though I was very very careful, it appears that over time the 
memory clip on my PB has broken. It looks like the part retaining the 
chip on the right side has worn away. I haven't had any problems 
(crashing, "lost" memory) *yet*, but again, is there anything I can do? 
  I should stress the words "worn away". The plastic clip is as springy 
as it should be, but the part that the chip pushes against vertically 
appears to have sheared off (partially).


I do not plan to upgrade till there is a more compelling PB out there 
(ie, G5), and can wait a few years if need be.


Thanks!!!

John