It most certainly sounds to me like it's the Hard Drive going bad... I've had, out of all the Apples I have owned and worked on only 2 Clamshells do this (one of them I bought brand new and Apple Care replaced it) and in both the HD was the issue... My Apple use goes back to 1996...
-----Original Message----- >From: lrbarrios <lrbarr...@datastarusa.com> >Sent: Nov 9, 2010 2:10 AM >To: G-Group <g3-5-list@googlegroups.com> >Subject: PowerMac G3 AIO 'snapping/popping' > >I just purchased a PowerMac G3 All-In-One from a flee market for $5. >I was told that it works, so what the heck. As long as my wife >doesn't find out, I'm okay. :) > >I powered it up tonight and it's making a 'snapping/popping' sound >from under the hood -- like a bug zapper. When this happens, the CRT >display also flashes. At first I just thought it might be dust. I >can actually boot an OS 9.2 CD, but shortly afterwards, the machine >will start snapping and popping and reboot itself. Eventually, after >it gets warmed up, it's almost continually popping and interrupting >the boot process. I know this can't be good for it, so I've turned it >off until I can get some answers. Is it the power supply? > >-- >You received this message because you are a member of G-Group, a group for >those using G3, G4, and G5 desktop Macs - with a particular focus on Power >Macs. >The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette >guide is at http://www.lowendmac.com/lists/netiquette.shtml >To post to this group, send email to g3-5-list@googlegroups.com >For more options, visit this group at http://groups.google.com/group/g3-5-list Scars only tell us where we have been, they do not have to dictate where we are going... -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list