---------- Original message ---------- Subject: Re: ----------- erratic g4 mdd powering on and sleep problems Date: Thursday, 10. January 2013 From: Bruce Johnson <[email protected]> To: [email protected] > Nearly dead PRAM batteries can cause all sorts of issues with G4 towers; > I'd look there first, particularly if it's intermittent.
I’ve worked with a couple of Power Macs G3 B&W up to G5’s, and also with a Power Mac G4 MDD. It *always* worked without a PRAM battery. It sometimes *did not* work with an old PRAM battery that needed replacement. So: I would see what it does without a PRAM battery. Remove it. Disconnect the AC. Wait a few minutes. Power it on, holding Cmd-Opt-P-R. See what it does. > However the failure mode you're describing is very similar to failing power > supplies in Quicksilver models; I believe the PS in the MDD is different, > but if swapping in a new PRAM battery doesn't fix it, I'd look to > replacing the PS. Also a good guess. Cheers, Andreas aka Mac User #330250 -- 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 [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
