On Dec 4, 2012, at 1:43 PM, jayson skinner <[email protected]> wrote:
> i just bought a used 2004 imac g5 desktop and i dont know what to do. hears > my problem. when i plug the power, keyboard and mouse in and press the power > button the screen will either start up with the chime but stay black. you can > kinda, almost not at all, hear something getting power to it. after about a > minute or so you can hear that the fans have started up and are at full > speed. the mouse will light up but the keyboard wont. idk what to do. i just > bought this from a friends friend that said it just needs an os for it, but > idk but any and all help will be greatly appriciated. thanks The iMac G5's were built at the height of the Great Capacitor Plague <http://en.wikipedia.org/wiki/Capacitor_plague>. >From the symptoms you describe, some of the caps on the mobo are bad. >Basically you need to unsolder a bunch of capacitors on the logic board and >the power supply (since you've got it open) and replace them with new, good >ones. Fans going full blast mean the system hasn't booted up enough to engage the onboard temperature controllers which modulate the fans. Search the archives of this list and the LEM imac list for references to part sets and such. If the problem was just 'needed an OS' then a white screen with a flashing question mark would come up and the fans wouldn't be going full blast. It's unlikely to be a bad LCD because the keyboard would light up and the fans would slow down. -- Bruce Johnson University of Arizona College of Pharmacy Information Technology Group Institutions do not have opinions, merely customs -- 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
