Further info for diagnostic purposes. I ran the unit without the metal cover on (but left the lucite flow panel in place). I can "manipulate" the on - off of the fans by removing the lucite panel (and replacing it) while the unit is on - this I can do within a 2' window - after that the fans come on full tilt, leaving me with a hard shutdown as an only option for turning them off. Hope this helps. Thanks, Dana
On Sunday, September 16, 2012 7:46:07 PM UTC-4, DLC wrote: > > Greetings all, > I'd like to seek advice for those who've tread down the path I need to > take. A while back I donated a G5 tower (June 2004 model, 1.8GHz DP w/ PCI > slots) to a small private school. Recently I was told by the teacher that > it just stopped working, so I took it in and ascertained that the video > card was the most likely culprit (issue= boot up chime, then > nothing-nothing fires up, except the fans going full tilt if you wait a > couple minutes, then you need to do a hard shutdown). Apparently not, as a > replacement card (known good) and a 2nd used one I had failed to remedy the > situation. Re-seating RAM, pulling 3rd party cards, new PRAM battery, > returning unit to OEM status, and resetting the board all proved fruitless. > > So, I'm inquiring from those in the know what the next step is. Alas, all > keystroke related remedies (resetting PRAM, NVRAM, single user and verbose > mode, C key for optical, etc.) are not an option - the boot-up mode does > not get far enough in to query the peripherals or seek an OS. > I fear it may be bad processor or logic board, but maybe there's a way to > verify or get around? > > Many thanks for any input. > Regards, > Dana > -- 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
