On Feb 10, 2011, at 10:37 AM, yawg wrote: > Hi, > > Today I opened my MDD (1.25 GHz 2003 model) and it uses a Samsung PSU, > those PSUs seem to go at once and when they go the home fuse goes > also ... > > All fans are running, the red LED on the mainboard is lit, I get a > bong, then the disks try to initialize but stop after a while. When I > put a CD in the DVD-drive that drive also spins up for a while. > > But my monitors stay dark and the keyboard is not initialized - the > green LED on the capslock key stays dark. That's why I cannot use any > key-combos at startup, no PRAM reset or Alt to change my startup disk, > no shift to do a clean start. The mouse doesn't work either because > the drive should open when I start with the mouse pressed down. I > tried two keyboards. > > One time the fans revved up after the bong for a second then back to > slow. I pulled all flatcables and power supplies to the drives and > reseated them. I have 3 start volumes, two Panther and one Tiger, I > normally run Tiger from a big SATA-drive that I use with a little SATA > to PATA adapter. I already removed the PRAM-battery for quite a while, > tried a new one, pulled all the RAM and cleaned and reseated it. > > So I guess it's not the PSU's fault but what do I know? This is the > first Mac I cannot get to run again after a crash, it's very > frustrating.
Strip it down to basics. One RAM DIMM, one hard drive, only the video card and monitor, no PCI cards, disconnect the optical drive cable, no Ethernet, FW or USB and see what it does. If it still doesn't boot then try changing the RAM and HD. Clark Martin Redwood City, CA, USA Macintosh / Internet Consulting "I'm a designated driver on the Information Super Highway" -- 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
