Having acquired a G5, I'm in the process of selling my old PowerMac G4 DA. It has an upgrade CPU (OWC Mercury 1,4 GHz), that I'm selling on its own.
Today I took out the upgrade CPU, and I put back in the old, original Apple 667 MHz CPU (I applied thermal grease, connected the CPU fan wire, pressed the PMU switch). Problem is, the Mac doesn't boot anymore. When I press the power button, it doesn't make any sound at all (no boing, no beep), and the screen stays black. Fans are running, the power button is lit, and that's it. The HD doesn't seem to be accessed (no whirring from the drive's heads). One week ago, I used this Mac (with the upgrade CPU still in), and it had no problem. Any idea how to troubleshoot this? Thanks in advance, Valter PS: Just in case, here's the other specs: 1 GB Ram (2 x 512), 1 HD 80GB, GeForce Ti 4600 graphic card, USB2 + FW400 card, SCSI Adaptec 2930 card, Griffin G4Port serial port. MacOS 9.2.2 and 10.4.11 on different partitions. -- 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
