Hi, I had my PSU repaired (and upgraded as the guy that does it claims that he replaces all the failure-prone parts too and gives a 3-year warranty). Today I put it in my MDD, connected the big black connector to the mainboard, connected two of my startup-disks, monitor, kb and mouse. When I press the power switch on the front, only the LED of the switch is alight and only as long as I press the switch.
Before I removed the PSU and sent it in for repair I still got a bong, the red LED on the mainboard was lit and the disks at least tried to start ... So now either my mobo, CPU or both are bad? I'm very sad :-( Anybody has one last suggestion? I have very little money and know nobody with a second MDD that I could abuse ... Best regards, Jórg. On 14 feb, 09:49, theleaddog <tr...@yahoo.com> wrote: > > [Presses start button which then glows. > > "Bong" (Power On Self-Test) sounded. > > Message appears on monitor to restart computer. > > On subsequent attempts, start button extinguishes > > when released. POST "bong" not sounding. > > Red light on motherboard remains lit.] > > Had the same problem. Replaced the Front Panel Board (FPB), aka power > switch, *and* the Power Supply. Didn't help. Motherboard looked like > new -- no burn marks, no swollen capacitors, not visible cracked > traces. The red LED on the motherboard was firing. IIRC the HDs did > not spin up either. Ended up having to replace both the motherboard > and the CPU as neither tested good. When one went it took the other > along with it, I guess. > > I don't know how far POST goes before it gives up but the power light > going out on release is serious. Perhaps bad RAM or a bad RAM socket > could hang the POST. You might try starting with just one stick of RAM > and try that individual stick in each socket. Check each stick this > way. Doubt that's it though. :-( > > Unless you have a source for very inexpensive replacements, your money > might be better spent on an Intel Mac inasmuch as Apple and third > parties will soon drop all support on PPCs. If you go the repair route > be sure you get the right mobo. Check for exact Apple part numbers > here:http://tinyurl.com/2luemx. It might be wise to push the PMU > (power management unit) button when you mate a PCU to an unacquainted > mobo before startup. -- 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 g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
