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The reset button does work but it doesn’t chime again once pressed. The programmers button doesn’t produce the sad Mac chimes when pressed. Like i said before it doesn’t do anything after the chime, no floppy or scsi activity. Just dead with the screen at the very top of the post this post...

Its the angle of picture. I checked all the legs. All is good with ue8. I have another se/30 that i just removed the ue8 and put back on as well. The picture of what its doing is posted above. Board chimes but thats it.

So found some bad vias, but still no change after bodge wires. Possible damage in inner layers? Found yet another bad via, but still no change. Checked voltages and am getting 5.03 and 12.63. High.more searching

Yeah for sure. Its weird!

Hmmm, never thought of app’s not triggering the fans. Both my 2.7’s and a dual 2.5 are aircooled now. Would rather have the original style lcs for all systems, but so hard to rebuild them and the cost or parts. The quad i wasnt sure of. It over heated and so i took it apart. The lcs had hardly...

I think so. Just a big copper plate then the heat pipes.

So many people give up on these unfortunately, including me lol. Good job:)

I this turned out to be a dud. Processors are dead. At least a good video card. 256meg

Finally got around to putting this back together. I had to finish cutting down the heat sinks and making some mods to the base so the heat pipes would work from the processors. I also had replace a few caps on logic board. I broke off when removing lcs system, and another one had leakage which...

Doesn’t boot or anything. Just the chime. So weird, its a nice board

Yes, bought a new one from mouser.

Yeah this is museum grade. No discolouring etc. i added a 4 meg memory card, blue scsi, and a new battery. Glad i didnt need a hybrid. That would be a pain.

You rock! All good:) thanks for all your help on this.. means a lot to me and my collection:)

Ok, replaced the hc133 from a powerbook 100 that was known to be working. Unit has powered on with keyboard but it isnt perfect. Not sure if Battery is fully charged

I will check again. I know that two ends of the resistor touched to round pads on the diagram you posted. Will make sure it was actually the akd ok, so i get 5v at pin 16. I get some resistance from pin 9 to r189. I get nothing from r189 to akd.

So, tried a bunch of stuff. No change. Even without rom and memory this screen persists. Wondering if owner did something to it when he recapped it?

So i grabbed another g5 dual 2.7. It had a leaky lcs as usual. I was able to get off the cpu cards with no significant damage. Cleaned them up and put them in a known working g5 tower. It powers on, no odd lights. Fans stable, and mouse lights up. I don’t get a chime and nothing on the display...

So, good news. It works. So now what?? I tried the above. So anyways, not sure what needs to be done to fix it starting by keyboard??

Post some good quality pictures of the boards. Show me a good clear close up if the 270c I just did one last week or so

Ok. I did remove and clean it. Will check traces