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Apple Computing Products:
macOS - Desktop Hardware
No chime, but G5 powers up
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<blockquote data-quote="HarryHydro" data-source="post: 909581" data-attributes="member: 117592"><p>Hi Zombi1:</p><p> I bought it to work today and put the supply on a scope to check for ripple (I soldered-in some leads on +12, +5, and +3.3 and they come out the back). The supply looks very clean, to my supprise. I only have the VGA monitor on the stock video card, and that's not even waking up. I've been starting and stopping a dozen or so times. I was watching the 24V on the DV port of the video card. This is hot all the time. It didn't even flicker when I turned it on. But then, the monitor came on! It's working! I jumped into the console and saved the whole log onto a USB thumb-drive. I went into the (about this mac) to look at how much memory was reported. It tells me J11 and J12 are empty (I have this thing loaded with 8 1gig sticks). So, I pull those two sticks. These are the inner two on the two banks. Start up, now it says I'm missing 4. J13 and J14 are also reported missing (the first 2 gigs?). I move the sticks in 13 and 14 to 11 and 12. No display. I can still hear that everything is booting up with the hard drive. I move those two sticks back to 13 and 14, press the reset button on the board, and the screen comes back and it says I have 6 gigs! Only the 11 and 12 that are in fact not in now, are reported 'not installed'. I have, in the past (maybe a year ago) arbitrarily looked at this (about this mac) and seen J11 and J12 as being empty. A restart bought them back. There is something very goofy going on with the memory manager or something. I don't even have the CMOS battery in now, so the date is always coming up 1969, but even though I read 3.6V on the battery, I might put a little load-test on it. I'm also leaving the first two mem-sticks out of J11 and J12. The chime sounds cleaner without them for some reason. Something going on there. I'll keep you posted.</p><p>Harry</p></blockquote><p></p>
[QUOTE="HarryHydro, post: 909581, member: 117592"] Hi Zombi1: I bought it to work today and put the supply on a scope to check for ripple (I soldered-in some leads on +12, +5, and +3.3 and they come out the back). The supply looks very clean, to my supprise. I only have the VGA monitor on the stock video card, and that's not even waking up. I've been starting and stopping a dozen or so times. I was watching the 24V on the DV port of the video card. This is hot all the time. It didn't even flicker when I turned it on. But then, the monitor came on! It's working! I jumped into the console and saved the whole log onto a USB thumb-drive. I went into the (about this mac) to look at how much memory was reported. It tells me J11 and J12 are empty (I have this thing loaded with 8 1gig sticks). So, I pull those two sticks. These are the inner two on the two banks. Start up, now it says I'm missing 4. J13 and J14 are also reported missing (the first 2 gigs?). I move the sticks in 13 and 14 to 11 and 12. No display. I can still hear that everything is booting up with the hard drive. I move those two sticks back to 13 and 14, press the reset button on the board, and the screen comes back and it says I have 6 gigs! Only the 11 and 12 that are in fact not in now, are reported 'not installed'. I have, in the past (maybe a year ago) arbitrarily looked at this (about this mac) and seen J11 and J12 as being empty. A restart bought them back. There is something very goofy going on with the memory manager or something. I don't even have the CMOS battery in now, so the date is always coming up 1969, but even though I read 3.6V on the battery, I might put a little load-test on it. I'm also leaving the first two mem-sticks out of J11 and J12. The chime sounds cleaner without them for some reason. Something going on there. I'll keep you posted. Harry [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
No chime, but G5 powers up
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