My B&W G3 won't boot up after OSX upgrade - ehMac.ca
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Old Sep 7th, 2006, 01:33 PM   #1
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My B&W G3 won't boot up after OSX upgrade

After upgrading OSX to 3.9, I restarted and the monitor clicks off into power save mode, I shouldn't mention a few das earlier I did overclock it from a 300 to a 400, I'm going to try multiple things right now, but I'm pretty clueless right now, I'm going to try declocking it but if that doesn't work I don't know what to do, I'm new to these machines..
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Old Sep 7th, 2006, 02:07 PM   #2
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I just tried declocking to 350 and there's no change, but 300 would be difficult as I don't remember which way the original jumper block fits back on, I'll have to look around, but anyway, I have a feeling the cpu isn't affecting this, so I could really use some help.
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Old Sep 7th, 2006, 03:58 PM   #3
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it's no the cpu try a hard restart, hold down the start button for about 10seconds, you might have to re apply the upgrade.
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Old Sep 7th, 2006, 05:44 PM   #4
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No luck with that, a hard restart had no effect whatsoever.
I had a suspision later on that it could be my monitor(I would hope not as I just bought it, although used the apple 21" studio crt display seemed flawless) so I plugged in a 17" crt I had laying around and it worked!!

But I cried a bit inside because I thought I lost my gorgeous 21" display, but as soon as I managed to boot up it was on 800x600, so I changed it to 1024x768, and it pulled the same **** the 21 was pulling!! so now neither display will work and I'm having a horrible time just trying to get a monitor to work! Any ideas on what to do..?
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Old Sep 7th, 2006, 06:13 PM   #5
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Pull the video card out and leave it sitting for 20 minutes or so. Pull power from the the logic board by disconnecting its primary power cable (big one with tons of multi-colored mini-cables running into it), and pull the PRAM battery. Leave everything sitting for 30 minutes. Find and press the logic board reset for 1 second, then plug everything back, including the video card and PRAM battery, and fire it up with a display attached. See what takes place. The video card may be shot, or needs a serious reset.
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Old Sep 8th, 2006, 02:17 AM   #6
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Did you upgrade from a previous version of osx or from os9? If from os9 the G3 may not have had the firmware updated. If you are upgrading from osx then I'm not sure. You could reset the PRAM maybe? (unless that screws with your overclocking).

Edit:
Re-reading your post it's likely that the firmware is okay or you wouldn't see anything at any resolution.
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Old Sep 8th, 2006, 07:39 AM   #7
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Quote:
Originally Posted by Akira
After upgrading OSX to 3.9, I restarted and the monitor clicks off into power save mode, I shouldn't mention a few das earlier I did overclock it from a 300 to a 400, I'm going to try multiple things right now, but I'm pretty clueless right now, I'm going to try declocking it but if that doesn't work I don't know what to do, I'm new to these machines..

It could be one of two things - First, check your CPU speed settings. You could have the pins set at a speed the computer cannot handle and it will shut down or refuse to boot (with no harm done either). You can check out the pin settings here: http://www.xlr8yourmac.com/G3-ZONE/yosemite/OC.html

And second would be a reinstall of the OS. You may have overclocked the G3 too much - I believe a 300 to 400 jump is very unstable and not recommended, 350 would probably worked OK - but during the install the unstable chip could have caused read/write errors on the install making the OS unstable as incomplete.
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Old Sep 8th, 2006, 10:18 AM   #8
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I upgraded from OS9 a few days ago, I didn't myself upgrade any firmware, and the thing was overclocked as an os9 comp, so it actually went through the entire installation at 400, I brang it back down to 350 yesterday and still nothing. I left my tools at a friends place so I still plan on trying out what lars suggested tonight.

Simon: That's where I learned to overclock, I'm following their exact method of overclocking.

But as for firmware, I would have gladly updated had I known it needed one but until I fix this problem I can't reintsall OSX because I can't see anything, nor can I install firmware or anything. unless I can get a hold of yet another monitor and not change the res when I get in. XD

If anyone has any ideas, I'm willing to consider as long as they don't cost money, getting hold of another display is no toruble to get my pc back up.
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Old Sep 8th, 2006, 06:07 PM   #9
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Two things to try if possible.

Reset the PRAM
- Command-Option-P-R = Hold them all at bootup and keep holding them until you hear the boot chime for the fourth time then let go and allow the machine to boot as normal. Among other things this will reset the video resolution prior to the OS loading. At this point you can boot from the OSX CD or OS9 CD.

* Note: As soon as any OS boots it will set the screen resolution again. *

If you have an OS9 system cd (either Restore CD or full retail) boot from that and install OS9 onto the system (assuming it's not there already).

If OS9 is on the hard drive already then you don't need to reinstall OS9, just reboot and hold either "Option" or "Command-Option" (without the quotes). This will force the system to boot to OS9.

*whew*

In OS9, get the firmware update from Apple. It must be applied in OS9 (not Classic mode or OSX).

After that, OSX should allow you to see the screen.
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