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G3 Major Problems?

By JParade ·
I have a G3 desktop (266mhz, 320mb RAM, OS9.1) in which I believe the analog borad is going out. EVERY time I try to restart it, I have to Zap the PRAM at least twice before it will boot, after which I have to reset the Appletalk. The display flakesout, shakes, and sometimes disappears altogether. The sound hasn't worked in a long time, and the NIC card works intermittently. I have done all of the firmware updates, changed the battery, ran Disk First Aid, ran Norton's Disk Doctor, rebuilt the desktop, and then the system folder, but still it doesn't work right. I finally said heck with it, and ordered a new machine. I work for a school, and as we are on a very tight budget, would like to get more use out of this machine. I don't feel confident giving to someone else, as they won't know how to baby it, as it is needed to be. What can I do? Is it the logic board? What else could be causing all of these problems?
P.S. I have also ruled out the possibility of a virus by using Norton's Anti-Virus with the latest virus definitions.
Thanks in advance, JAKE

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G3 Major Problems?

by Mattl In reply to G3 Major Problems?

Try resetting the CUDA switch on the system board.

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G3 Major Problems?

by JParade In reply to G3 Major Problems?

This is the "reset" button right? I tried that and it didn't work. Thanks anyway.

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G3 Major Problems?

by JParade In reply to G3 Major Problems?

This is the "reset" button right? I tried that and it didn't work. Thanks anyway.

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G3 Major Problems?

by charleskin In reply to G3 Major Problems?

I would recommend buying "TechTools Pro" and running it to ascertain the condition of your system. Once you have verified the condition, decide if it is worth while to fix it. If TechTools Pro says there is nothing wrong, reset the P-RAM using TechTools (this will do the most complete flush of the P-RAM possible). It seems as if you have an extension problem or a hardware issue going on. Just to be fair.."DiskWarrior from Alsoft is an easy to use tool also.
I hope this helps.
Charleskin

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G3 Major Problems?

by JParade In reply to G3 Major Problems?

Neither TechTool (the one from MicroMat, right?) nor Diskwarrior found any problems with it. Thanks anyway.

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G3 Major Problems?

by FXOLeary In reply to G3 Major Problems?

I would suggest restoring the machine to its original condition as best you can. Remove any cards, drives, RAM, keyboard, etc. that didn't ship with the Mac and then begin to test. Use it in this "stock" condition to see if your trouble is gone. If so, add back components one at a time and test. If this gets you on the right track you should then also be mindful of the possibility of add-on components conflicting with one another. I would point to my experience with a beige G3 where a Radeon card worked flawlessly and a PCI 2-port USB card worked flawlessly, but when installed together, HD data corruption occured so severely as to force a complete reinstall of the system.

Good luck.

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G3 Major Problems?

by JParade In reply to G3 Major Problems?

Poster rated this answer

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G3 Major Problems?

by grandhighdruid In reply to G3 Major Problems?

First of all, the CUDA is a system controller chip on the actual system board, and is not the same thing as the reset button. This grey button is usually, if memory serves, by the processor. Just depress it once for about a second, and that will reset that controller chip. As for the other problems, I have found that, especially with Macs, that completely wiping and restoring the system sometimes corrects problems that look like hardware problems, that even reinstalling the OS doesn't fix. If none of this takes care of the problem, then try switching out the "personality card" (aka the video card) with your other one. Sometimes one piece of bad hardware can cause other problems. The only other option is the logic board:-(. Hope this helps!!!!

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G3 Major Problems?

by JParade In reply to G3 Major Problems?

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G3 Major Problems?

by belovedinhim In reply to G3 Major Problems?

hi jake
its not the logic board
if you want, just go back to basic
just reformat you harddrive with os8.5
and dont add any third party software

thank andrew

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