G4 733 Quicksilver shuts down in middle of startup chime

I've installed a new 80 gb harddrive (setup as master) installed latest drivers, installed a new pioneer DVD "superdrive".....for the purpose of upgrading my OS from 9.2 to 10.4.6 "tiger".....now machine shuts down almost immediately after the startup chime sounds....Do any of y'all have any ideas on this one.....any and all suggestions would be greatly appreciated....many thanks......

Many thanks William...I had already tried that several times to no avail......But then I remembered something similar that I witnessed at a Mac store when one of the techs was "tearing his hair out" trying to figure out the solution to similar symptoms...He took the memory boards out (one at a time) and, sure enough one of them was causing the problem. I did zap the pram again after reading your comment, but it was still the same. This machine had two memory boards in it, a 128, and a 512..ALL of them must be functional, AND making a good, clean connection. Well, I took out the 128 first, cleaned it, put it back in tried startup....no change. Then I removed the 512, cleaned it, reinstalled it, and when I hit the startup button, it started so quickly, (and the superdrive disk drawer flew open) that it startled me...Problem Solved......What a Christmas present I just got. This machine had been doing really strange things for several years, but was fairly reliable on 9.2. I actually was so aggravated with the G4 that I had just bought another one like it that han a new 40 gb drive in it with OS 10.2.8 already installed along with classic. I put this 40gb HD in this computer, and the new 80 gb
in the new G4......they are both running on X now....I'm so excited, forgive me, but I feel like a kid in a candy store....Happy Holidays to all of you Yeah, MERRY CHRISTMAS and Happy NEW YEAR......thank you all

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Quicksilver shuts down unexpectedly, but not with the case opened.

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and sorry about the bad english, its not my default language.
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Are your internal fans running properly?
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Hi,
So my question is ---- is there any issue with shutting down the entire MT- only (adstpall.sh) -- but leaving the DB up? There should be no issues.
When I do a adstrtal (via my script) the next morning--- everything should just start fine with no DB bonce having been done, right?Correct.
In the past, once I have the MT down, wait 5 min, kill any stray FND processes, I usually go on to bounce the database
"for good measure". I am 99% sure that I don't have to do this... and that there is no harm in "not" doing this, just need
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One more piece of information - Our concurrent managers shut down cleanly almost all of the time without putting jobs on hold.
We don't have many users (< 60) and while we do have autoinvoice that runs every 5 min, I haven't had to do a big bounce
with cmclean.sql very often-- only about once or twice a year when users lock each others tables and the cleanest fix is to bounce
everything --very rarely.You should be OK with your approach.
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Thank you for your answer, but it didn't work.
I forgot something important in my first post : the story of this Quicksilver
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G4 733 Quicksilver shuts down in middle of startup chime

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