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This is a new one... my Mom's old Quicksilver G4...
Posted by: PeterB
Date: February 11, 2013 11:28AM
... I have it home with me now, and on startup it makes an "interrupted" startup chime, almost as if it's chiming twice but in the middle, if that makes any sense. In other words, a slightly distorted chime. Is this a PRAM problem? Corrupted RAM or NVRAM? What's the fix, if there is one? TiA




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Re: This is a new one... my Mom's old Quicksilver G4...
Posted by: C(-)ris
Date: February 11, 2013 11:38AM
Try a PRAM reset, the button on the logic board. After that, try removing all the ram and make sure you get the 3 beeps.



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Re: This is a new one... my Mom's old Quicksilver G4...
Posted by: Catzilla
Date: February 11, 2013 11:39AM
Does it boot?
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Re: This is a new one... my Mom's old Quicksilver G4...
Posted by: PeterB
Date: February 11, 2013 12:34PM
Catzilla, it does, or at least it did, until the weird chime thing. I'll try C(-)ris' suggestions.




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Re: This is a new one... my Mom's old Quicksilver G4...
Posted by: PeterB
Date: February 12, 2013 11:02AM
Hmmm... now I get no boot, fan and light on mobo come on, so PS is probably OK... removing RAM made no difference-- no chime, no nothing. Tried PRAM reset, no go. Checked PRAM battery, it's reading 3.6V.




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Re: This is a new one... my Mom's old Quicksilver G4...
Posted by: C(-)ris
Date: February 12, 2013 11:07AM
If it isn't beeping we have narrowed the problem down to a hardware problem that is stopping boot, most likely cause is going to be a bad logic board or CPU. Leave the ram out, and remove the video card, Modem if so equipped, disconnect the hard drive and CD drive IDE cables, and any other USB devices or PCI cards.

This will leave you with just the bare essentials. If you don't get the ram beeps in this configuration, if you are comfortable, remove and reseat the CPU and try again.

If all of that still fails, test with a known good power supply. If it isn't that test with a good CPU. Still no work? Logic board it is.



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