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powermac g4 quicksilver beep on startup....
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Mac Enthusiast
Join Date: Dec 1999
Location: UK
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Offline
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hi there
I acquired a Powermac G4 quicksilver (innice condition)
but when I press the power button it gives one beep and the power button flashes on and off
does anyone know what one beep means?
I have taken out and reseated the RAM and swap the RAM sticks over - but it still gives a beep on startup - and nothing comes up on screen
Richard
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PowerMac G5 Dual 1.8GZ, 2GB RAM, 150 & 300 GB Internal Hard Drives, AGP Geoforce 5200 64MB Graphics Card, Superdrive.
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Administrator  Join Date: Jun 2000
Location: California
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How many flashes? They'll repeat.
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Mac Enthusiast
Join Date: Dec 1999
Location: UK
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Originally Posted by reader50 
How many flashes? They'll repeat.
one beep and then the power button flashes twice in succession (two flashes = pause - two flashes - pause)
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PowerMac G5 Dual 1.8GZ, 2GB RAM, 150 & 300 GB Internal Hard Drives, AGP Geoforce 5200 64MB Graphics Card, Superdrive.
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Mac Enthusiast
Join Date: Dec 1999
Location: UK
Status:
Offline
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I tried swapping graphics cards - same thing
I tried swapping/reseating the RAM -same thing
I tried removing the pram battery and pressing the reset button on the logic board - same thing
anyone have idea what could be the problem?
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PowerMac G5 Dual 1.8GZ, 2GB RAM, 150 & 300 GB Internal Hard Drives, AGP Geoforce 5200 64MB Graphics Card, Superdrive.
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Managing Editor
Join Date: Jul 2012
Status:
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Toughie. I'd start with a replacement power supply if you have one handy. Otherwise, I'm guessing motherboard.
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Administrator Join Date: Jun 2000
Location: California
Status:
Offline
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1 beep, 2 flashes = no RAM installed or detected.
Try booting with a single stick of RAM at a time. Try with different sticks.
If you're lucky, a single bad stick is holding everything else up. If you're unlucky, the memory controller is gone. Since it's soldered down (part of the northbridge chip) that means motherboard failure.
note: the QS takes PC-133 SDRAM unbuffered, no parity. Max size 512 MB per stick (1.5 GB max overall). In practice, it takes up to 256 MB sticks, and accepts "low-density" 512 sticks. Which turned out to be uncommon - most 512 sticks will recognize as 256 sticks, or not be recognized.
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