PowerMac G5 Wont Startup - Dead Battery???

Hey yall, I have a 1.6 GHz BASE model PCI G5 with 4gigs of ram (maxed) and 80 gig hdd. My concern is that I unplugged it for a schedued power outage, and now it wont boot back up. Worked fine before. I replaced the PSU just in case, but same thing happens. The light on the front stays on for a second, then shuts off. No internals can be heard turning on. It has a 3rd party power cord, but it has been working just fine - first one was getting worn. Any ideas? Could it be the "VRAM Battery"? Thanks

Hello,
Might be time to replace the PRAM Battery, 4 years is close to their lifespan, far less if ever without AC power, & can cause strange startup problems...
http://eshop.macsales.com/item/Newer%20Technology/BAA36VPRAM/

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Hey Guys!
So I have a G5 tower that wont startup. Heres whats going on:
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disk0s3: I/O error.
Invalid node structure
(4,275)
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'PowerManagement emergency overtemp signal. Going to sleep!'
Over and over.
-I reset the nvram in open firmware earlier, which did nothing, but now when I try to start up in open firmware the screen just stays black and nothing happens.
-Earlier, booting in verbose mode would return some errors, then shut down immediately, but now its just goes to a black screen as well.
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-Switched the RAM around, so I'm pretty sure its not a problem with the RAM, or the RAM slots.
Any ideas on what's going on or what I should do next? Or should I just wait for the new PRAM battery? Thanks for helping!

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hello
Ive been reading through problems where machines wont startup...only the flashing icons and clicking...still I cant find a solution...is my machine finally failing
Ive tried inserting the installation disk and reinstalling it but the destination window is empty [i dont see my disk]...please help with a fix...
Message was edited by: marAz14

marAz14 wrote:
Ive been reading through problems where machines wont startup...only the flashing icons and clicking...still I cant find a solution...is my machine finally failing ?
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Ive tried inserting the installation disk and reinstalling it but the destination window is empty [i dont see my disk]...please help with a fix...
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PowerMac G5 Wont Startup - Dead Battery???

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