G4 Wont Start Up No chime and fan runs fast.

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G4 Wont Start Up No chime and fan runs fast.

Hi Mac Users,
I am at my wits end! My Mac won't start up.When I switch it on there is no chime and the fan runs fast.
I have checked the battery and it is OK.
Tried the reset button and no joy.
I have reseated the ram memory still no improvement.
I am completely lost without my computer would some kind soul point me in the right direection?
It is the hub of my recording studio and my life cos I'm disabled.
I have read a lots of posts on here and I feel I am getting confused with too much information.
My names not Dan but I am desperate?...........Dylan.

G4, 1.2 GHz

Posted on Jul 3, 2009 12:14 PM

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Answer 1

dylanthermos Author

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Jul 3, 2009 12:46 PM in response to dylanthermos

Hi,
I have just switched on my G4 and when it is on the fan is still running fast and there is a red light on next to where the extra ram memory slots are located.
Does this mean that the power supply is OK?......Dylan

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Answer 2

Jul 3, 2009 1:06 PM in response to dylanthermos

The red LED indicates power to the logic board, which is good.

Try Resetting the Logic Board

Resetting the logic board can resolve many system problems. Whenever you have a
unit that fails to power up, you should follow this procedure
before replacing any modules.
1 Unplug the computer.
2 Press the Power On button on the front of the unit.
3 Open the side access panel.
4 Remove the battery from the logic board.
5 Wait at least 10 minutes before replacing the battery.
6 Make sure the battery is installed in the correct +/-
direction.
7 Reassemble the computer and test the unit.

Note:
This procedure resets the computer’s PRAM. Be sure to
check the computer’s time/date and other system parameter settings

Will your Mac boot using the Tiger install DVD (or another system CD/DVD)?

Will it boot in Safe Mode? See
What is Safe Boot, Safe Mode? (Mac OS X)
http://docs.info.apple.com/article.html?artnum=107392

Look at this link.
*Resolve startup issues and perform disk maintenance with Disk Utility and fsck*
http://docs.info.apple.com/article.html?artnum=106214

 Cheers, Tom 😉

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Answer 3

dylanthermos Author

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Jul 4, 2009 2:52 AM in response to Texas Mac Man

Hi Texas Mac Man,
Thanks for replying so fast.
I did the power down press start button, take out battery, wait ten minutes thing but no joy.
I tried starting holding down the shift key and then I tried holding down the C key, still no joy.
What do you suggest now?
I recall a few weeks ago that I had a fuse blow on me.It was in a plug that powered a gang of six sockets.Could this have been the start of my problems, it certainly seems like the probable cause?.........Dylan

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