Mac Desktops forum

General discussion

G4 - nothing happens when I press the power button

by Bobananda / August 1, 2010 3:19 PM PDT

Hello, folks at MacFixIt Forum.
I need your help. First things first.

1) The type and model of my Mac:

Machine Model: Power Mac G4 (Gigabyt Ethernet model)
CPU Type: PowerPC G4 (2.9)
Number Of CPUs: 2
CPU Speed: 450 MHz
L2 Cache (per CPU): 1 MB
Memory: 512 MB
Bus Speed: 100 MHz
Boot ROM Version: 4.2.8f1
MacOS: 10.3.9

2) The Operating System is MacOS 10.3.9
3) Ram I have installed is 512 MB
4) Size of hard drive is 38.05 GB (about 11 GB available)
5) Devices you have attached to your Mac are:
Epson printer (R200) with usb connection
Imation super disk dirve (usb - seldom used)

Here is my problem. Earlier today, quite out of nowhere, I went to turn on my computer and nothing happened. I mean nothing. I double-checked everything. It was all hooked up, everything was in place, the monitor and printer came on. But when I pressed the power button on my computer, nothing happened. It worked fine yesterday. I shut it down as I always do, no problems. But today, nothing.
I periodically checked on it, still nothing happened, until - all of a sudden - the power light came on and the computer started. Start-up proceeded normally. The system is operating normally.
So here I am, at MacFixIt Forum, seeking help in understanding just what in the hell happened and what I can do if it happens again.
I looked at some old threads but didn't find one with my particular computer.
Nor do I know much about resetting PMU or PRAM or CUDA, whatever that is.


Thank you.

Discussion is locked
You are posting a reply to: G4 - nothing happens when I press the power button
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: G4 - nothing happens when I press the power button
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
First step,
by mrmacfixit Forum moderator / August 1, 2010 9:52 PM PDT

replace the internal battery.
You can get them at Radio Shack.

To reset the PRAM, hold down the Apple (Command) key + Option + P + R at the first chime and hold them down for a further two chimes.
Release and let the machine boot.

Replace the battery first


P

Collapse -
Thank you. About the battery...
by Bobananda / August 2, 2010 12:24 PM PDT
In reply to: First step,

...I do not have the specs for this computer. Does anyone know what battery, specifically, is used in this model?
I assume it doesn't cost all that much, but can someone give me an estimate. I'm surviving (barely) on unemployment benefits, so cost is an issue.
Also, is it safe for a nontechnical computer person to go inside it and change the battery without risking some considerable misfortune?

Thanks for the help. This forum is a valuable service for people like me.

Collapse -
That battery is about $16.00 from Radio Shack
by mrmacfixit Forum moderator / August 2, 2010 10:05 PM PDT
Popular Forums
icon
Computer Newbies 10,686 discussions
icon
Computer Help 54,365 discussions
icon
Laptops 21,181 discussions
icon
Networking & Wireless 16,313 discussions
icon
Phones 17,137 discussions
icon
Security 31,287 discussions
icon
TVs & Home Theaters 22,101 discussions
icon
Windows 7 8,164 discussions
icon
Windows 10 2,657 discussions

GIVEAWAY

Turn up the volume with our Apple Byte sweeps!

Two lucky winners will take home the coveted smart speaker that lets Siri help you around your connected house. This sweepstake ends Feb. 25, 2018.