Power Mac G5 Won't Turn On

Hi all, I'm a bit new to Macs. I just got this Mac from one of my friends, I plug it in and it makes a clicking noise. I thought this noise was for the power being connected into the board. As I press the button to turn it on the white LED lights up, but only when the button is held pressed. There are also some more clicking noises like when a circuit breaker brakes. The computer however does not turn on (no fans, no boot, nothing but the white LED). I have just reset the PMU and will try later (I don't know what year this is I only have some general info on it). Any help in this will be EXTREMELY appreciated.
Power PC G5 Dual Processer, 512MB400 (RAM), 160GB Hard Drive (Now has no hard drive), Nivida gForce 5200, SD (Don't know what that means), PCI-X, 56 KB Modem, Model Number: A1047.
P.S. also the warrenty on this is up (it was like that when I got it) so I can't go to Apple for it. I am also not willing to spend $230 on a new power supply or anyother thing expensive (well maybe later if I have the money).
Thanks in advance, Chucklz

Hi Chucklz-
Greetings and welcome to the Apple Discussion boards
Since you have already reset the PMU, you most likely have a bad power supply or logic board.
However, replacing the battery is cheap and easy and if that fixes the problem you will be better off than the alternative: Battery Replacement Instructions
Luck-
-DaddyPaycheck

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http://damntechnology.blogspot.com/2009/02/rebuilding-powermac-g5-power-supply.h tml
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Oct 26 23:54:04: Disk Utility started.
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Preparing to secure free space : “Untitled”
Creating Temporary File
Securely erasing file
Creating Temporary File
Securely erasing file
Secure Erase Free Space stopped after 14 hours.
89.0% complete.
Erase complete.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions differ on ./Applications/iTunes.app/Contents/Frameworks/InternetUtilities.bundle/Contents /MacOS/InternetUtilities, should be -rw-rw-r-- , they are -rwxrwxr-x
Permissions differ on ./Library/Application Support/Macromedia/Shockwave 10/Shockwave 10 Preferences, should be -rwxrwxr-x , they are -rw-rw-r--
User differs on ./Users/Shared/SC Info, should be 0, owner is 501
Group differs on ./private/etc/authorization, should be 80, group is 0
The privileges have been verified or repaired on the selected volume
Permissions verification complete
Repairing permissions for “Macintosh HD”
Determining correct file permissions.
Permissions differ on ./Applications/iTunes.app/Contents/Frameworks/InternetUtilities.bundle/Contents /MacOS/InternetUtilities, should be -rw-rw-r-- , they are -rwxrwxr-x
Owner and group corrected on ./Applications/iTunes.app/Contents/Frameworks/InternetUtilities.bundle/Contents /MacOS/InternetUtilities
Permissions corrected on ./Applications/iTunes.app/Contents/Frameworks/InternetUtilities.bundle/Contents /MacOS/InternetUtilities
Permissions differ on ./Library/Application Support/Macromedia/Shockwave 10/Shockwave 10 Preferences, should be -rwxrwxr-x , they are -rw-rw-r--
Owner and group corrected on ./Library/Application Support/Macromedia/Shockwave 10/Shockwave 10 Preferences
Permissions corrected on ./Library/Application Support/Macromedia/Shockwave 10/Shockwave 10 Preferences
User differs on ./Users/Shared/SC Info, should be 0, owner is 501
Owner and group corrected on ./Users/Shared/SC Info
Permissions corrected on ./Users/Shared/SC Info
Group differs on ./private/etc/authorization, should be 80, group is 0
Owner and group corrected on ./private/etc/authorization
Permissions corrected on ./private/etc/authorization
Permissions repair complete
The privileges have been verified or repaired on the selected volume
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.5 GB (237,882,122,240 Bytes)
Used : 11.2 GB (12,042,969,088 Bytes)
Number of Files : 298,349
Number of Folders : 76,969
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
70 %)
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Oct 27 20:59:00: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.6 GB (237,949,358,080 Bytes)
Used : 11.2 GB (11,975,733,248 Bytes)
Number of Files : 298,359
Number of Folders : 76,970
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Oct 28 00:31:37: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Oct 28 18:50:53: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Oct 28 21:00:10: Disk Utility started.
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Repairing permissions for “Macintosh HD”
Determining correct file permissions.
Permissions repair complete
The privileges have been verified or repaired on the selected volume
Oct 29 19:55:10: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions differ on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/Info.plist, should be -rw-rw-r-- , they are -rw-r--r--
Permissions differ on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/MacOS/Flash Player, should be -rwxrwxr-x , they are -rwxr-xr-x
Permissions differ on ./Library/Internet Plug-Ins/flashplayer.xpt, should be -rw-rw-r-- , they are -rw-r--r--
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Repairing permissions for “Macintosh HD”
Determining correct file permissions.
Permissions differ on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/Info.plist, should be -rw-rw-r-- , they are -rw-r--r--
Owner and group corrected on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/Info.plist
Permissions corrected on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/Info.plist
Permissions differ on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/MacOS/Flash Player, should be -rwxrwxr-x , they are -rwxr-xr-x
Owner and group corrected on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/MacOS/Flash Player
Permissions corrected on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/MacOS/Flash Player
Permissions differ on ./Library/Internet Plug-Ins/flashplayer.xpt, should be -rw-rw-r-- , they are -rw-r--r--
Owner and group corrected on ./Library/Internet Plug-Ins/flashplayer.xpt
Permissions corrected on ./Library/Internet Plug-Ins/flashplayer.xpt
Permissions repair complete
The privileges have been verified or repaired on the selected volume
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.6 GB (237,921,976,320 Bytes)
Used : 11.2 GB (12,003,115,008 Bytes)
Number of Files : 299,521
Number of Folders : 77,045
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Oct 29 20:22:20: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Oct 30 17:14:49: Disk Utility started.
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.1 GB (237,409,587,200 Bytes)
Used : 11.7 GB (12,515,504,128 Bytes)
Number of Files : 299,790
Number of Folders : 77,188
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Oct 30 19:41:53: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Oct 31 20:48:58: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
1 HFS volume checked
Volume passed verification
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.1 GB (237,362,040,832 Bytes)
Used : 11.7 GB (12,563,050,496 Bytes)
Number of Files : 300,773
Number of Folders : 77,858
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Nov 3 15:48:08: Disk Utility started.
Verify permissions for “Macintosh HD”
Determining correct file permissions.
Permissions verification complete
The privileges have been verified or repaired on the selected volume
Name : Macintosh HD
Type : Volume
Disk Identifier : disk0s3
Mount Point : /
File System : Mac OS Extended (Journaled)
Connection Bus : ATA
Partition Type : Apple_HFS
Device Tree : first-boot/@0:3
Writable : Yes
Universal Unique Identifier : 2C999ACE-B114-3460-8FE0-4013F539F100
Capacity : 232.8 GB (249,925,094,400 Bytes)
Free Space : 221.1 GB (237,411,020,800 Bytes)
Used : 11.7 GB (12,514,070,528 Bytes)
Number of Files : 300,976
Number of Folders : 77,880
Owners Enabled : Yes
Can Turn Owners Off : Yes
Can Repair Permissions : Yes
Can Be Verified : Yes
Can Be Repaired : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : Yes
S.M.A.R.T. Status : Verified
Disk Number : 0
Partition Number : 3
Nov 3 16:12:13: Disk Utility started.

Help!! My Power Mac G5 won't start up!!

I was working on my computer when all of a sudden everything froze. I tried all the key commands and no response. So, I held the start button until it shut down. Then when I tried to start it back up again after a few minutes, by pushing the start button, only the fan starts. No start up chime. Nothing on my screen. Then the fan starts getting louder and louder like it going to explode! I quickly held the start button again until it shut down. I read through the manual and tried everything it said and still the same thing. I read through alot of the questions and answers on this forum...found alot of similar questions, but no answers that I can use. I tried replacing the surge protector, but still nothing. My business & life is on this computer and stupid me, I didn't back up much! Help!!

Hi Jen:
See if this helps:
http://docs.info.apple.com/article.html?path=DiskUtility/10.5/en/duh1018.html
"Disk Utility 10.5 Help
Testing and repairing your startup disk
If you have problems with your startup disk, you can use Disk Utility to test and repair it. To do so, you must start up from another disk, such as your Install Mac OS X disc.
Start up your computer using another disk.
To use the Install Mac OS X disc, insert the disc and restart your computer holding down the"C" Key OR (Option key and then select the Install Mac OS X disc and click the arrow).
Open Disk Utility.
In the Mac OS X Installer, choose Utilities > Open Disk Utility.
Select the startup disk you want to repair in the list of disks and volumes, then click First Aid.
Click the button to verify or repair the disk or disk permissions.
Check the S.M.A.R.T. status of your hard disk at the bottom of the window. If it shows "Verified," the disk has nothing wrong at this time. If you see "About to Fail" in red letters, back up your files on the disk as soon as possible and replace the disk."
And:
http://docs.info.apple.com/article.html?artnum=300537
"Troubleshooting: My computer displays no video
If your computer won't display video, here's how to troubleshoot it. Please keep in mind that although your computer may display similar symptoms that prevent it from turning on, this article discusses what to do if the computer won't display video, meaning that when you press the power button:
You may hear a startup chime
You may hear fan or drive noise
You may see the power light on the computer light up
If your computer does not turn on, when you press the power button:
You won't hear a startup chime
You won't hear any fan or drive noise
The power indicator on the computer won't light up at all
If your computer is not responding at all, see the Troubleshooting: My computer won't turn on article instead.
If your computer won't display video but you can hear a startup chime, fans, drive noise, or you see the power light turn on, the first question is whether you have an external display attached (such as a Power Mac G4, Power Mac G5, Mac Pro or Mac mini) or if the display is built-in (such as an iMac, eMac, MacBook, MacBook Pro, iBook or PowerBook).
For external displays
Try these steps to resolve the issue:
Make sure that the monitor is turned on and has power. Make sure that the display's power cord is plugged into a working wall outlet, and that it's properly connected to the power adapter. (To check if the wall socket is working, plug in a lamp or other electrical device.)
Check that all video cable connections to the computer video port and to the monitor are properly connected.
Examine the pins on the video cable connector to make sure they are not bent or damaged in any way.
Connect a known working display (if you have an extra one available). If you see video after doing so, replace your old display.
Reset the computer's parameter RAM. (Click the link for instructions.)
On a Mac mini, reset the computer's PMU. (Click the link for instructions.) For Power Macintosh G3, Power Mac G4, or Power Mac G5 computers, check your user guide for the location of the PMU reset button on the logic board.
Next we're going to check to see if the computer has video when started up from a disc:
Find the Install or Restore disc that came with the computer. Insert the Software Install and Restore disc into your CD/DVD drive. The disc may look something like the picture below.
Shut down your computer.
Once it's off, hold down the C key on the keyboard and start up your computer. This will start up the computer from the Software Install and Restore disc instead of your hard drive.
If you see video when started up from disc, you may have corrupted software. You can use the Archive and Install feature of the Mac OS X installer to reinstall. This kind of installation gives you a fresh version of Mac OS X, but you don't lose any data from the computer as your old information is all archived.
If you tried all of the steps above and the computer still won't display video, contact Apple technical support (1-800-APL-CARE in the U.S.) or take your computer to your local Apple Store or Apple Authorized Service Provider (AASP) for diagnosis.
For built-in displays
Try these steps to resolve the issue:
Make sure that the power cord is plugged into a working wall outlet, and that it's properly connected to the power adapter. (To check if the wall socket is working, plug in a lamp or other electrical device.)
Make sure that the power adapter is properly connected to the power port on the back of the computer.
Reset the computer's parameter RAM. (Click the link for instructions.)
On an iBook or PowerBook, reset the computer's PMU. (Click the link for instructions.)
Next we're going to check to see if the computer has video when started up from a disc:
Find the Install or Restore disc that came with the computer. Insert the Software Install and Restore disc into your CD/DVD drive. The disc may look something like the picture below.
Shut down your computer.
Once it's off, hold down the C key on the keyboard and start up your computer. This will start up the computer from the Software Install and Restore disc instead of your hard drive.
If you see video when started up from disc, you may have corrupted software. You can use the Archive and Install feature of the Mac OS X installer to reinstall. This kind of installation gives you a fresh version of Mac OS X, but you don't lose any data from the computer as your old information is all archived.
If you tried all of the steps above and the computer still won't display video, contact Apple technical support (1-800-APL-CARE in the U.S.) or take your computer to your local Apple Store or Apple Authorized Service Provider (AASP) for diagnosis".
-Robert

Power Mac G4 won't come on

My husband has a Power Mac G4 running tiger 10.4.9. The computer itself is about 5 or 6 years old. All had been fine until last evening when he went to start it. It was plugged into a battery backup system. After that was turned on, he pushed the computers power button. The power button lights when he pushes it, then goes out as soon as he lets go. The computer won't come on. He unplugged it from the battery bar, let it sit for an hour then plugged it directly into a wall outlet, same problem. He then left it, the modem, the router, and the battery bar unplugged for the night. Plugging everything in again today he still can't get the computer to come on. Anyone know what his problem may be? Help would be greatly appreciated.
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The internal battery should read at least 3.3 volts DC when checked with a voltmeter. If it reads anything lower, definitely replace it. A fresh 3.6 volt replacement battery should read 3.6 to 3.9 volts.
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Power book G4 won't turn on

So last night I went to plug my charger in and it made a real weird noise then now it won't turn on. Iv had problems with the battery so I'm not sure how to tell if it's the battery that's died or my computer. When I press that button at the back of my computer one green light appears. Thanks

It sounds like your power adaptor may not be working properly, especially since the indicator light doesn't come on. Try the PMU reset that Carolyn linked and see if this makes a difference. Also have a look at this article on troubleshooting power adaptors:
http://support.apple.com/kb/TS1725
It sounds like the battery is fully discharged and not working, but it may be that way because your charger is faulty.
It would be very helpful if you could try a known good battery that is charged, or a known good power adaptor. Do you have access to a friend with the same PowerBook or an Apple Store? If so, see if you can try one or the other or both and see if that cures the problem.
Your Mac should run from a good power adaptor, and it should run from a good battery. If it still won't boot up, the problem would be with the Mac, and possibly with the board that contains the power port. If it does boot up, then you know that you need a new charger and possibly a new battery.
Good luck!

My Mac Mini won't turn on after being stored please help"

I stored my Mac mini for several months as I do every year but this time it won't turn on. Please help! It's an older version probably 2006-2007.

check out this discussion.
you should definitely get a decent UPS to protect your investment.
something like the APC Back-UPS ES 700 should suffice.

Power Mac G4 Won't startup and ejects boot disk.

Hello,
Recently, I got a used Power Mac G4. On startup, it gets to the loading bar and doesn't load anything. It's just a blank white bar with no text aside from the apple logo at the top of the window. I tried inserting the Tiger recovery disk, but when I turn it on, it ejects the disk. I made sure that my keyboard and mouse were not plugged in as it was booting up (there are no other devices that may be causing it to eject), but it's still not solving the problem.
What could possibly be causing this problem?
Thanks,
Nami

It could easily be many things, Logic Board, RAM,Corrupted PRAM or NVRAM, even PSU or anything else, we just have don't have enough data out here to narrow it down yet.
I don't suppose it boots into Target mode...
http://support.apple.com/kb/HT1661
EDIT: Sometimes even a flaky Optical Drive will prevent normal operation & needs to be disconnected.
Might be time to replace the PRAM Battery, 4 years is close to their lifespan, far less if ever without AC power, & if weak can cause really strange problems...
http://eshop.macsales.com/item/Newer%20Technology/BAA36VPRAM/

Mac Mini won't turn over

Hi folks,
A mac mini in my household won't turn over. It gets to the grey Apple screen with the spinning search circle, but stays that way.
The strange behaviour began after I installed the latest security and safari update via Software Update.
I tried resetting the pram, using the included install disk to check the HD with disc first aid with no results. Will I have to re-install the OS now?
Mac Mini PowerPC g4 / 1.5ghz / 512 mb RAM
Your collective help is appreciated.

Welcome to Apple Discussions!
The symptoms you describe and the circumstances in which it occurred are often indicative of a problem with prebinding, and can be caused for example by running the system on other tasks while also applying updates. Prebinding is the process whereby MacOS links executables with their library files, and when it is damaged it can cause the system to become unresponsive or fail.
When you say that you used the install disk to check the HD 'with no results' I assume you mean that it found no problem. Given that you were able to boot the system with that disk, it demonstrates that the system is healthy, so at that point and assuming you did not get any errors when testing with Disk Utility, I would suggest you boot to the install disk again, and select the option to 'archive and install' (an option that is reached by clicking the button for a custom installation). Archive and Install will put a fresh copy of macOS on the drive, but leave your applications and files untouched. Once the new MacOS copy is installed, you can boot as normal and then I would urge you to download the 10.4.11 combo update from the Apple downloads page (http://www.apple.com/downloads/macosx/apple/macosx_updates/macosx10411comboupdat eppc.html) and install that, before running Software Update to grab any additional updates required.
Ensure you are not running any applications or performing any other tasks on the system when performing updates - particularly not when you see the system reporting 'Optimizing system' towards the end of an update. This is when the system is actually updating prebinding, and where running anything else can cause problems. This was a known issue and was resolved in MacOS 10.5.x by a different routine for updates.
As always when doing this kind of work, it is strongly advised that you ensure you have a good backup of all your data first.

Power Mac G4 won't boot in OS X

I have a number of G4's which have been upgraded to Tiger. I am on the last machine running 9.2.2 and it refuses to boot in 10.4. I have tried the Tiger installation CDs, from a firewire drive with a good copy of Tiger on and from a new internal disk with a clean copy of tiger on (Installed via another Mac). All I get is the G4 sitting there with a blank screen with the fan running - no start up question marks or anything.
Does anyone have any idea why this mac won't recognize OS X at all?
TIA
PS Firmware update claims that it is not needed.

First let me ask you this, when you install for the first did your machine boot from the 10.4 or not.
And if you did, sounds like everything is ok if you have what you said you have
G4 350mhz, 512mb RAM, 40 gb drive with OS 9 ,80 gb drive with 10.4
(1) Have you check the Battery Type 3.6V Lithium maybe is out.
(2) did you removed the processor if is 350mhz or did you remove the video card.
Here's a link that might help you out that's if you haven't done it already.
http://docs.info.apple.com/article.html?artnum=301341
Here's a link about the Mac and choose the one you have ok
http://lowendmac.com/ppc/g4upgrades.html
http://lowendmac.com/ppc/yikes-power-mac-g4-pci.html
Here's a old PCworld link for Mac G4
http://www.pcworld.com/article/id,130282/article.html
And at last the link for Apple.
http://docs.info.apple.com/article.html?artnum=301341

Power Mac G5 won't start up and is beeping

Dear friends,
This morning, my Power Mac G5 started to beep. When I try to restart it, it beeps some more and also makes a clicking sound like a metronome.
The computer won't start up anymore. At startup, it displays a grey screen with a little folder in the center that flashes a question mark and a finder icon.
What is wrong with my excellent computer, and how do I fix it?
Marnie

Marnie Glickman-
Could be a variety of things, but most likely your hard drive is not happy. The flashing question mark means that the system is trying to find a working disk with a valid system on it. Should be the hard drive. Isn't.
Launch from the install DVD of the latest OSX system you have. Under the Apple Menu should be the Disk Utility. Launch it and try repairing your hard drive and see if that does the trick.
If not we dig deeper into this excellent problem.
Luck-
-DaddyPaycheck

Power Mac G5 Won't Turn On

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