PowerPC G5 will not soft boot

My 2.3GHz dual core PPC G5 running 10.4.8 will not soft boot that is shut down using the restart and shutdown menu. I have to hard boot it to get it to shut down (holding down the power button on the front of the G5). I have rebooted with the shift key in safe mode with no luck helping with this shutting down the computer glitch. Any ideas would be appreciated.

Sounds as though, if you have a place to put a full computer content clone,
that is something you should try to do; if at all possible. Or use a second
computer to facilitate accessing this ailing one in FireWire Target Disk Mode
and work on saving whatever you can (to another drive; a bootable clone)
so later on, you can wipe the hard disk drive and or replace it; should this
odd issue really only be a failing hard drive or corrupted data on a drive,
all your stuff may not be a total loss.
The original boot-installer disc (DVD) should have the Apple Hardware Test
on it; some of those installers require you to boot while holding Opt key
down in order to see the startup manager menu with AHT option, & etc.
There are others who require a different key to be pressed to access AHT.
Do you have a new replacement hard disk drive on hand so you can put
a new HDD inside the computer, format it, and install a completely new
OS X, to test the computer's hardware from? That may be a home option.
Good luck & happy computing!

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Working in adobe illustrator - computer crashed - will not soft boot or reset PRAM - should i reinstall from CD snow leopard 10.6.3? I have an extra hard drive in my MAC with time machine on it set to do auto back ups. How do i recover ?

working in adobe illustrator - computer crashed - will not soft boot or reset PRAM - should i reinstall from CD snow leopard 10.6.3? I have an extra hard drive in my MAC with time machine on it set to do auto back ups. How do i recover ?

Well first you have to figure out what is wrong with the machine and solve that problem first.
Your post is very vague on what occured, and there are many types of "crashes" it really depends upon what see on the screen and what the hardware does, we can't see it to tell you, so you have to tell us.
I suggest you run through these user tips and provide more information about your hardware.
Disconnect the TimeMachine drive for now
..Step by Step to fix your Mac
Help us to help you on these forums
Create a data recovery/undelete external boot drive
If this is going way over your head, there are local PC/Mac techs that will assist you for a fee, Apple only does hardware repairs and is advised to use them if you discover it is, especially if under warranty/AppleCare.
Hard drive and RAM upgrades can be handled yourself or by a outside tech in many older models of Mac, but don't expect Apple to cover the new parts.
Install/upgrade RAM or storage drive in Mac's

My mac book pro will not fully boot up. I have the grey background with the apple sign and the timer going round...but 20 minutes later still no desktop

My mac book pro will not fully boot up. I have the grey background with the apple sign and the timer going round...but 20 minutes later still no desktop

You could try doing a hard shut down (holding the power button or yanking the battery) and then doing a safe boot by holding the shift key at startup:
http://support.apple.com/kb/HT1455
Also, not sure if this applies in your case, but I've had that happen when there's a USB drive inserted either in the computer or a connected external keyboard. I did a hard shut down, removed the drive and it went through a normal start up.

HT1436 My Power Mac G5 will not fully boot without safe mode, it only comes to a blue screen where my cursor duplicates in to 2, (one is frozen, one can move by moving the mouse). What is my problem, and how do I fix it?

My Power Mac G5 will not fully boot without safe mode, it only comes to a blue screen where my cursor duplicates in to 2, (one is frozen, one can move by moving the mouse). What is my problem, and how do I fix it?

Great clue Lukas...
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

PowerPC G5 will not boot (from CD, single-user, verbose...) - is it dead?

I had posted this in the OSX forum but had a suggestion to post here as well - any suggestions would be greatly appreciated!
My PowerPC G5 (10.4.11) will not boot. It gets to the grey Apple screen, and then freezes there, no progress dial, and the fan starts racing after a couple of minutes sitting there. Here is what I have tried so far and the results:
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-Will not boot in safe mode - freezes at grey screen
-Will not get into single-user mode, freezes at "DART-enabled"
-Will not get into verbose mode, freezes at "DART-enabled"
-Holding option when starting up allows me to select a drive (hard drive or CD), but then freezes at grey screen when attempting to boot from either drive
-Option-Command-Shift-Delete does nothing when starting up, again freezes at grey screen
-Option-Command-P-R does not work - well, maybe it deletes PRAM, but it never even gets to the grey screen, freezes with a blank (black) screen, so that can't be right
-I CAN get into open firmware & eject cd, cannot boot up from there - it freezes at the grey screen with a circle w/a line through it
-Attempted to reset NVRAM from Open Firmware, "reset-nvram" and "set-defaults" both were ok, then it froze after "reset-all"
I have tried everything I could think of and everything I can find - Does anyone have any possible suggestions or ideas for what I can do?
I had a couple suggestions that it could be RAM, so I'm going to try to run Apple Hardware Test, though if I can't boot from a CD, that will make that very difficult. Any thoughts?

Hi svman8-
Did you also reset the SMU?
One thing known to cure various ills is to replace the battery.
This may be a helpful link:
How to reset the SMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005)
Luck-
-DP

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Does the external HD have a GUID partition table?
Is the external drive formatted Mac OS X Extended (journaled)?
Is this a 2011 or late 2012 Mac?
How was Mavericks installed on the external drive?
Who is the builder of the drive mechanism in the external drive?
Who is the builder of the external enclosure?
What type of interface does the external drive have USB2, USB3, Firewire 400, Firewire 800, thunderbolt?
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So you are saying that setting the default in Startup Disk doesn't work?
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You should have Lion Recovery on one of your drives, do a clean install.,
I assume TTPro media scan turns up no errors.
MOVE all your data OFF the boot drive. Keep the system OS and apps on its own drive.
Clone the system. Use TimeMachine and cloning for backup.
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Client MAC ADDR: xx xx xx xx xx xx GUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXX
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Hi,
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Managing Network Boot Programs
http://technet.microsoft.com/en-us/library/cc732351(WS.10).aspx
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We
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Hi Crystalmirror,
Welcome to the Apple Support Communities!
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System will not fully boot to display desktop

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BEFORE GOING TO APPLE ANY LAST IDEA'S ?????

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SUNFIRE V215 Will not auto boot on power restore.

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eeprom:
if_network="false"
if_modem="false"
if_connection="none"
if_emailalerts="false"
sys_autorestart="xir"
sys_bootrestart="reset"
sys_bootfailrecovery="none"
sys_maxbootfail="3"
sys_xirtimeout="900"
sys_boottimeout="900"
sys_wdttimeout="60"
netsc_tpelinktest="true"
netsc_dhcp="false"
netsc_ipaddr="0.0.0.0"
netsc_ipnetmask="255.255.255.0"
netsc_ipgateway="0.0.0.0"
mgt_mailhost=""
mgt_mailalert=""
sc_customerinfo=""
sc_escapechars="#."
sc_powerondelay="false"
sc_powerstatememory="true"
sc_clipasswdecho="true"
sc_cliprompt="sc"
sc_clitimeout="0"
sc_clieventlevel="2"
sc_backupuserdata="true"
sys_eventlevel="2"
-bash-3.00# eeprom
asr-policy=normal
test-args: data not available.
diag-passes=1
local-mac-address?=true
fcode-debug?=false
scsi-initiator-id=7
oem-logo: data not available.
oem-logo?=false
oem-banner: data not available.
oem-banner?=false
ansi-terminal?=true
screen-#columns=80
screen-#rows=34
ttyb-rts-dtr-off=false
ttyb-ignore-cd=true
ttya-rts-dtr-off=false
ttya-ignore-cd=true
ttyb-mode=9600,8,n,1,-
ttya-mode=9600,8,n,1,-
output-device=screen
input-device=keyboard
auto-boot-on-error?=true
error-reset-recovery=sync
load-base=16384
auto-boot?=true
network-boot-arguments: data not available.
boot-command=boot
diag-file: data not available.
diag-device=disk:b
boot-file: data not available.
boot-device== disk0:a rootmir:a net
use-nvramrc?=true
nvramrc=devalias rootmir /pci@1e,600000/pci@0/pci@a/pci@0/pci@8/scsi@1/disk@1,0
security-mode=none
security-password: data not available.
security-#badlogins=0
verbosity=normal
diag-trigger=error-reset power-on-reset
service-mode?=false
diag-script=normal
diag-level=max
diag-switch?=false
scadm show:
if_network="false"
if_modem="false"
if_connection="none"
if_emailalerts="false"
sys_autorestart="xir"
sys_bootrestart="reset"
sys_bootfailrecovery="none"
sys_maxbootfail="3"
sys_xirtimeout="900"
sys_boottimeout="900"
sys_wdttimeout="60"
netsc_tpelinktest="true"
netsc_dhcp="false"
netsc_ipaddr="0.0.0.0"
netsc_ipnetmask="255.255.255.0"
netsc_ipgateway="0.0.0.0"
mgt_mailhost=""
mgt_mailalert=""
sc_customerinfo=""
sc_escapechars="#."
sc_powerondelay="false"
sc_powerstatememory="true"
sc_clipasswdecho="true"
sc_cliprompt="sc"
sc_clitimeout="0"
sc_clieventlevel="2"
sc_backupuserdata="true"
sys_eventlevel="2"
Any help would be greatly appreciated.

Power is fully lost. The UPS shuts down. We are using powerchute software, but we don't want to rely on this. When the UPS gets to a certain discharge amount, we have a script that shuts down other servers and then shuts itself down. But again, when power is restored, it doesn't come up at all. I have to manually press the power button on the front of the server. I'm really beginning to be less and less a fan of Sun...They change all this crud on their new servers. It was hard enough just to get the APC to connect due to their changing of the serial ports on the servers. For the money, I should be able to do ANYTHING with this box.
Edited by: jchutch2 on Jan 10, 2008 3:10 PM

After downloading Yoesmite it will not fully boot

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For general advice see Troubleshooting issues with iTunes for Windows updates.
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tt2

PowerPC G5 will not soft boot

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