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G4 shutdown/ restart problem

Message #1 - Posted 2005/05/23 - PeterG

My G4 has recently refused to Restart or Shut Down from the Apple menu. All the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off. [the volume also sets to mute when I re-boot] I can get it to sleep using the Apple menu or the power key on the monitor. It only appears that the Restart and Shut Down which are the problems.

I have tried...

resting the NVRAM & PRAM -battery reads 3.7v [cmd-opt-p-r] [cmd-opt-n-v]
removing and re-seating the memory
removed all unnecessary peripherals
run Applejack for Tiger
run TechTool Pro v4.0.4
run DiskWarrior v3.0.3
started up in Safe mode

I _may_ have tried other things but just now can not recall.

I am unable to say when this problem was created as my machine is normally on 24/7 and did not come to light until I was forced to re-boot after installing some software -and yes I have checked it. Could it be the upgrade from 10.4 to 10.4.1?

Any help/ suggestions much appreciated.

[System- macintosh G4; OSX 10.4.1; 1GHz; 896 Mb SDRAM]

Regards

PeterG. (aka Lobo)

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Message #2 - Posted 2005/05/23 - morenuf

Previously, PeterG wrote:

My G4 has recently refused to Restart or Shut Down from the Apple menu. All the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off. [the volume also sets to mute when I re-boot] I can get it to sleep using the Apple menu or the power key on the monitor. It only appears that the Restart and Shut Down which are the problems.

I have tried...

resting the NVRAM & PRAM -battery reads 3.7v [cmd-opt-p-r] [cmd-opt-n-v]
removing and re-seating the memory
removed all unnecessary peripherals
run Applejack for Tiger
run TechTool Pro v4.0.4
run DiskWarrior v3.0.3
started up in Safe mode

some software -and yes I have checked it. Could it be the upgrade from 10.4 to 10.4.1?

Any help/ suggestions much appreciated.

[System- macintosh G4; OSX 10.4.1; 1GHz; 896 Mb SDRAM]

One more thing to at least try:

Open the G4 case, (carefully ground yourself by touching the metal case of the power supply), find and press the PMU (power management unit) ONCE. It is located near the battery.

Restart. Hope it works for you.

Otherwise I have no clue, except install OSX again (Archive & install).

G'Day
Morenuf

morenuf@nobodyhome.com.invalid

Message #3 - Posted 2005/05/23 - PeterG

On Mon, 23 May 2005 14:01:55 +0100, morenuf scribbled by his own authority...

(in a previous article):

Previously, PeterG wrote:

My G4 has recently refused to Restart or Shut Down from the Apple menu. All the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off.
[the volume also sets to mute when I re-boot] I can get it to sleep using the
Apple menu or the power key on the monitor. It only appears that the Restart
and Shut Down which are the problems.

I have tried...

resting the NVRAM & PRAM -battery reads 3.7v [cmd-opt-p-r] [cmd-opt-n-v]
removing and re-seating the memory
removed all unnecessary peripherals
run Applejack for Tiger
run TechTool Pro v4.0.4
run DiskWarrior v3.0.3
started up in Safe mode

some software -and yes I have checked it. Could it be the upgrade from 10.4 to 10.4.1?

Any help/ suggestions much appreciated.

[System- macintosh G4; OSX 10.4.1; 1GHz; 896 Mb SDRAM]

One more thing to at least try:

Open the G4 case, (carefully ground yourself by touching the metal case of the power supply), find and press the PMU (power management unit) ONCE. It is located near the battery.

I had tried that after getting info from the Apple site. That said, it didn't seem to do anything.

Restart. Hope it works for you.

Sorry nope

Otherwise I have no clue, except install OSX again (Archive & install).

Not an option, at this stage.

Thanks for your input.

Regards

PeterG. (aka Lobo)

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Message #4 - Posted 2005/05/23 - Andy Hewitt

PeterG wrote:

<Snipped Text>

One more thing to at least try:

Open the G4 case, (carefully ground yourself by touching the metal case of the power supply), find and press the PMU (power management unit) ONCE. It is located near the battery.

I had tried that after getting info from the Apple site. That said, it didn't seem to do anything.

Restart. Hope it works for you.

Sorry nope

Otherwise I have no clue, except install OSX again (Archive & install).

Not an option, at this stage.

Thanks for your input.

I have a reproducable similar crash when I install Content Barrier. I also found a cause from TechTool before I updated it to the latest version.

Try removing third party extensions first, along with unplugging any non-Apple USB devices - these are a big well known cause.

Andy Hewitt ** FAF#1, (Ex-OSOS#5) - FJ1200 ABS
Honda Civic: Windows free zone (Mac G5 Dual Processor)
http://mysite.wanadoo-members.co.uk/thehewitts2/index.htm (updated Feb 21 2005)

Message #5 - Posted 2005/05/23 - PeterG

On Mon, 23 May 2005 19:24:58 +0100, Andy Hewitt scribbled by his own authority...
(in a previous article):

PeterG wrote:

<Snipped Text>

One more thing to at least try:

Open the G4 case, (carefully ground yourself by touching the metal case of the power supply), find and press the PMU (power management unit) ONCE. It is located near the battery.

I had tried that after getting info from the Apple site. That said, it didn't
seem to do anything.

Restart. Hope it works for you.

Sorry nope

Otherwise I have no clue, except install OSX again (Archive & install).

Not an option, at this stage.

Thanks for your input.

I have a reproducable similar crash when I install Content Barrier. I also found a cause from TechTool before I updated it to the latest version.

Don't have Content Barrier. Running TechTool pro v4.0.4

Try removing third party extensions first, along with unplugging any non-Apple USB devices - these are a big well known cause.

Don't have any non-Apple stuff attached other than long standing Logitech mouse. System was running fine until recently... 10.4.1 maybe?

Since the mac will sleep and, as I keep on mainly 24/7, unless I am forced to re-boot for some reason it looks like this one will have to sit on the back burner until someone can come with something. :->(

Thanks Andy

Regards

PeterG. (aka Lobo)

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Message #6 - Posted 2005/05/23 - Andy Hewitt

PeterG wrote:

<Snipped Text>

I have a reproducable similar crash when I install Content Barrier. I also found a cause from TechTool before I updated it to the latest version.

Don't have Content Barrier. Running TechTool pro v4.0.4

Try removing third party extensions first, along with unplugging any non-Apple USB devices - these are a big well known cause.

Don't have any non-Apple stuff attached other than long standing Logitech mouse. System was running fine until recently... 10.4.1 maybe?

Since the mac will sleep and, as I keep on mainly 24/7, unless I am forced to re-boot for some reason it looks like this one will have to sit on the back burner until someone can come with something. :->(

Ok, just a thought. It worked Ok on my G5, but I must admit that our G3 iMac has the same problem, and I have no idea why.

Andy Hewitt ** FAF#1, (Ex-OSOS#5) - FJ1200 ABS
Honda Civic: Windows free zone (Mac G5 Dual Processor)
http://mysite.wanadoo-members.co.uk/thehewitts2/index.htm (updated Feb 21 2005)

Message #7 - Posted 2005/05/23 - Simon Dobbs

On Mon, 23 May 2005 11:30:49 +0100, PeterG wrote (in a previous article):

My G4 has recently refused to Restart or Shut Down from the Apple menu. All the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off.

[the volume also sets to mute when I re-boot] I can get it to sleep using the

Apple menu or the power key on the monitor. It only appears that the Restart and Shut Down which are the problems.

I had a similar problem..related to tiger and firewire hard disks...but you said you removed all peripherals...

Message #8 - Posted 2005/05/23 - PeterG

On Mon, 23 May 2005 21:05:15 +0100, Andy Hewitt scribbled by his own authority...
(in a previous article):

PeterG wrote:

<Snipped Text>

I have a reproducable similar crash when I install Content Barrier. I also found a cause from TechTool before I updated it to the latest version.

Don't have Content Barrier. Running TechTool pro v4.0.4

Try removing third party extensions first, along with unplugging any non-Apple USB devices - these are a big well known cause.

Don't have any non-Apple stuff attached other than long standing Logitech mouse. System was running fine until recently... 10.4.1 maybe?

Since the mac will sleep and, as I keep on mainly 24/7, unless I am forced to
re-boot for some reason it looks like this one will have to sit on the back burner until someone can come with something. :->(

Ok, just a thought. It worked Ok on my G5, but I must admit that our G3 iMac has the same problem, and I have no idea why.

Ah, I'm not alone. :-)

Regards

PeterG. (aka Lobo)

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Message #9 - Posted 2005/05/23 - PeterG

On Mon, 23 May 2005 21:13:37 +0100, Simon Dobbs scribbled by his own authority...
(in a previous article):

On Mon, 23 May 2005 11:30:49 +0100, PeterG wrote (in a previous article):

My G4 has recently refused to Restart or Shut Down from the Apple menu. All the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off.

[the volume also sets to mute when I re-boot] I can get it to sleep using the

Apple menu or the power key on the monitor. It only appears that the Restart
and Shut Down which are the problems.

I had a similar problem..related to tiger and firewire hard disks...but you said you removed all peripherals...

Yep, plus I don't any firewire stuff. Thanks for your input.

The only thing I have not tried is removing a third hard drive that I recently fitted in the Zip drive bay. I can't see how that can be related and well I just can't be...

Regards

PeterG. (aka Lobo)

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Message #10 - Posted 2005/05/23 - Andy Hewitt

PeterG wrote:

<Snipped Text>

Ok, just a thought. It worked Ok on my G5, but I must admit that our G3 iMac has the same problem, and I have no idea why.

Ah, I'm not alone. :-)

Indeed. If you check the Apple.com forums, you'll see it's more common than this too :-(

Andy Hewitt ** FAF#1, (Ex-OSOS#5) - FJ1200 ABS
Honda Civic: Windows free zone (Mac G5 Dual Processor)
http://mysite.wanadoo-members.co.uk/thehewitts2/index.htm (updated Feb 21 2005)

Message #11 - Posted 2005/05/23 - Simon Dobbs

On Mon, 23 May 2005 22:21:04 +0100, PeterG wrote (in a previous article):

Zip drive bay

on a G4?

Message #12 - Posted 2005/05/24 - johnny bobby bee

PeterG wrote:

My G4 has recently refused to Restart or Shut Down from the Apple menu. All the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off.

it won't fix your problem, but does the same thing happen if you try to shutdown using the terminal?
you may need to be root (sudo).
shutdown -h now (to poweroff/halt)
shutdown -r now (to reboot)

there's no place like ~
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Message #13 - Posted 2005/05/24 - PeterG

On Mon, 23 May 2005 22:44:36 +0100, Simon Dobbs scribbled by his own authority...
(in a previous article):

Zip drive bay

on a G4?

'fraid so... G4 Digital Audio. There is a space below the CD bay for a Zip drive which is blanked off by a matching colour plastic facia.

Regards

PeterG. (aka Lobo)

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Message #14 - Posted 2005/05/24 - PeterG

On Tue, 24 May 2005 09:54:10 +0100, johnny bobby bee scribbled by his own authority...
(in a previous article):

PeterG wrote:

My G4 has recently refused to Restart or Shut Down from the Apple menu. All the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off.

it won't fix your problem, but does the same thing happen if you try to shutdown using the terminal?
you may need to be root (sudo).
shutdown -h now (to poweroff/halt)
shutdown -r now (to reboot)

Sorry, I'm not too familiar with the 'terminal' and have not ventured there unless taken by the hand. :-(

Regards

PeterG. (aka Lobo)

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Message #15 - Posted 2005/05/24 - johnny bobby bee

PeterG wrote:

Sorry, I'm not too familiar with the 'terminal' and have not ventured there unless taken by the hand. :-(

well - firstly, i don't have Tiger, so it may be slightly different. you must be an administrator of the Mac. goto the applications folder, then the Utilities folder and double click on the 'Terminal' application.

then in the Terminal, just type 'sudo shutdown -h now' (no quotes) to poweroff/halt
it'll ask for your admin password - type it
or
'sudo shutdown -r now' (no quotes) to reboot it'll ask for your admin password - type it

see what happens.

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there's no place like ~
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Message #16 - Posted 2005/05/24 - PeterG

On Tue, 24 May 2005 20:32:59 +0100, johnny bobby bee scribbled by his own authority...
(in a previous article):

[snip]

see what happens.

Now that's the bit that worries me!

Regards

PeterG. (aka Lobo)

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Message #17 - Posted 2005/05/24 - Stephen C.

On Mon, 23 May 2005 6:01:55 -0700, morenuf wrote
(in message <morenuf-3DDEC7.09015423052005@news-rdr-02.ohiordc.rr.com>):

Previously, PeterG wrote:

My G4 has recently refused to Restart or Shut Down from the Apple menu. All
the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off.
[the volume also sets to mute when I re-boot] I can get it to sleep using the
Apple menu or the power key on the monitor. It only appears that the Restart
and Shut Down which are the problems.

I have tried...

resting the NVRAM & PRAM -battery reads 3.7v [cmd-opt-p-r] [cmd-opt-n-v]
removing and re-seating the memory
removed all unnecessary peripherals
run Applejack for Tiger
run TechTool Pro v4.0.4
run DiskWarrior v3.0.3
started up in Safe mode

some software -and yes I have checked it. Could it be the upgrade from 10.4
to 10.4.1?

Any help/ suggestions much appreciated.

[System- macintosh G4; OSX 10.4.1; 1GHz; 896 Mb SDRAM]

One more thing to at least try:

Open the G4 case, (carefully ground yourself by touching the metal case of the power supply), find and press the PMU (power management unit) ONCE.

I have seen more than one reference to pressing the PMU only once, but no explanation of what would happen if it were pressed more than once. Anyone care to elaborate?

Stephen C.

It is located near the battery.

Restart. Hope it works for you.

Otherwise I have no clue, except install OSX again (Archive & install).

G'Day
Morenuf

Message #18 - Posted 2005/05/24 - johnny bobby bee

PeterG wrote:

Now that's the bit that worries me!

try it. nothing bad will happen. either it'll work, the computer will shutdown or not, and it'll hang, just as it is using the menu command.

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there's no place like ~
(remove _eh to email.)

Message #19 - Posted 2005/05/25 - PeterG

On Tue, 24 May 2005 22:21:01 +0100, johnny bobby bee scribbled by his own authority...
(in a previous article):

PeterG wrote:

Now that's the bit that worries me!

try it. nothing bad will happen. either it'll work, the computer will shutdown or not, and it'll hang, just as it is using the menu command.

OK; tried to reboot and here is what I get...

System shutdown time has arrived
Stopping Network Information Service
Stopping Apache web server
/usr/sbin/apachectl stop: httpd (no pid file) not running Stopping network time synchronization
kextload: extension /Library/StartupItems/VirusBarrier/VirusBarrierService.kext appears to be valid
kextload: loading extension /Library/StartupItems/VirusBarrier/VirusBarrierService.kext kextload: extension /Library/StartupItems/VirusBarrier/VirusBarrierService.kext is already loaded Starting...
Done.

Regards

PeterG. (aka Lobo)

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Message #20 - Posted 2005/05/25 - PeterG

On Wed, 25 May 2005 11:57:26 +0100, PeterG scribbled by his own authority... (in a previous article):

On Tue, 24 May 2005 22:21:01 +0100, johnny bobby bee scribbled by his own authority...
(in a previous article):

PeterG wrote:

Now that's the bit that worries me!

try it. nothing bad will happen. either it'll work, the computer will shutdown or not, and it'll hang, just as it is using the menu command.

OK; tried to reboot and here is what I get...

System shutdown time has arrived
Stopping Network Information Service
Stopping Apache web server
/usr/sbin/apachectl stop: httpd (no pid file) not running Stopping network time synchronization
kextload: extension /Library/StartupItems/VirusBarrier/VirusBarrierService.kext appears to be valid
kextload: loading extension /Library/StartupItems/VirusBarrier/VirusBarrierService.kext kextload: extension /Library/StartupItems/VirusBarrier/VirusBarrierService.kext is already loaded Starting...
Done.

Ooooops the above should have been "SHUTDOWN" not 'reboot'. <sorry>

Twice I have used the REBOOT command and it worked OK on both occasions. Now, what does that tell you? [not me 'cause I haven't a clue!] The reboot option certainly solves an immediate problem as I nearly never have my machine switched off and only reboot when software dictates. That said, I'd really like to get to the bottom of the problem.

Meanwhile, THANKS for your assistance and for teaching me something. <VBG>

Regards

PeterG. (aka Lobo)

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Message #21 - Posted 2005/05/25 - PeterG

On Tue, 24 May 2005 22:18:23 +0100, Stephen C. scribbled by his own authority...
(in a previous article):

[snip]

Open the G4 case, (carefully ground yourself by touching the metal case of the power supply), find and press the PMU (power management unit) ONCE.

I have seen more than one reference to pressing the PMU only once, but no explanation of what would happen if it were pressed more than once. Anyone care to elaborate?

Stephen C.

[snip]

Read on...

.. <http://docs.info.apple.com/article.html?artnum=95037>

Extract...
.. 2. Press the PMU reset switch (S1) once on the logic board. Do not press the PMU reset switch a second time because it could stop the PMU chip from responding.

Regards

PeterG. (aka Lobo)

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Message #22 - Posted 2005/05/25 - morenuf

Previously, Stephen C. wrote:

One more thing to at least try:

Open the G4 case, (carefully ground yourself by touching the metal case of the power supply), find and press the PMU (power management unit) ONCE.

I have seen more than one reference to pressing the PMU only once, but no explanation of what would happen if it were pressed more than once. Anyone care to elaborate?

Stephen C.

NOTES on PMU

Apple documentation sparse on this. All they really says is that PMU might get corrupted and a PRAM battery could be drained within days instead of 3-4 years life expectancy. They just stress press it ONLY once (no doubt to avoid someone pressing it several times in short succession time peroid).

But the PMU is majorly involved in startup boot time issues including the PRAM. Apparently it is easily corrupted by transient voltage (power distruptions brownouts etc) and whatever that may get by the powersupply internal to your Mac. This includes static electrical charges that may occur while you are inside your Mac touching the motherboard.

In past 5 years I have had situations where I had to use the PMU reset to get a non functional G4 to boot. Two instances where likely related to when I was inside G4 case installing harddrives (despite my being careful to ground myself) and two others instances related to thunderstorms/power outages. Both the latter happened even with G4s turned off but still connected to main power via powerstrips/surger protectors. In all cases, once I did this my G4 Macs were functional again. The scenarios rarely happened, but disconcerting when they did, especially the first time it happened. Took me a while to figure it out.

Just thought PMU might work in your case.

????????????????
another thought: bad RAM (3rd party or even Apple's) or reseat all RAM another thought:

Some have used the NVRAM reset procedure to solve some problematic scenarios. You might try it. Not sure it would help you tho.

1. Restart your Mac holding down the Command, Option, O, and F keys. Wait a few seconds and then you will enter Open Firmware mode. 2. Type: reset-nvram
3. Press Return key (will return to you to the prompt, your nvram settings are now factory default)
4. Then type: reset-all
5. Press Return key (will reset your logic board and PRAM settings)

??????
Hope you figure it out.
G'Day
Morenuf

morenuf@nobodyhome.com.invalid

Message #23 - Posted 2005/05/25 - turbogeek

I have both a 2xG5 and a 17 PowerBook and they do not shutdown, just as described. This has happened since Tiger (no change with 10.4.1).

When I try a shutdown via the terminal I also get a failure from DeleteTrap.kext which says it fails to load and this terminated the shutdown sequence.

To summarize: Confused

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Message #24 - Posted 2005/05/25 - johnny bobby bee

PeterG wrote:

Twice I have used the REBOOT command and it worked OK on both occasions. Now, what does that tell you? [not me 'cause I haven't a clue!] The reboot option certainly solves an immediate problem as I nearly never have my machine switched off and only reboot when software dictates. That said, I'd really like to get to the bottom of the problem.

i'm not sure what is says exactly, but it's probably a software-related issue. look inside your Library directory and see if you can find a reboot or shutdown related .plist file. if you find something related, rename it to something like reboot-old.plist or shutdown-old.plist and then reboot see if that helps. it should create a new .plist file.

for the time being, at least you can reboot using the terminal.

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Message #25 - Posted 2005/05/25 - PeterG

On Wed, 25 May 2005 23:00:06 +0100, johnny bobby bee scribbled by his own authority...
(in a previous article):

PeterG wrote:

Twice I have used the REBOOT command and it worked OK on both occasions. Now,
what does that tell you? [not me 'cause I haven't a clue!] The reboot option
certainly solves an immediate problem as I nearly never have my machine switched off and only reboot when software dictates. That said, I'd really like to get to the bottom of the problem.

i'm not sure what is says exactly, but it's probably a software-related issue. look inside your Library directory and see if you can find a reboot or shutdown related .plist file. if you find something related, rename it to something like reboot-old.plist or shutdown-old.plist and then reboot see if that helps. it should create a new .plist file.

Will do.

for the time being, at least you can reboot using the terminal.

Exactly.

Once again thank you for your time, help and patience.

Regards

PeterG. (aka Lobo)

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Message #26 - Posted 2005/05/25 - Stephen C.

On Wed, 25 May 2005 7:58:23 -0700, PeterG wrote
(in message <3fji4eF84g8mU1@individual.net>):

On Tue, 24 May 2005 22:18:23 +0100, Stephen C. scribbled by his own authority...
(in a previous article):

[snip]

Open the G4 case, (carefully ground yourself by touching the metal case of the power supply), find and press the PMU (power management unit) ONCE.

I have seen more than one reference to pressing the PMU only once, but no explanation of what would happen if it were pressed more than once. Anyone care to elaborate?

Stephen C.

[snip]

Read on...

.. <http://docs.info.apple.com/article.html?artnum=95037>

Extract...
.. 2. Press the PMU reset switch (S1) once on the logic board. Do not press the PMU reset switch a second time because it could stop the PMU chip from responding.

So if someone did happen to cause the PMU to stop responding by pressing the button twice, they would need to get a new/better PMU?

Stephen C.

Message #27 - Posted 2005/05/25 - PeterG

On Wed, 25 May 2005 23:14:04 +0100, Stephen C. scribbled by his own authority...
(in a previous article):

On Wed, 25 May 2005 7:58:23 -0700, PeterG wrote (in message <3fji4eF84g8mU1@individual.net>):

On Tue, 24 May 2005 22:18:23 +0100, Stephen C. scribbled by his own authority...
(in a previous article):

[snip]

Open the G4 case, (carefully ground yourself by touching the metal case of the power supply), find and press the PMU (power management unit) ONCE.

I have seen more than one reference to pressing the PMU only once, but no explanation of what would happen if it were pressed more than once. Anyone care to elaborate?

Stephen C.

[snip]

Read on...

.. <http://docs.info.apple.com/article.html?artnum=95037>

Extract...
.. 2. Press the PMU reset switch (S1) once on the logic board. Do not press the PMU reset switch a second time because it could stop the PMU chip from responding.

So if someone did happen to cause the PMU to stop responding by pressing the button twice, they would need to get a new/better PMU?

Stephen C.

Sorry Stephen I can not add to what the Apple said in the article 'cause I don't know the answer. :-<(

Regards

PeterG. (aka Lobo)

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Message #28 - Posted 2005/05/26 - johnny bobby bee

turbogeek wrote:

When I try a shutdown via the terminal I also get a failure from DeleteTrap.kext which says it fails to load and this terminated the shutdown sequence.

.kext files are third-party kernel extensions. it may be some app you've installed or the permissions are wrong on some file. try running the repair permissions tool.

there's no place like ~
there's no place like ~
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Message #29 - Posted 2005/05/26 - johnny bobby bee

PeterG wrote:

Once again thank you for your time, help and patience.

You're welcome.
Have you tried repairing permissions, yet? It couldn't hurt and may actually help.

I'm a level 5 vegan -- I won't eat anything that casts a shadow. (remove _eh to email.)

Message #30 - Posted 2005/06/05 - jackiecurry

johnny bobby bee Wrote:

turbogeek wrote:

When I try a shutdown via the terminal I also get a failure from DeleteTrap.kext which says it fails to load and this terminated the shutdown sequence.

..kext files are third-party kernel extensions. it may be some app you've
installed or the permissions are wrong on some file. try running the repair permissions tool.

This is driving me nuts too. Trying to restart from terminal sends it into an unending loop of "Waiting for Reschedule Missed Tasks" after DeleteTrap.kext. Permissions repair ran for hours and got stuck. I recently installed Onyx, Norton virus update and the Apple quicktime & security updates. I've removed all traces of Onyx and that did not help. I wonder if this "third party kernel" can just be removed.

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Message #31 - Posted 2005/06/14 - Kees

Delete the folder 'Quickbackstartup' (part of 'speedtools')in the startupitems folder in the Library folder

Kees

Previously, PeterG wrote:

My G4 has recently refused to Restart or Shut Down from the Apple menu. All the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off. [the volume also sets to mute when I re-boot] I can get it to sleep using the Apple menu or the power key on the monitor. It only appears that the Restart and Shut Down which are the problems.

I have tried...

resting the NVRAM & PRAM -battery reads 3.7v [cmd-opt-p-r] [cmd-opt-n-v]
removing and re-seating the memory
removed all unnecessary peripherals
run Applejack for Tiger
run TechTool Pro v4.0.4
run DiskWarrior v3.0.3
started up in Safe mode

I _may_ have tried other things but just now can not recall.

I am unable to say when this problem was created as my machine is normally on 24/7 and did not come to light until I was forced to re-boot after installing some software -and yes I have checked it. Could it be the upgrade from 10.4 to 10.4.1?

Any help/ suggestions much appreciated.

[System- macintosh G4; OSX 10.4.1; 1GHz; 896 Mb SDRAM]

Message #32 - Posted 2005/06/14 - PeterG

On Tue, 14 Jun 2005 13:23:11 +0100, Kees scribbled by his own authority... (in a previous article):

Delete the folder 'Quickbackstartup' (part of 'speedtools')in the startupitems folder in the Library folder

Kees

Previously, PeterG wrote:

My G4 has recently refused to Restart or Shut Down from the Apple menu. All the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off.
[the volume also sets to mute when I re-boot] I can get it to sleep using the
Apple menu or the power key on the monitor. It only appears that the Restart
and Shut Down which are the problems.

I have tried...

resting the NVRAM & PRAM -battery reads 3.7v [cmd-opt-p-r] [cmd-opt-n-v]
removing and re-seating the memory
removed all unnecessary peripherals
run Applejack for Tiger
run TechTool Pro v4.0.4
run DiskWarrior v3.0.3
started up in Safe mode

I _may_ have tried other things but just now can not recall.

I am unable to say when this problem was created as my machine is normally on
24/7 and did not come to light until I was forced to re-boot after installing
some software -and yes I have checked it. Could it be the upgrade from 10.4 to 10.4.1?

Any help/ suggestions much appreciated.

[System- macintosh G4; OSX 10.4.1; 1GHz; 896 Mb SDRAM]

Thanks I'll try that for my next restart.

Regards

PeterG. (aka Lobo)

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Message #33 - Posted 2005/06/15 - morenuf

Previously, PeterG wrote:

On Tue, 14 Jun 2005 13:23:11 +0100, Kees scribbled by his own authority... (in a previous article):

Delete the folder 'Quickbackstartup' (part of 'speedtools')in the startupitems folder in the Library folder

Kees

Previously, PeterG wrote:

My G4 has recently refused to Restart or Shut Down from the Apple menu. All
the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off.
[the volume also sets to mute when I re-boot] I can get it to sleep using the
Apple menu or the power key on the monitor. It only appears that the Restart
and Shut Down which are the problems.

I have tried...

resting the NVRAM & PRAM -battery reads 3.7v [cmd-opt-p-r] [cmd-opt-n-v]
removing and re-seating the memory
removed all unnecessary peripherals
run Applejack for Tiger
run TechTool Pro v4.0.4
run DiskWarrior v3.0.3
started up in Safe mode

I _may_ have tried other things but just now can not recall.

I am unable to say when this problem was created as my machine is normally on
24/7 and did not come to light until I was forced to re-boot after installing
some software -and yes I have checked it. Could it be the upgrade from 10.4
to 10.4.1?

Any help/ suggestions much appreciated.

[System- macintosh G4; OSX 10.4.1; 1GHz; 896 Mb SDRAM]

Thanks I'll try that for my next restart.

You've done nearly everything already.

PMU controls boot up & power mangement issues.

At least try resetting the PMU (Power Management Unit) a button on the motherboard near the battery. Press it ONCE (too many presses may leave PMU in unhappy state and drain the motherboard battery in 1-2 days instead of 3-5 years). Restart.

If all else fails, try reseating ANYTHING that can be unplugged and reseated on the motherboard just in case some poor connection or oxidation exists. That inludes RAM, Hard drives, PCI cards, power connections, etc.

Last ditch attempt is , Archive & Install 10.4. Test if it works at 10.4 before installing 10.4.1 update again.

Good luck. Hope it works.

G'Day
Morenuf

morenuf@nobodyhome.com.invalid

Message #34 - Posted 2005/06/17 - PeterG

On Wed, 15 Jun 2005 01:16:49 +0100, morenuf scribbled by his own authority...

(in a previous article):

Previously, PeterG wrote:

On Tue, 14 Jun 2005 13:23:11 +0100, Kees scribbled by his own authority... (in a previous article):

Delete the folder 'Quickbackstartup' (part of 'speedtools')in the startupitems folder in the Library folder

Kees

Previously, PeterG wrote:

My G4 has recently refused to Restart or Shut Down from the Apple menu. All
the applications quit but I am left with the blue background and have to press the power button and hold down for a few seconds until it switches off.
[the volume also sets to mute when I re-boot] I can get it to sleep using the
Apple menu or the power key on the monitor. It only appears that the Restart
and Shut Down which are the problems.

I have tried...

resting the NVRAM & PRAM -battery reads 3.7v [cmd-opt-p-r] [cmd-opt-n-v]
removing and re-seating the memory
removed all unnecessary peripherals
run Applejack for Tiger
run TechTool Pro v4.0.4
run DiskWarrior v3.0.3
started up in Safe mode

I _may_ have tried other things but just now can not recall.

I am unable to say when this problem was created as my machine is normally
on
24/7 and did not come to light until I was forced to re-boot after installing
some software -and yes I have checked it. Could it be the upgrade from 10.4
to 10.4.1?

Any help/ suggestions much appreciated.

[System- macintosh G4; OSX 10.4.1; 1GHz; 896 Mb SDRAM]

Thanks I'll try that for my next restart.

You've done nearly everything already.

PMU controls boot up & power mangement issues.

At least try resetting the PMU (Power Management Unit) a button on the motherboard near the battery. Press it ONCE (too many presses may leave PMU in unhappy state and drain the motherboard battery in 1-2 days instead of 3-5 years). Restart.

If all else fails, try reseating ANYTHING that can be unplugged and reseated on the motherboard just in case some poor connection or oxidation exists. That inludes RAM, Hard drives, PCI cards, power connections, etc.

Last ditch attempt is , Archive & Install 10.4. Test if it works at 10.4 before installing 10.4.1 update again.

Good luck. Hope it works.

G'Day
Morenuf

I followed up on...

.. Delete the folder 'Quickbackstartup' (part of 'speedtools')in the

startupitems folder in the Library folder

and it seems to have done the trick.

Cheers and thanks to everyone who contributed.

Regards

PeterG. (aka Lobo)

Remove MEATFREEspamblock to reply to this vegetarian.

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