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TICKET ARCHIVE -> ibook freezing

blacknosey - Jan 29, 2008 - 3:20 pm

I am using an iBook, PowerPC G4, Tiger 10.4.11, 1.07 ghz,
1GB DDR SDRAM. New battery 2/2007
Start up is OS X (rarely use OS 9 start up)

After using my iBook for about 90 minutes, it suddenly freezes.
The screen does not go blank. It freezes on the page I am on with the colored circle appearing but frozen.

I shut it down. When I go to start up again it starts up sometime later it starts up fine.

What could be making it freeze?
How can I correct that problem.
Thanks

R0b010146 - Jan 31, 2008 - 9:29 am

Try repairing and verifying your disk permissions in disk utility.

That may make your laptop faster.

blacknosey - Jan 31, 2008 - 12:33 pm

I have tried repairing and verifying the disk permissions in the disk utility before and it did not resolve the ibook from freezing.
Any other suggestions?
Thanks

R0b010146 - Jan 31, 2008 - 2:50 pm

Ok.

Try booting to safe mode.

See if the problem persists.

Try zapping p-ram. holding Apple+Option+P+R when you first turn on the machine until you hear three start up chimes.

blacknosey - Feb 1, 2008 - 4:20 pm

Tried booting to safe mode.
Problem persists.

Will try pram next

blacknosey - Feb 1, 2008 - 10:51 pm

I zapped the p-ram.

I was on my computer for 105 minutes.
A buzzing began. I quit what I was doing.
Then the round colored ball started turning a few seconds then
froze along with computer.

blacknosey - Feb 1, 2008 - 10:53 pm

I left the computer off for 5 minutes.
Then it will start again with out problems.

I just would like to know why it is freezing.
I looked in the library/logs/crash reports and there was nothing noted.

R0b010146 - Feb 4, 2008 - 2:43 pm

Have you installed any "heavy" software, which would use a lot of RAM and processor speed, such as Adobe Photoshop, Filemaker, etc?

blacknosey - Feb 4, 2008 - 8:36 pm

I did install Hoyle Games (for OS X)-867.8 MB.

Do you think the noise that comes on before the freeze is the fan?

My iMac at present
Capacity: 37.1 GB
Available 21.1 GB
Used 16.1 GB

Sue

R0b010146 - Feb 5, 2008 - 10:27 am

Are you doing anything in particular when the freezing occurs?

if not, try this.

Boot to Open Firmware.

Turn on the machine and immediately hold down Apple+Option+O+F until you see a white screen with black lettering.

then type reset NVRAM

and press enter.

then type in reset all

and press enter.

blacknosey - Feb 5, 2008 - 9:18 pm

I turned on the machine as you noted.

When I typed reset NVRAM, it says word unknown
When I typed reset all, it says word unknown
I went ahead and mac-boot

It froze again in about 90 minutes.
I turned it off then tried to turn it back on and got the kernel panic pane.
I turned it off for about 10 minutes then the computer started up okay.
Sue

blacknosey - Feb 5, 2008 - 9:18 pm

R0b010146 - Feb 6, 2008 - 9:22 am

It may be

Reset NVRAM

or

Reset nvram

try things like that,

blacknosey - Feb 6, 2008 - 10:36 am

I tried both.
It still says: reset, unknown word

R0b010146 - Feb 7, 2008 - 9:57 am

Try Reseting your PMU.

hold shift+ctrl+option+apple+power for ten seconds. then turn on the machine.

blacknosey - Feb 9, 2008 - 6:39 pm

I tried resetting the PMU.

My computer stayed on two hours without a freeze.

I want to use my computer on Sunday for several hours and see that it continues not to freeze.
I'll get back to you Sunday night
Thanks

R0b010146 - Feb 11, 2008 - 5:17 am

Monday Morning...

how did it go?

blacknosey - Feb 11, 2008 - 12:00 pm

For three days now it has not frozen.
Thanks so much for your help.
If it happens again I'll try resetting the PMU again
(unless you see that as a problem to do too often).

Thanks again for your patience in helping get my ibook working more efficiently.
Sue

R0b010146 - Feb 11, 2008 - 2:22 pm

The only problem is that is resets your unsaved settings, other than that you should be fine.