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Model A1013, A1052, A1085, or A1107 / 1440x900 screen resolution

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G4 1250 MHz sleep and boot problems

Hey ifixit community,

after searching for my issues with my powerbook g4 for ages now I thought I might gonna ask you now ;)

I have several weird problems with the powerbook,

so first, I installed Leopard on it and the disc for the installation needed about half an hour to boot, but the installation itself went without any further problems.

But the boot time of the Powerbook is now about 6 min. long. When it is done booting the system works fine and smooth. The next problem is, that when I try to put the powerbook into sleep mode and close the lid, it won´t get into sleep mode, but seems to be dead.

When I then open it, the screen is black and it does not wake up, whatever I do. I then have to restart the powerbook and have to wait again 6 min....

The really weird thing about this problem is, when I did a fresh install of Mac OS X Tiger 10.4.0 boot time was fine and sleep mode worked like a charme. However, when I updated from 10.4.0 to any higher system like 10.4.1 and higher, the problems with the sleep mode came back, but at least boot time was more or less okay.

So all in all:

-Tiger 10.4.0 boot: fine ; sleep mode: fine

-Tiger 10.4.1 and higher boot: fine ; sleep mode: failed

-Leopard 10.5 boot: about 6 min. ; sleep mode: failed

I have installed 2 GB of DDR memory and my machine has an 1,25 GHz G4 and a 160 GB Samsung HD.

I really have no clue what to do...

So I would really appreciate your help!

greetings V. Creon

Answered! View the answer I have this problem too

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Were the DVD's you used to upgrade Retail (black) or for your specific computer (grey)? If not this could be a source of your problem as Apple software has drivers and firmware that usually don't work well in machines they weren't made for.

If the DVD's were correct try removing first one then the other memory sticks. Also try them in one and then the other memory sockets. I hope this helps you.

I found this answer for a previous question that may be of some help to you.

My G4 is too slow..

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2 Comments:

Hey, first, thanks for the fast reply!

I used black retail dvd´s so that shouldn´t be the problem i guess.

I removed and changed both memory sticks and even put in the original ones, but no change :/

The only idea I have got is, that the superdrive might have a failure, so the installation caused the problems. But then, if it was that, the problem shouldn´t be there, when I update via internet from 10.4.0 to 10.4.1...?!

However, maybe thats important:

When I boot up the powerbook it boots up normally until the blue screen when the OS should come up, but from then on, it still needs about 4 min. ...

Thanks V.C.

Oh, and I just found out, that when I boot in safe mode, boot time is nearly normal, about 1-2 min. but sleep mode still failed..

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The fact that your boot time is nearly normal would lead me to believe the problem is software not hardware. Boot from the 10.5 disk and goto disk utilities and run disk repair until it reports no trouble found.

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