Q: POWERBOOK G4 problème met en veille tout seul

Hello!

Although your question appears in French, much could be understood to some degree without

the use of google Translate; though I did use it to see what it thought you said in your post...

The 'random sleep issue' had been one experienced by some users, moreso when the unit

was newer and reports more common at that time. The PMU (power management unit) reset

is among the most suggested cures to that kind of problem; others found hardware at fault so

had to get repairs. This may be a problem as the computer has aged and the Apple Store is

not necessarily able to get parts for these since they're vintage and essentially obsolete. An

authorized Apple Service provider, an independent shop with specialists who know these, may

be able to repair it and locate suitable parts from reliable sources;  to troubleshoot & repair.

•Resetting PowerBook and iBook Power Management Unit (PMU) - Apple Support

Sometimes, the logic board may be a cause of this kind of issue; other times, the top case with

the touch pad and keyboard (and other circuits) may be at fault. The unit needs a thorough test.

Could be the hard disk drive may be failing, but without a diagnostic test by an expert, that

may be difficult to judge and harder to rectify. Suggest you make backup copies of your work

and if you have not already own an external hard disk drive (FireWire works best) with its own

power supply, you could attempt to save content there. Also, a FW HDD with suitable chipset

in the  housing, can be used to run a system Clone from; if the internal HDD has failed. Clones

can be used to run their host computer; usually a utility software is used to make and test one

of these when the computer is healthy. Then you have a recourse when it is not.

•How to use and troubleshoot FireWire target disk mode - Apple Support

Sorry for not being able to reply in French. While my dad understands French, Latin, & other

languages, I only understand a little bit in a few non-english ones. Just as well, I don't mangle

more than one at a time!

I see a few links to similarly noted random sleep problems in the following search result link;

most are older & when they were newer, Apple stores were more able to resolve them directly.

•PowerBook G4 1.5GHz random sleep issues:

https://www.google.com/?gws_rd=ssl#q=PowerBook+G4+1.5GHz+random+sleep+issues+

If you have a second Mac with FireWire cable (and port) you may be able to access the hard

drive of this ailing PowerBook G4, if it will start in Target Disk Mode, and be seen by another

Mac as an external hard drive when booted in TDM. Then files you created may, perhaps, be

saved to another computer or to another external drive. A newer MacBook (intel) running no

later than Snow Leopard 10.6.8 with rosetta installed, could be used to access PPC based

applications, and so if set up correctly, you may be able to make use of a newer Mac; this to

be able to continue with some of projects you are working on now; w/ matching applications.

Anyway, sorry your PowerBook G4 1.5 has decidedly gotten tired when you need to finish work.

Hopefully you have access to some other computer, since the issue likely is hardware. Perhaps

someone else with ideas can see your thread and offer ideas where I have not said any...

Good luck & happy computing!

There are some do-it-yourself (DIY) online repair guides that may be of help

should you try & replace the internal hard disk drive or other components.

You would need to have the original OS X install-restore DVD for the OS X

version you have, to re-install a system; unless you had a working clone

in an external hard disk drive. In any event, the correct disk utilities for

setting up the new hard disk drive are on the bootable system DVD.

With the DVD in the optical drive, you can hold the C key on startup.

The computer will try to locate a startup disc, and should find the DVD.

However these portable models can be rather tedious to attempt a repair.

And without knowing the extent of the issue or failed component, results

may not be forthcoming. Also, some attempts to DIY repair have been a

cause of other damages resulting in harder to diagnose problems.

This site offers a few repair guides for certain models of Apple portable:

•Mac Laptop Repair Guides - iFixit: (in 5 categories of model series)

https://www.ifixit.com/Device/Mac_Laptop

There are 9 categories of PowerBook (only two with processor G4)

https://www.ifixit.com/Device/PowerBook

So perhaps your model is the one shown here; if not, identify yours before

attempting to use the info, and match the correct guide w/ your PB/G4.

•If yours is a 12"/15"/17" PowerBook aluminum 1.5GHz, this may be one:

https://www.ifixit.com/Device/PowerBook_G4_Aluminum_Series

Some other information may be found at powerbookmedic.com where some

repair info and links to possible part numbers appear in their retail site. For

parts that are no longer available, you may have a chore in finding right ones.

You could try & get a working PowerPC Apple portable already repaired and

try to access your projects and saved files from the problematic PowerBook.

Older repaired models are sometimes available from specialists who repair

them for a living; some of these are quite good at it, and may have older

vintage models for sale. Or they may be able to fix yours. The better ones

likely are not near you, so may require shipping the computer away to fix it.

wegenermedia.com is a fair site to look to, they fix computers, have parts

and that is what they do. Some models of older Macs appear for sale, too.

The PowerBook G4 computer would use an ATA/IDE or PATA (parallel ATA)

kind of drive and not to physically large. You could see what is offered by

resellers of Apple oriented replacement or upgrade parts. A 2.5" drive, if not

too thick, and of correct power spec, may be a match.

However if you do replace the hard disk drive, you'd have to re-install all of

the software, and the content of the old hard disk drive may be lost. A good

Apple trained service provider may be able to find what is really wrong, and

if it is the hard disk drive, save content from old one for you, to access after

the computer is running correctly again. A backup copy or clone could help.

If you have technical skills, and know how to replace tediously small parts in

portable computers, then this may not be impossible. If not, then you should

find someone who has experience in troubleshooting, to help back up what

ever can be from your current computer HDD, to some external device, and

then proceed with the repairs -- whatever they may be.

Could be the logic board in your computer may be at fault, if so a hard drive

by and of itself, would not resolve the issues as presented by the machine.

So hopefully you can locate someone with computer repair skills at a local

university or college, to help troubleshoot & repair your PowerBook G4.

Good luck & happy computing!