Re: Help diagnosing an G4 iBook problem please.



john brennand <john.brennand@xxxxxxxxxxxx> wrote:

Jon B wrote:
john brennand <john.brennand@xxxxxxxxxxxx> wrote:

My bro' in law has just brought his 1.33MHz G4 iBook for a health check.
I fires up ok, everything is normal for about 10 minutes and then it
just freezes. The clock is stopped, the mouse tracker moves but no keys
work nothing ! I have to shut down via the power button.

I have changed the RAM chip and reseated the Airport card, and the
battery is pretty new.

Do you think it is a hardware problem - if so what are the likely
suspects to check out ?

If the screen starts going a few minutes later - logic board. If it
doesn't it still could be the logic board. Could also be the AP/BT card
(try running without), or the HD.
Just a thought...

Would booting from the startup/install DVD be informative as to whether
the problem is hardware related ?

I.e. if there is a problem with hardware then would it freeze when
booted from disk ? If a system problem it should run ok from disk? -

Probably not. I've seen dead HDs stop systems from booting from CD as it
frigs up the whole bus. Usually I pull the HD and boot it up from an
external drive or other ppc mac to completely elimate it.
--
Jon B
Above email address IS valid.
<http://www.bramley-computers.co.uk/> Apple Laptop Repairs.
.



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