Re: PowerBook 15" - strange problems
- From: jmunkki@xxxxxxxxx (Juri Munkki)
- Date: Tue, 29 Nov 2005 01:38:05 +0200 (EET)
In article <d.langford-ya02408000R1411050948550001@xxxxxxxxxxxxxx> d.langford@xxxxxxxxx (Duncan Langford) writes:
>I guess that if it happens again - and gets too frequent - I'll have to
>take it to the nearest Apple dealer, and ask them to play with the RAM...
>sigh.
Last spring I bought a G4 upgrade for my PowerMac G4. It had a bad
cache on it and would frequently kernel panic after going to sleep.
Turning the cache off before sleep and back on after it helped, but
did not completely fix the problem. I had a system all set up to do
the cache disabling before and after sleep, but in the end I had to
return the card and get a new CPU. The new processor has worked flawlessly.
Detecting a slightly flaky processor cache can be really difficult. Trying
to get work done on a machine like that is downright risky.
I was lucky in that putting the machine to sleep with caches enabled
almost always allowed me to reproduce the kernel panic in under ten minutes,
(usually about 2-5 minutes) so I knew there was a problem. For some reason,
sleeping with caches enabled made the crash occur about 100 times more
quickly.
My usual test was to boot up, put the machine to sleep, launch iTunes
and make it play my web radio station. When the sound started looping,
I knew the machine had crashed and I could check the time from the
frozen iTunes display.
--
Juri Munkki - http://www.iki.fi/jmunkki - Windsurfing: Faster than the wind.
.
- References:
- Re: PowerBook 15" - strange problems
- From: John Johnson
- Re: PowerBook 15" - strange problems
- Prev by Date: Re: iBook hang on logout/shutdown
- Next by Date: Re: strange battery problem
- Previous by thread: Re: PowerBook 15" - strange problems
- Next by thread: Re: iPOD Nano - External Hard Drive
- Index(es):
Relevant Pages
|
Loading
