Hmm. I did notice that the problem started after I upgraded from
10.2.4 to 10.2.8. I know the beige G3's had this problem also, on mine
that fix has worked very well (No black screens in about a year or so)
I'm going to try that right now.
-Cyrus
PS. I also checked MacTracker, and it says the Rev. A G3 iMacs only
accept 256Mb of ram... I was about to buy two 256 ones from someone on
the LEM swap, but should I just get two 128's? I am pretty sure I have
a Rev. A iMac, since on the motherboard it doesn't say the revision.
On Mar 14, 2009, at 5:35 PM, Kris Tilford wrote:
>
> On Mar 14, 2009, at 5:21 PM, Cyrus wrote:
>
>> Well, I posted about my G3 Bondi iMac before, but now I've
>> encountered
>> a different problem.
>> Here are the specs:
>> 233MHz
>> OSX 10.2.8
>> 92mb RAM.
>> Here's the problem:
>> It runs fine for a while, (5-15mins) then, the display goes black,
>> the
>> power light goes yellow (like it does when it sleeps) and no amount
>> of
>> coaxing will wake it up, I'm pretty sure it just crashes. I have to
>> pull the power cord out. Has anyone had this happen before? What's
>> the
>> most likely cause?
>
> This is a known issue:
>
> <http://docs.info.apple.com/article.html?artnum=25564>
>
> It's been written about extensively on the Apple Discussion>Older
> Hardware>Beige G3 section. There really aren't any good solutions for
> the Bondi because it lacks any way to add a Radeon video card, which
> is the normal solution for this issue that affects the built-in Rage
> video only.
>
> You have too little RAM in the Bondi for using OS X effectively. One
> possible solution is to stop upgrading at 10.2.6 because it was a
> video system overhaul that effects 10.2.8 forward thru 10.4.11.
>
> Also, if you had more RAM this would probably make the black screen
> lockup occur MUCH less often because the causal factor has something
> to do with the way the video interacts with the HD read/write
> activity. The harder the HD is working, the more likely to experience
> the black screen lockup. You need a lot of HD freespace for OS X, and
> at least 2GB freespace for Jaguar. If you have less freespace, the HD
> will work harder and cause this issue more often. There is NO solution
> to the lockup other than a restart, normally a Force Restart using the
> Ctl-Cmd-Pwr keys. With max RAM, and perhaps a HD with a larger buffer
> or higher speed, you'd probably minimize the HD read/write cycles so
> the black screen would occur less often. On a Beige G3 with over 512MB
> RAM and 10.4.11 the black screen lockup would occur about once-per-
> week with 4-8 hours usage per day. Also, if your Bondi only has the
> 2MB VRAM, get the option 4MB VRAM chip to up the VRAM to the max. 6MB.
>
> Hope this helps a little, but there really isn't any totally good
> solution. You can only minimize the occurrence.
>
>
> >
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