[Cube] Need help with Cube gfx problem

[John Bryan]

I had the same problem a few months ago on a G4/450 Cube with BTO  
Radeon (w fan).

This problem I found is apparently referred to as the Grey Striped  
Screen of Death.

I replaced the Radeon and the problem stopped.  Swapped in with a  
NVIDIA GeForce2 MX, still with 32MB, so about like what I had with  
the Radeon, no problems since.  No fan on this Cube, either.

The thing just crapped out, apparently.  I had lubed the fan axle up  
on the Radeon a couple of years ago and that stopped a shrieking  
problem it was making, and the temp stayed down, but then a few  
months ago I started getting these GSSODs.  Did some digging, asked  
around here, and that's what I came up with.  It would happen only  
when I did something with the mouse, and it would do just like you  
describe.

jb

On Oct 08, 2005, at 9:40 PM, Dan MacMillan wrote:

> Hi everyone ...
>
> I have had a G4 Cube for a number of years and it's worked flawlessly
> until now, and I need some help.
>
> A few weeks back the system began displaying the black "You must  
> restart
> your computer" screen. If I attempted to reboot immediately, it would
> revert to that screen before completing the reboot, but if I let it  
> sit
> for a while, it would reboot successfully and work for a while before
> displaying the screen again. This problem seemed to get progressively
> worse, and the time I was able to actually use the system before that
> screen popping up lessened to a few minutes.
>
> I suspected this was a thermal issue of some sort, and when I  
> opened the
> Cube and discovered the fan on my nVidia GeForce 3 was seized, I  
> thought I
> had found my problem. I pulled it, and reinstalled the original  
> Radeon,
> and the machine booted normally. However, after using the machine  
> for 15
> minutes or so, the gfx flipped out, and this is what I saw:
>
> http://www.geocities.com/dan_macmillan/gfxproblem.jpg
>
> The small square near the middle is the cursor, and it moves with  
> the mouse.
>
> After using the computer for times that vary between 5 minutes and  
> an hour
> this screen always reappears. What's interesting is that only the  
> gfx are
> messed up; the Cube contines to run as normal in the background.
>
> The room is always kept to 72 or 73 degrees.
>
> Does anyone have any suggestions as to what might be causing this?
>
> Thanks!
> -Dan
>
> _______________________________________________
> Cube mailing list
> Cube at listserver.themacintoshguy.com
> http://listserver.themacintoshguy.com/mailman/listinfo/cube
>
> Listmom is trying to clean out his closets! Vintage Mac and random  
> stuff:
>          http://search.ebay.com/_W0QQsassZmacguy1984
>