> Without Nemisis in 256 colours & 720 * 544 I'm getting Gembench results of
> Graphics 335%, CPU 530%, Average 387%. With nemisis and same set
> up (normally about 5 minutes running time, although on a few occasions
> several hours!) The Gembench results are: Graphics 428%, CPU 658%, Average
> 489%, so as you can see it makes a considerable difference. Toolkit
> settings don't appear to be the issue, either the system runs OK or not, I
> have tried all possible valid combinations, and have spent 2 weeks on this!
Time dependent system instability is not very likely to be caused by the
software you're running, but rather the hardware itself (overheating etc).
If I understand you correctly, you're running the '040 at 40 MHz and the
rest of the Falcon at 20 MHz when you turn on the Nemesis. Most Falcons
apparently work well at that frequency, but that does not mean that the
AB040 does.
Normally you should have a 32 MHz '040 on the board and that number means
that Motorola won't guarantee that it will work at a higher frequency.
If it does, you might still shorten its lifespan and random problems might
appear.
So, you should not expect to be able to run at 20/40 MHz.
That said, I seem to remember there being some way to run the system at
20/20 MHz (half the speed for the '040), which would probably be OK.
Naturally, if the problem is not with any of the actual chips, you might
be able to get everything to run well at the higher speed by adding extra
shielding, grounding etc.
--
Chalmers University | Why are these | e-mail: rand_at_cd.chalmers.se
of Technology | .signatures | johan_at_rand.thn.htu.se
| so hard to do | WWW/ftp: rand.thn.htu.se
Gothenburg, Sweden | well? | (MGIFv5, QLem, BAD MOOD)
Received on ma. april 27 1998 - 18:32:00 CEST