I suffered some strange lockups in GPL and after A LOT of playing around
with BIOS and clock settings I have found out that the reason for that
was the 75Mhz mainboard speed (and thus 37.5Mhz PCI bus speed) I was
using.
What happens is that the picture in GPL freezes while the sound
continues as normal and I can still hear the car reacting to my
input on the wheel.
It is not a heat related problem as the lock up sometimes occurs before
I have completed a single lap. Neither it is a memory speed problem,
since I have already tried to reduce the access speed to the main memory
but that didn't solve my problem...
Also it has nothing to do with the internal processor clock, since the
same lock up happens at 75x3.5 (262.5Mhz), which is below the speed my
CPU is rated.
As soon as I reduce mainboard speed to 66Mhz (PCI 33mhz) everything is
fine.
So, my question is: Is it at all possible that my Diamond Monster 2 8MB
can't handle the 37.5 Mhz PCI bus speed ?????? It's almost the only
possible reason left, but I still can't quite believe it, since it is
not exactly an old design..... On top of that I have to add that GPL is
the only game I have this problem with. Every other 3dfx/glide
application runs just fine at the higher bus speed....
I'd be glad to hear from anyone who had a similar problem or (even
better) from anyone who has solved it... :-)
And just FYI, here's the hardware I use:
Intel P2 266 Mhz / Abit LX6 board / 64 megs SDIMM RAM
Matrox Productiva G100 AGP 8MB / Diamond Monter 3D II 8MB
No PCI card other than the Monster in system.......
Anybody ?
Cheers !
Cris