Anyone here know anything about Tyan S1598cs and G400?

[chucky2]

Well, I performed a couple of re-installs under 98SE this past weekend, but got the same results. I'm still thinking this is an AGP issue, whether through the BIOS settings or with the G400.

nayaman- Exactly what BIOS settings are you running to make your card stable? I have (since the start) the most recent BIOS rev.'s for both the motherboard and the G400.

Possibly I'll have more time Thursday night and/or this weekend to experiment.

Thanks!

Chuck

[kjliew]

I have yet to see any IRQ list provided in Win98. That will really help. Personally, I don't even bother about BIOS settings. I have given you a few BIOS settings that you may need to worry about in my previous posts in the thread. I can set everything else in the BIOS to be the optimum settings, fastest memory/cache timings and any performance enhancing options that I can think of. Nothing screwed. I even poke into the chipset registers to enable Byte Merge, Read-Around-Write, PCI/AGP Write Post buffer etc. which are not available in my BIOS, things still work.

[chucky2]

kjliew- OK, this Thursday night I'll post the IRQ assignments for ya. I can already tell you though, after I load the Matrox drivers, the G400 will be alone on IRQ 11. After I add the NIC and Sound Card (don't have to do this to produce the sponataneous reboot problem) the G400 will still be isolated on IRQ 11.

As far as BIOS settings go: I'll post exactly what is enabled/disabled in the different screens in the BIOS.

I know the problem is not the power supply, RAM, RAM timings in the BIOS, or Vcore to the CPU, or the AGP slot, since all work fine with a Geforce DDR; I think we can all agree that a DDR Geforce would be the most likely thing to make this system crash if the problem was related to the power supply, RAM, CPU, or AGP slot.

So, that leaves the G400 and/or the Matrox drivers.

Does anyone know of any whitepapers on what gets enabled/disabled on the Matrox card when the drivers are loaded? I ask this because the reboot problem doesn't happen until I load the Matrox drivers in Win98SE (pick a set, they all cause the same problem).

Possibly I could DL the Matrox utility that forces AGP 1x in the G400 BIOS and see if that works.

Thanks for the help all, it is appreciated!

Chuck