Regarding the TNT2, try an older driver. While the newe3st Win9x nvidia driver may support it, weird things sometimes happen when the driver is years newer than the card.
https://www.philscomputerlab.com/nvidia-windo … er-archive.html
Try something between 6.31 and 23.11 just to see if it cures the crashes.

Regarding the SB16, there may have been a BIOS setting to reserve an IRQ for ISA that when you reset to defaults, switched it from enabled to disabled. Look for something like that.

Good luck, and welcome! 😀

Well first off, thanks for the quick reply and your welcoming!

I've already tried setting the IRQ and DMA numbers to those supposedly used by Windows (in Device Manager it says the IRQ port is 9 and DMA 1. Set the BIOS up like that and nothing changed.

I'm currently using Detonator 3 I think, will try other drivers sometime later.

I think the interrupts that Win98 chooses are virtual and don't make sense in a DOS world. In your BIOS, just reserve IRQ 5 instead of 9. IRQ 9 I believe is for VGA, which may explain both of your issues! The only other thing I can suggest and I'm sure you've already done it is carefully read through each BIOS screen and see if anything pops out at you.

Yeah, definitely take off these crappy nvidia drivers !
The latest good driver for the riva TNT up to the geforce 4 is the 45.23 driver for windows 98. Other drivers will always cause issues.

As for the sound card, go into the device manager, and set it to : Address 220, IRQ 5 or 7 (if you put the 7th irq, you should disable the printer port in the BIOS) and DMA 1 (and also set the other DMA to 5). That's what most sound blaster cards are set to because that's works the best

Alright,

I disabled the printer ports which allowed me to set the IRQ value to 5 and re-enabled the sound card. I also got the NVidia drivers you mentioned and after a lot of fiddling I made it work. I then tried a 3D game to see if it really could function properly but it crashed after about 30 minutes... I guess I'll just get a different graphics card.

All in all thanks for the advice, really appreciate it!

What game did you use and what's the actual directx version you installed ? (PS: you don't need to disable the printer port to use the IRQ5 except if your printer port is actually set to irq5, but that's quite unusual)

Oh and also, which motherboard are you using ?

It was actually not the printer port I disabled, it was being used by some USB to ISA controller which I somehow managed to change to IRQ4. Well, I wouldn't have used them anyway.

I have DirectX9 installed and my motherboard is an ASUS P2B

DirectX9 creates some problems under windows 98 as well, use Directx8 instead ^^