Somebody had this problem in the past. Unfortunately solution is not known 🙁

Yeah, saw that thread too, wonder if he finally managed to get it working. 😒

However I did a little progress - upon one logged boot up, Windows managed to start, although in 16 colours. The device manager showed that the device is working and the drivers are okay, but there's a memory range conflict with the PCI-to-PCI bridge.

Unfortunately manually changing the values to another region (that clearly shows 'no conflicts') did nothing, as the PC still boots into a black screen while I try to set the colour depth and resolution to something else than 16 colours and 640x480. Is there a way to properly set these values, either from Windows or BIOS?

What's via 4in1 drivers did you used?

I've tried three different VIA 4 in 1/Hyperion chipset drivers - 4.35, 4.56 and 5.14 - however they all produced the same result...

I would try another Windows 98. I mean there are OEM and Retail versions of Windows 98 se. Sometimes they give the same PnP device different range of i/o , addresses .

Okay, I actually managed to find a dirt cheap VIA Epia board (the EN10000G one), as suggested in the previous thread. Even more amusingly, it looked like both boards had pretty much the same BIOS settings. Used the same Win98 disk, Hyperion 4 in 1 and CN700/S3 display drivers.

And guess what? Works like a charm - display, Direct3D, accelerated games and all that fluff...

So yeah, case solved - Jetway graphic chip (and most likely the CN700 in the rest of the bunch that used VIA chipsets, like ECS or MSI) is incompatible with Windows 9X, unless you somehow get the original (and most likely modified) drivers first. To save any future headaches (especially if you wish to build a mini ITX retro gaming PC like me), just go with the VIA Epia board instead of the alternatives.

Hope sometime we can have a solution. I have a thinclient with the same problem, same black screen in win98.. Thinkin about WinME but Dos games ddn like too much 😒

Not sure if this will help but I have a different VIA board EPIA-SP (800MHz) and I was having lots of problems until I disabled the USB ports and removed the USB folder from the chipset driver, and used a specific chipset driver and video driver. (I can then later reactive the USB and install those usb-stick drivers NUSB? and use the USB ports that way).

I use these drivers (chipset and VGA): https://www.viatech.com/en/support/eol/epia-sp-series-eol/ (they say XP but include W98 too).