For a lot of these earlier 440BX boards, the proper answer is "check the VRM controller chip".
Of course, BIOS might need updating or modding to add the required microcode, but the main deal is checking if the voltage regulator is able to properly read the VID pins from the CPU slot and output the correct voltage range. In the case of the MS-6119 Ver 1.1, you need to check this chip in particular (see attached picture), the related datasheet will tell you if it can provide the 1.7-1.8V needed by a 1 GHz Coppermine CPU.
In the case of my specific board, the SC1152CS VRM controller can output in the 3.5-1.8V range and it will shut down the board if an unsupported VID pattern is detected. For more details about the chip's specific VID decoding, check out the official datasheet https://www.digchip.com/datasheets/download_d … number=SC1152CS

If your specimen doesn't meet the right voltage requirements, you have 3 options:
1. With enough electronics and SMD soldering skills, you might be able to replace the chip with a pin-compatible spare supporting Coppermine VIDs
2. Some specific Slotket adapters have an onboard VRM, which bypasses the problematic on-board regulator
3. Enjoy Katmai or Mendocino 😀

zago27 wrote on 2021-08-15, 13:04:

For a lot of these earlier 440BX boards, the proper answer is "check the VRM controller chip". Of course, BIOS might need updati […]
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For a lot of these earlier 440BX boards, the proper answer is "check the VRM controller chip".
Of course, BIOS might need updating or modding to add the required microcode, but the main deal is checking if the voltage regulator is able to properly read the VID pins from the CPU slot and output the correct voltage range. In the case of the MS-6119 Ver 1.1, you need to check this chip in particular (see attached picture), the related datasheet will tell you if it can provide the 1.7-1.8V needed by a 1 GHz Coppermine CPU.
In the case of my specific board, the SC1152CS VRM controller can output in the 3.5-1.8V range and it will shut down the board if an unsupported VID pattern is detected. For more details about the chip's specific VID decoding, check out the official datasheet https://www.digchip.com/datasheets/download_d … number=SC1152CS

If your specimen doesn't meet the right voltage requirements, you have 3 options:
1. With enough electronics and SMD soldering skills, you might be able to replace the chip with a pin-compatible spare supporting Coppermine VIDs
2. Some specific Slotket adapters have an onboard VRM, which bypasses the problematic on-board regulator
3. Enjoy Katmai or Mendocino 😀

Thanks, that was very helpful. My VRM is a 1.8v min voltage looking at the data sheet so I got a slocket with voltage jumpers so I could just do a minor overvolt at 1.8v manually.
Had I not known, I'd probably ended up with one without voltage jumpers which wouldn't have worked 😀
Thanks again!

can someone tell me if I can use 1ghz + PIII CPUs on my board?

Apollonios wrote on 2021-11-01, 02:55:

can someone tell me if I can use 1ghz + PIII CPUs on my board?

Component modding aside, the collective answer seems to be maybe!...see this post Re: “New” Windows 98 build

Official support from MSI only covers later board revisions with the stated blue sticker on the (Winbond) IO chip, though these boards also have uprated VRMs - in my case in the pic below, both have the SC1153CSW which supports the later VRM 8.4 spec and thus Coppermines