If the BIOS doesn't have the option in question, then it seems to me that you either need a BIOS update, or whatever you were reading relates to different hardware.

In any case, if WPCREDIT works in Windows, and you are triple-booting your computer, why do you need something that works in DOS? Since it's the BIOS, even if you change the setting in Windows, the change will still be applied if you reboot into DOS afterwards.

When I reboot the settings are gone. So I have to set those in DOS separately. (and that's good, because if you screw something up in your settings, they are gone after a reboot).

Don't think that there are other BIOS version who support this function. Just because it's a thin client running XPe, and not ment to run DOS. A custom BIOS could do the trick, but didn't find any.

A VIA tool would be nice.

Can you mod the bios? I know Modbin can unhide settings in Award Flash BIOSes. What type of BIOS does that HP use?

It is an Phoenix AwardBIOS. So.... let me try that one... 😁

Just found this site... interesting tools: http://www.bios-info.de/download/dlprgs.htm

Roman78 wrote:

When I reboot the settings are gone.

But BIOS settings by definition do not go away when you reboot. Further examination suggests that WPCREDIT edits the PCI Configuration Register, which is not really the same thing. Are you actually able to change this particular setting you're looking at in Windows using WPCREDIT?

I think I saw something about a DOS utility for setting PCI registers when I was reading about SB Live cards, but at the moment all I can find is serren.exe , which is specific to Intel chipsets.

Oh, that's right, it was PciSet. There's a link to it (and an example) here:
Re: Assistance needed for ESS Solo-1 DOS support

I did not tested WPCREDIT on this one yet. But I tested MODBIN, but somehow I cant figure out how it's working.

I downloaded version 4,5 and 6 from here: http://www.bios-info.de/download/dlprgs.htm both asking for a bin file. So I downloaded AWDFLASH899 and saved the bios to a bin file. But 4,5 gives a Checksum error and 6 sais it's not a version 6 bios.

Roman78 wrote:

I did not tested WPCREDIT on this one yet.

I don't understand. You said:

Roman78 wrote:

When I reboot the settings are gone.

So what settings did you change?

You realize you can irrepairably damage your motherboard with MODBIN, right?

I used wpcredit on another mainboard to change some memory timings. That was a MSI board, Dual PIII 933 whit RIMM and awful timings, memory was as low as PC-133.