[BUG] NSSI hangs AMI WinBIOS 486 machine!

[ppgrainbow]

If you want me to add emulation of the 486DX/20 and i486SX2/66, then show me some actual evidence that they exist - a photo would do...

Here you go:

1. https://en.wikichip.org/wiki/intel/80486/486dx-20
2. https://en.wikichip.org/wiki/intel/80486/486sx2-66

Unfortunately, I cannot find any photos of what the 20 MHz 80486 and 66 MHz 80486 SX2 look like although they do exist.

[omarsis81]

No photos in those wiki entries...

[SarahWalker]

Yeah, that's not really solid evidence that they exist. They may have been announced, but that doesn't mean they were ever actually available to buy.

[UPerschke]

http://www.chipdb.org/img-intel-a80486s ... s-6750.htm

DX20DPR66 did exist as 486 overdrive but actual clock speed is 66 Mhz: http://www.cpu-museum.de/?m=intel&f=overdrive+cpus

[gen_angry]

If you want me to add emulation of the 486DX/20 and i486SX2/66, then show me some actual evidence that they exist - a photo would do...

Edit: beaten on the 486SX2 but to be fair, that's an engineering sample. It doesn't mean that they were specifically sold as retail.

However, for the 486DX/20 I couldn't find any picture proof. The lowest 486DX I could find was a 25mhz part so maybe this was a weird overdrive CPU?

[SarahWalker]

Interesting that that 486SX2/66 is an engineering sample, and that it's the only Intel SX2/66 on that site. Doesn't really suggest a wide release to me.

[ppgrainbow]

No photos in those wiki entries...

I tried to find the photos on Google, but there were none available.

[UPerschke]

There was a commercial i486SX2-66, but I guess it was never widespread. Compaq used it in one of their Presarios: https://www.youtube.com/watch?v=Fvv77yhUrVA
Check 11:00 where he shows the BIOS setup.

And there were people who had trouble using certain stuff due to a missing FPU: http://damnsmalllinux.org/static/act-ST/f-5/t-5570.html

Afaik Intel just had crippled down 486DX2-66s to max their yield.

[ppgrainbow]

There was a commercial i486SX2-66, but I guess it was never widespread. Compaq used it in one of their Presarios: https://www.youtube.com/watch?v=Fvv77yhUrVA
Check 11:00 where he shows the BIOS setup.

And there were people who had trouble using certain stuff due to a missing FPU: http://damnsmalllinux.org/static/act-ST/f-5/t-5570.html

Afaik Intel just had crippled down 486DX2-66s to max their yield.

Thank you for providing a video of a commercial for the Intel 486SX2-66 processor even though it was never popular.

Maybe support for the i486SX2-66 MHz processor configuration might be added after all.

[omarsis81]

There was a commercial i486SX2-66, but I guess it was never widespread. Compaq used it in one of their Presarios: https://www.youtube.com/watch?v=Fvv77yhUrVA
Check 11:00 where he shows the BIOS setup.

And there were people who had trouble using certain stuff due to a missing FPU: http://damnsmalllinux.org/static/act-ST/f-5/t-5570.html

Afaik Intel just had crippled down 486DX2-66s to max their yield.

Just at the minute 11:00 it shows the 486 SX2@66, but how do we know for sure it was made by INTEL and not AMD?

Edit: as a matter of fact, if you Google Images "Presario CDS520" you will find this: http://mail.lipsia.de/~enigma/neu/pics/486SX2-66.jpg.

AMD 486SX2-66
Year of manufacture: 1994
no FPU included
This is a cheap 486 CPU for desktop applications that do not use the FPU.
It was used in the Compaq Presario CDS520.

From "http://mail.lipsia.de/~enigma/neu/pictures.html"

[UPerschke]

Thanks for pointing that out. Strange. I can remember having seen a non-ES i486SX2-66 in at least one of those.