Wow ! I was thinking the same a few times over the last few weeks. Great idea ! Was looking thru the the Amptron archive yesterday and found that most of the mirrors did not have all the stuff that it could have. One of the problems is that some of the Archive dates are not as complete as some others. I think we should include multi links to same IF there are differences. Just a thought as if linking motherboards there will be many links, to keep it simpler just a few links that appear to cover what the OP wants. just a suggestion..
edit:

Link to info on Amptron board thru Feb 1999 http://web.archive.org/web/19990225144208/htt … tml/main_fr.htm Link to info on Ampt […]
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Link to info on Amptron board thru Feb 1999
http://web.archive.org/web/19990225144208/htt … tml/main_fr.htm
Link to info on Amptron Boards thru 2004
http://web.archive.org/web/20040607173300/htt … ww.amptron.com/

I think this website deserves to be on this list, it's a truly useful resource for all P2B owners. It was shut down recently.

The ultimate processor upgrade guide for all Asus P2B and P3B boards
https://web.archive.org/web/20190823065341/ht … pgrade_faq.html

computerguy08 wrote on 2020-04-24, 16:50:

I think this website deserves to be on this list, it's a truly useful resource for all P2B owners. It was shut down recently.

The ultimate processor upgrade guide for all Asus P2B and P3B boards
https://web.archive.org/web/20190823065341/ht … pgrade_faq.html

I was about to mention this one as well, though a number of the Wayback links within it are gone, like ACPI support which can be found here

https://web.archive.org/web/20160819073828/ht … CPI_dual-mb.htm

I wish the vintage price watch search for slot A athlons in late 2001 could be linked 😉

I was considering upgrading at that point

rmay635703 wrote on 2020-04-24, 20:25:

I wish the vintage price watch search for slot A athlons in late 2001 could be linked 😉

I was considering upgrading at that point

Looks like they changed something in June of 2000 as it doesn't actually bring anything up after May of 2000.
http://web.archive.org/web/20000520060138/htt … pricewatch.com/

I had this website backed up on my hard drive, so I wondered if I could find it on Wayback Machine. And I did find it!

It contains very useful information about many PC parts from the 90s (some unknown ones as well).

Total Hardware 1999 - information about motherboards, hard drives, sound cards and more!
https://web.archive.org/web/20041119124347/ht … h99.dyndns.org/

computerguy08 wrote on 2020-04-29, 18:21:

I had this website backed up on my hard drive, so I wondered if I could find it on Wayback Machine. And I did find it!

It contains very useful information about many PC parts from the 90s (some unknown ones as well).

Total Hardware 1999 - information about motherboards, hard drives, sound cards and more!
https://web.archive.org/web/20041119124347/ht … h99.dyndns.org/

MicroHouse Total Hardware has been archived at many places. You can even download TH99 for use on your on computer. Sites like Stasons use it...

Soltek archive 2000/06/03 of P.Pro, Soc7, Slot 1, Soc370, etc. Manuals and BIOS files that are downloadable.

https://web.archive.org/web/20000616195648fw_ … oad/manuals.htm

https://web.archive.org/web/20000616195648fw_ … wnload/BIOS.htm