Nubie denied reply

HI

I just joined up to reply to a supposed recent posting during a search, reloaded and re-signed in and was still denied... Looking at the home page, I can't find a link to the page, and may be the reason... The question was in regards to upgrading a 1999/2000 generation Compaq Deskpro EN series or EP? series computer, these were in large ATX cases but mount well in any number of smaller conventional miniATX forms. My first PC was an eMachine 700 with socket 370 700MHz Celeron DVD CD-RW, a new hot feature of the time and a deciding factor for my first machine. The Compaq Deskpro with it's screwless hardware and vertical/horizontal case is still pretty nice and the boards follow conventional ATX forms that allow them to replace others, cases or boards. The 370 Pentiums FC PGA chips went through 4 iterations from Intel during their lifespan and the Tualatin being the last, was actually speedier then the early P4 chips from my research and asking shops here locally who resell.
I was also looking to upgrade memory and CPUs for these older motherboards and initially assumed from info and experience the 370 sockets could upgrade to the last series Tualatin and memory could upgrade with support to PC133. I found that wisdom is not too good, I found computers excepting a 133 Mhz bus speed still not welcoming chips over 550MHz, much less 1GHz to 1.2GHz.
I am curious what I need to know to determine which 370 boards are worth hunting down or snatching up for these upgrades... Which slot 1 Pentium 3 boards will work with an 850Mhz cpu? I have one with no boards excepting it.

Many people say these old chips are not worth the bother but for the $3 to $25 dollars typical of the hardware, everyone can have an all-round PC for most mundane tasks, like Internet to be sure, and digital photo editing, that I can also do using a Pentium 90 on a 410CS/CDT Toshiba... There is plenty of software still working under Win 9x
I am about to get a wifi PC card for my laptops and hope to learn some tips as a first time user of that as well.
BILL S.