Hiya! First time on this site, recently, I took an old Essential 433c, upgraded the hardware, and swapped some out, for use as my first retro gaming rig, and here's the specs currently, and some screencaps of it in action, and its specs, probably going to get picked on for the choice of OS used for it, 🤣.

Board) WL810E.
CPU) 433MHz Celeron (Mendocino core, actually quite adequate for most retro gaming, both DOS and Win9x, as far as clock is concerned).
Graphics) Intel 82810 onboard (although if I could upgrade to a nice AGP Rage! card, I would, but unfortunately there's no AGP slots).
RAM) 192MB (upgraded from the stock 64MB because I had a 128MB PC100 stick sitting unused).
Hard drive) 18GB total combining the total capacity of both my IDE hard drives.
Sound) Creative SB Live! 5.1 SB0100 (although a nice Yamaha XG YMF724 card would be an upgrade to that).
OS) WinME (Yes, I know, the Mistake Edition, however I've only had one catastrophic fail with it so far, and it's been completely usable aside from that, plus it has some added functionality that is lacking in 95c or 98se that makes adding new games easier: native flash drive support and native ZIP archive support. Have to use 7-Zip for non-ZIP archives though).
DX) 9.0c.

Also, here's where my AL440LX board stands and what needs to be done to it.

Board) AL440LX.
CPU) 266MHz P2 Klamath core, which should be plenty for straight DOS, which is what I plan on running on the thing.
RAM) Need to get a 128MB PC100 stick.
Hard drive) Need to get a 10GB drive.
Video) Got an S3 Trio 64V and Diamond Monster 3D accellerator card, which I need to get DOS drivers for.
Sound) YMF715E onboard, which I need to get DOS drivers for.
USB) DOS drivers required for that.
OS) MS-DOS 7.1 or FreeDOS.

And here's the screencaps for the WinME (Yes, WinME) machine that is currently in use, one showing the system summary, and the rest showing it in action with some game screencaps.