Got 2 of these. Their size makes them very handy and make a solid workhorse.
I've just maxed out the CPU and RAM which cost £30 and installed lubuntu on one and put back into work at my Mrs shop for some light word processing work.
I'm only using the integrated Intel graphics card though

This was right at the end of Compaq and you can find HP branded PC's
Uxbill did a video on them
https://www.youtube.com/watch?v=YIaZuoxSNjw&t=98s

Oh cool, yeah the size is perfect. I was thinking of upgrading the RAM too not sure if i care much for the CPU.
When i got home with this PC i actually looked it up and saw that video, pretty cool.

Trank wrote:

Heres the 6200, doesn't seem to be very broken look wise, but who knows? My guess with what happens to a lot of no fanned cards is it burned out.

It might be that these SFF systems don't provide much internal airflow to the expansion cards. The cards may be "fanless", but they will rapidly burn up regardless if they don't get any airflow.

Neat system. My highschool had all Dell Optiplexes, but I know a few other highschools in the area used these Compaqs instead.

Yeah that too, either way it needs a fan in my opinion. Yeah these were used in schools eh? Sadly my district was one of those all in one G3 mac schools back in the day. I guess im going to either rebuy a Geforce 6200 or find something else. As long as it has S-Video and is low profile ill buy it.