I have a stock, from the factor Dell Mini 10.  Never opened it up.
1 GB of memory Intel Atom N450 cpu and 250 GB Hard Drive.  The Hard drive is so old, it shows up as wd0!!!   But, when I run Fuguita 386 on it, it shows up as sd0, go figure.  OpenBSD supports AMD64 variants of their OS will all the Intel DRM.  I'm running the 386 version of OpenBSD and I"m afraid I really don't know if this notebooks FredFlintstoneLake Intel Graphics is actually supported on the 386 version.  Things are slow but not horrible on this laptop.  I still have the original WIFI chip in this notebook and mine is Atheros.  Dell has been known to switch out hardware on production lines -mid-stream- for all their computers so it doesn't surprise me one bit you had a different WIFI from mine.  I've still got the Original factory battery also.  The Dell Mini 10 is fanless and quiet.  OpenBSD doesn't PUSH the hardware into overheating.  I need to look into expanding my memory, if that's even possible on this model as it was the very first of the Dell Mini 10 series, the first year they offered the Mini 10 Inspiron.  I've always been told the ram is soldered in on this model and that I was screwed but, I need to open this up and look around.  Maybe at least upgrade my hard drive also and put some fresh CPU paste on the heat sink.  It's over 12 years old now.  Still very reliable, and I use it very day.  I'm using it now to type your message.  Take care and bye..