IBM xSeries 206

Monday morning and a pleasant 21ºC here in Sydney at the moment, so everything is up and running, including my home PC that is coping fine without case fans due to the side panels having been removed from its case.
The IBM xSeries 206 seems to be behaving itself and the computation errors that occurred on SETI and QMC don’t seem to be a long term problem. The history of this machine is interesting; I was walking past the trash-can area of our office building and noticed that one of the other tenants had thrown out an x-Series case. I slam on brakes and have a look to see if it still has a power supply … score! It does … hang on, it also has a motherboard 2 SATA drives, a CPU and 4 DIMMS. Couldn’t resist and dragged it off to my car.
Somewhat surprised later when the orphan does a POST and starts to boot SBS2003! That’s where the fun ended as a serious blue-screen arrives around login time. After a couple of minutes of playing around with the RAID utility in BIOS, I find a badly injured RAID 1 setup and despite a couple of hours spent rebuilding the array didn't fix SBS2003 . After some contemplation, I decide that Ubuntu RAID 1 looks a little bit tricky (for me at least) so I pull out one of the drives, killed the RAID and installed 32-bit Ubuntu (the IBM didn’t like the 64 bit version!)
The first couple of work-units returned errors and I thought that there must be a CPU/memory/motherboard problem but can't track anything down. Looking at the SETI website, I see the problem work-units all mention SSE3, which this machine doesn’t support. Its got a single Pentium 4 3.0 HT CPU that only has SSE2, the work units that mention SSE2 in the header appear to work fine. No idea what was going wrong with the QMC units, they just appeared to loose the heartbeat!
Apart from crunching, this machine now runs Apache and is visible to everyone on the other side of our router. It is the ideal machine for this as there is absolutely no user data on the drive. It also allows me to use XMing from my laptop when I need Linux with a chunk of RAM (e.g. to run GIMP)