Ill have to come bck to you on correct spec as Im overseas at present, but Ill get one of my staff to get teh spec to me.
I know it has 2 x intel xeon's 8 core 2.9gb cpus though and 8 x hp hd's 15k rpm 146gb.
The server just goes to an unrecoverable PSOD.
As I said it has only done it after prolonged high usage (5 hrs or more) but the cpu has never gotten above 20% usage. We normally see about 300 people on the site and both times it has crashed we have had over 1,000 people on the site but after that level of trffic for about 5hrs is when the crash has happened.