I used to do quite a bit of work on NetFintiy and System X back in the day. If I remember right, late 90's/early 2000's would have been IBM NetFinity boxes with PII and PIII Xeons. In fact a quick Google found this amusing piece from El Reg - http://www.theregister.co.uk/1999/11/04/ibm_ups_pc_server_price/
The x235 was around 2003 (http://www-01.ibm.com/common/ssi/rep_ca/9/897/ENUS103-039/). For it's time, a beefy little tower that could certainly support the specs mentioned, though it's likely a P4 Xeon.
A few wires crossed methinks. Happens to me all the time. I blame senility and overdoing the coffee.