Sun Microsystems is <A HREF="http://news.zdnet.com/2100-9584_22-6111173.html?tag=nl.e589">upgrading its lower-end UltraSparc-based servers</A>--but the new systems will arrive with a chip family introduced in 2003 instead of the faster successors the company had planned. The UltraSparc IIIi+ processor, code-named Serrano, was to be the major new feature that distinguishes three as-yet unannounced servers--the Sun Fire V215, V245 and V445--from their current UltraSparc IIIi-powered equivalents, the V210, V240 and V440. Instead, those new systems will arrive with the UltraSparc IIIi "Jalapeno" processor, which first arrived in 2003.