<P>This upgrade is a 1GHz Pentium III processor that supports internal processing speeds of 1GHz and external processing operations to memory at 133MHz with an integrated, full-speed 256KB ECC L2 cache. It supports SMP applications through installation in the second processor slot of IBM eserver xSeries 330 models with like processors. This option can be used to upgrade 800MHz, 866MHz and 933MHz models of the xSeries 330 to 1GHz.</P>