Out with the old and in with the new. That's what Intel's doing with its Xeon server line of processors, as the chip maker announced in a product change notification (PCN) to customers that it plans to phase out 31 different retail boxed dual- and quad-core Xeons built around the Core architecture on a 65nm manufacturing process as it transitions to 45nm.

Specifically, six Woodcrest dual-core Xeons (5120, 5150, LV5148, 5110, 5130, 5140, 5160) and nine Cloverton quad-core Xeons (E5310, E5320, L5320, E5335, L5335, E5345, X5365, X5355) are getting the axe, in addition to variations in each lineup to bring the total up to 31, TGDaily reports.Once supply of the boxed versions run out, customers will no longer be able to order the 65nm chips though tray units will still be made available, albeit with a shorter warranty through the reseller and without a bundled heatsink/fan.