On May 17, 2005, Sony Computer Entertainment confirmed some specifications of the Cell processor that would be shipping in the then-forthcoming PlayStation 3 console. This Cell configuration has one PPE on the core, with eight physical SPEs in silicon. In the PlayStation 3, one SPE is locked-out during the test process, a practice which helps to improve manufacturing yields, and another one is reserved for the OS, leaving 6 free SPEs to be used by games' code. The target clock-frequency at introduction is 3.2 GHz. The introductory design is fabricated using a 90 nm SOI process, with initial volume production slated for IBM's facility in East Fishkill, New York.