IBM 73Y4630 server / storage / networking hardware Server Hardware / Parts

The IBM 73Y4630 is a zEnterprise Oscillator Card, model FPH601, CCIN 58E1. The oscillator card generates the precision timing reference the CEC’s processors and I/O subsystems synchronise to, making it a small but functionally critical component rather than a general logic card, and a fault on this card can affect overall system timing and stability rather than a single subsystem. zEnterprise mainframes of this generation remain in active service across many financial-sector and large-enterprise data centres running z/OS, z/VM and Linux on Z, and a genuine replacement oscillator card is required whenever the original fails, since timing components of this kind are not something a data centre can safely substitute with a generic part. Specifiers should confirm the exact machine type and EC level against their own system’s configuration before ordering. Tech-Star (UK-based, shipped worldwide) supplies the 73Y4630 for engineers maintaining zEnterprise mainframe timing subsystems.