IBM 73Y4527 server / storage / networking hardware Server Hardware / Parts

The IBM 73Y4527 is a zEnterprise Oscillator Card, CCIN 58A4, for the 2817 zEnterprise 196 mainframe family. Like the related FPH601/58E1 oscillator card handled elsewhere in this batch, it generates the precision timing reference the CEC’s processors and I/O subsystems synchronise to, but this CCIN is specific to the zEnterprise 196 rather than later machine types. zEnterprise 196 systems remain in active service across a number of long-lifecycle 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 a mainframe’s overall timing stability depends on it. Specifiers should confirm the exact 2817 machine type and EC level against their own system’s configuration before ordering, since 58A4 and 58E1 oscillator cards are not interchangeable across zEnterprise generations. Tech-Star (UK-based, shipped worldwide) stocks IBM zEnterprise 196 components to support ongoing mainframe maintenance.