IBM Spyre® AI Accelerator
The IBM Spyre® AI Accelerator card integration provides an IBM Z Level of Integration, Reliability, Availability, and Serviceability (RAS) and Security. This feature enable quick AI stack update cycles in a swiftly changing AI environment.
- IBM Spyre AI Accelerator (FC 0463) can be ordered in increments of one feature, with up to a maximum of 24 features (8 per PCIe+ I/O drawer.
- IBM Spyre AI Reserve Slot (FC 0061) is offered for plan-ahead
purposes, in support of the IBM Spyre AI Accelerator.
Ordering FC 0061 will reserve the desired quantity of PCIe+ I/O drawer slots for Spyre AI Adapters that can be ordered as a future MES. These reserved slots can be ordered in blocks of 8, up to a maximum of 48.

IBM Spyre AI Accelerator plugging rules
The following plugging rules for IBM Spyre AI Accelerator within the PCIe+ I/O drawer optimize system RAS, power, I/O bandwidth, AI performance, cooling airflow, and acoustics.
- There are 16 I/O slots per 8U I/O drawer
- Start with a minimum of 4 per drawer (base building block with 2 per I/O drawer domain)
- After 4 per drawer, spread cards evenly into the defined plug locations, up to a maximum of 8 per drawer (8 assures drawer power is under its limit when the other slots contain I/O)
Example
The following is an example of how 8x, 16x, and 24x IBM Spyre AI
Accelerator cards would be distributed among a 5 I/O drawer system: 
