Deliver high-performance, robust PCIe® link connectivity with optimized thermal efficiency for CPU root complex server boards that connect to GPU baseboards in AI servers.
Challenges:
- High-speed PCIe links between the AI server head node and GPU baseboards can suffer from insertion loss and signal degradation across board traces and multiple connectors
- Dense AI server designs require connectivity solutions that balance performance with power, thermal efficiency, and compact board footprint
- AI server platforms need signal conditioning solutions that can be matched to different channel lengths, topology complexity, and system design constraints
Solution: Aries PCIe Smart Signal Conditioners
Aries PCIe Smart Retimer
- Purpose-built for demanding AI server channels, delivering robust signal integrity and link stability over long distances for dense GPU baseboards with multiple high-speed connectors
- Low latency with a compact footprint for optimized performance, power consumption, and thermal efficiency
- Real-time lane, link, and device health monitoring plus management features via Astera Labs’ COSMOS suite which provides comprehensive diagnostics and telemetry
Aries PCIe Smart Redriver
- Optimized for low to medium-reach AI server head node channels, compensating insertion loss across board traces and multiple high-speed connectors to maintain signal quality in controlled topologies
- Ultra-low latency with a compact, low-power footprint for efficient performance, power consumption, and thermal design in space-constrained server platforms
- Flexible equalization support enables channel-specific tuning to preserve link quality across fixed CPU-to-GPU interconnect paths
Both solutions benefit from rigorous interoperability testing in our Cloud-Scale Interop Lab with leading GPU, CPU, PCIe switch, network, and storage endpoints to minimize interoperation and accelerate time-to-market.
