Floating Paddle Card for OCP Management Expansion
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Solution Overview
Problem
Existing information handling systems face limitations in the number of OCP cards that can be supported due to fixed connector placements, restricting the management and expansion of peripheral components.
Innovation Solution
A floating paddle card is introduced, communicatively coupled to the motherboard, which acts as an interface between devices and the management controller, dividing management responsibilities and enabling modular device support, clock control, power management, and fault handling, thus overcoming the limitations of fixed connector placements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed connector placements are used on the motherboard, then the system structure is simple and easy to manufacture, but the number of supported OCP cards is limited and system flexibility is reduced
Solution Approach 1:
The management functionality is segmented between the management controller on the motherboard and the microcontroller unit on the floating paddle card. The management controller handles high-level management tasks while the microcontroller unit handles local device management, allowing the system to support multiple OCP cards without proportionally increasing motherboard complexity.
Solution Approach 2:
The floating paddle card acts as an intermediary device between the motherboard and OCP cards. It provides additional management capabilities and interface functionality, enabling the system to support more cards without requiring direct complex connections from the motherboard to each card.
2Productivity
If the management controller handles all device management tasks, then centralized control is achieved, but the management controller becomes a bottleneck and system performance degrades
Solution Approach 1:
Management responsibilities are segmented and distributed between the management controller and the microcontroller unit on the floating paddle card. The microcontroller unit handles local device management tasks such as clock control, power management, and fault handling for connected OCP cards, reducing the burden on the management controller and improving overall management efficiency.
Data Source
AI summary
An information handling system may include a motherboard and a floating paddle card. The motherboard may include a host system comprising a host system processor, a logic device configured to perform a functionality of the information handling system in accordance with code stored on non-transitory computer-readable media of the logic device, and a management controller communicatively coupled to the host system processor and the logic device and configured to perform out-of-band management of the information handling system. The floating paddle card may be communicatively coupled to the motherboard and configured to serve as interface between one or more devices coupled to the floating paddle card and the logic device and the management controller, the floating paddle card comprising a microcontroller unit configured to, alone or in combination with other circuitry of the floating paddle card, divide management of the one or more devices between the motherboard and the floating paddle card.