Airflow Barriers for Memory Module Cooling
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Solution Overview
Problem
Existing cooling systems for computer components, particularly memory modules, face challenges in managing increased thermal loads when using a single dual in-line memory module (DIMM) per channel, as they do not provide adequate airflow, leading to inefficient cooling and higher power consumption.
Innovation Solution
The implementation of reconfigurable airflow barriers that form channels to direct airflow between unoccupied and occupied memory module sockets, ensuring that each memory module receives cool air and maintains balanced airflow across the chassis, even in configurations with a single DIMM per channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a single DIMM is installed per channel, then the total system power and thermal load are reduced, but the thermal load on the individual DIMM increases significantly
Solution Approach 1:
The airflow pathway is segmented into multiple channels using airflow barriers. Each barrier creates a dedicated airflow channel that directs cool air to specific DIMMs, allowing individual thermal management for each memory module while maintaining the single DIMM per channel configuration.
Solution Approach 2:
Airflow barriers serve as intermediary structures between the airflow source and the DIMMs. These barriers redirect and concentrate airflow to ensure adequate cooling of individual DIMMs without requiring multiple DIMMs per channel, thus resolving the thermal load issue while maintaining low system power consumption.
2Reliability
If dummy modules are installed to maintain airflow paths, then airflow to other components is maintained, but additional airflow to DIMMs is prevented
Solution Approach 1:
The system transitions from static dummy modules to dynamic airflow barriers that can be selectively positioned. The barriers are installed only in sockets adjacent to occupied DIMMs, dynamically adapting the airflow configuration to match the actual DIMM installation pattern and maximizing cooling efficiency.
Solution Approach 2:
Instead of uniformly installing dummy modules throughout the system, airflow barriers are selectively placed only where needed - in sockets adjacent to occupied DIMMs. This localized approach maintains airflow paths where necessary while allowing increased airflow to DIMMs that require cooling.
3Temperature
If airflow barriers are installed to direct airflow to DIMMs, then cooling efficiency of individual DIMMs is improved, but device complexity increases
Solution Approach 1:
The airflow barriers are designed as simple, inexpensive components that can be easily installed and removed. Each barrier is a basic structural element that fits into the socket interface, minimizing complexity while effectively directing airflow to cool DIMMs.
Solution Approach 2:
The airflow management system is segmented into independent, modular barriers rather than a complex integrated system. Each barrier operates independently to manage airflow to a specific DIMM, simplifying the overall design and allowing selective installation based on DIMM configuration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances cooling efficiency for individual memory modules, allowing for the extended use of a single memory module per channel, reducing power consumption by managing thermal loads effectively without the need for additional modules, and maintaining balanced airflow across all components.
Implementation Method 1
A first pair of adjacent airflow barriers form an airflow channel guiding airflow along the first memory module and beyond the second column, and wherein a second pair of adjacent airflow barriers form an airflow channel guiding airflow through the first column and along the second memory module
Data Source
AI summary
Method and apparatus providing airflow through a chassis including an upstream column of memory modules and a downstream column of memory modules. The airflow is divided into first and second separate airflow streams extending from an upstream end of the upstream column to a downstream end of the downstream column. The first airflow stream is guided into contact with a single memory module operably-installed in the upstream column and to avoid contact with any memory module in the downstream column. The second airflow stream is guided to avoid contact with any memory module in the upstream column and into contact with a single memory module operably-installed in the downstream column. The improved cooling enables the extended use of a single memory module per channel, even though the thermal load on such a memory module is greater. The result is an overall savings of power, since cooling requirements no longer dictate the installation of additional memory modules per channel in order to share and distribute the thermal load.