Custom Water Block Reduces RTX 5090 Temperatures by 25°C

A modder has significantly reduced the temperatures of the NVIDIA GeForce RTX 5090 Founders Edition by using a customized water block. This modification resulted in a temperature drop of up to 25°C, an impressive improvement for a high-performance card that requires special attention due to its compact design and high thermal capacity.
Before the modification, the card faced challenges related to the 12V-2×6 connector design and the reduced size of the PCB. The modder highlighted the need to disassemble critical components on the card to integrate the new liquid cooling system, demonstrating the complexity of the work.
During tests, temperatures were compared between the standard NVIDIA solution and the custom system, showing a significant reduction in heat generation during high-performance operations.
The Importance of Custom Cooling Solutions
The RTX 5090, with its cutting-edge performance, requires efficient thermal solutions to avoid issues like connector melting seen in improperly configured systems. Similar issues were observed with the RTX 4090, where modders turned to creative solutions, such as 12,000 BTU air conditioning systems, to keep temperatures under control.
These examples highlight the need for the community to explore custom cooling methods for enthusiasts looking to unlock the full potential of their GPUs. However, these modifications require extreme caution due to the complexity of the design and the high cost of components like the RTX 5090.
The Growing Demand for GPU Cooling Solutions
The demand for efficient cooling solutions is expected to rise as GPUs like the RTX 5090 become more powerful and compact. These cards face significant thermal challenges, requiring innovation in design and cooling. With the enthusiast community leading creative initiatives, such as the use of custom water blocks or air conditioning systems, the industry may adopt these ideas to develop more efficient official solutions in the future.