An electronic system includes a chassis, a liquid coolant supply line assembly, a first electronic subassembly, a second electronic subassembly, and a liquid coolant return line assembly. The liquid coolant supply line assembly includes a coolant supply line configured to receive and convey liquid coolant. The first electronic subassembly includes a first electronic component and a first cooling loop to transfer heat from the first electronic component into the liquid coolant. The second electronic subassembly includes a second electronic component and a second cooling loop to transfer heat from the second electronic component into the liquid coolant The liquid coolant return line assembly includes a coolant return line to receive liquid coolant from the first and second cooling loops.