Issue with GPU power source continuing to operate after main power is switched off.
Issue with GPU power source continuing to operate after main power is switched off.
I have multiple open rack systems connected to BOINC. On one, I swapped a 750-watt unit for a 1200-watt model that works better. It supports three GPUs. Only the 12V PCIe cables are used, connecting both the GPUs and the risers, which are on the motherboard. No peripheral cables like 5 or 12 SATA were connected. Unlike the previous 750-watt power supply, the new 1200-watt one stays on even when the system is turned off. It seems there might be some issue with the 12V circuit or a defect in the 1200-watt unit preventing it from shutting down the bridge relay. Nothing appears damaged, but I reinserted the 750-watt unit. Could replacing the 12V relay with one that uses 5 volts help? Any suggestions?
Mentioned that only 12 volt cables were used. Were those exclusively the ones included with each PSU? No mixing of cables at all. Regarding the GPUs, three in the open rack are confirmed correct? Do you have a drawing or another way to clearly illustrate the connections between PSUs, GPUs, and other components inside the rack? If available, please share it via imgur (www.imgur.com).