One PSU shutting off in a dual PSU setup for a PC
One PSU shutting off in a dual PSU setup for a PC
Hello once more,
I’m facing some problems with my GPU mining setup. The issue is that a particular PSU tends to shut down when the rig starts consuming more power. As a result, only half of the GPUs and the motherboard stay active, while the other three lose power and turn off. When idle, the PSUs remain operational and will continue running without interruption.
What caught my attention is that this setup performed perfectly with two additional GPUs about a year ago. I removed those to use in other systems.
Another important observation is that my second mining rig is showing the same problem, yet it functioned just fine in previous years. This suggests the issue might not be related to the rigs themselves. However, after trying various solutions—different power cables, plugs, and even a different PSU adapter—I still can’t pinpoint the cause.
Here’s what I’ve tried:
- Changed the PSU positions and lowered the GPUs’ clock speeds to 240W each.
- Verified all connections and rebuilt the system from scratch.
- Switched power cables, used a different plug, and opted for a recommended adapter instead of the previous cheap one.
- Updated the mining software, adjusted BIOS settings, and ensured components stayed within safe temperature limits.
I’m open to any advice and would really appreciate your support!
Not accustomed to either operating system. Still, after reviewing everything again, I think the main issue is insufficient power supply. This GPU? And six are installed in each setup – correct? Together with other standard components that need electricity. https://www.nvidia.com/en-us/geforce/gra...80-3080ti/ Check the wattage details: Remember, these numbers were probably set under ideal conditions. Now the actual demand is greater. FYI: The goal is to use various calculators to assess the full power needs of mining rigs. If a part lists a range of wattages, use the highest value. Also, perform your own manual calculation to sum up the consumption. How near to maximum wattage are these totals? Another approach is to actually measure the power usage with a Kill-a-Watt device. Buy the model that fits your electrical setup. Watch the wattage during startup and notice changes when the PSU shuts down. Initially working well but deteriorating over time due to continuous high output, possibly leading to early failure. Also consider: can you share a wiring diagram illustrating how all the power units, GPUs, etc., are connected? If two rigs show the same problem, post a diagram showing the components and connections. Search online for “bit mining power rig schematic” for reference images. Adding a photo would help.