The PC powers on briefly before turning off.
The PC powers on briefly before turning off.
Hello, I recently acquired a used GPU and initially it was functioning properly. However, during a previous benchmark using FurMark with the quick 1080p test, everything worked well. The temperature reached a peak of 70°C, which doesn’t seem too concerning. Later, I ran another stress test and left the system running for about five minutes. When I returned, I noticed my PC had shut down completely and refused to power on.
Details about the setup:
- Motherboard: Gigabyte A520M
- CPU: Ryzen 5 5500
- GPU: Gigabyte RX 5700 XT
- RAM: 8GB x 2
- Storage: 1 x 240GB SSD, 1 x 1TB HDD, 1 x 1TB NVMe SSD
- Power Supply: Corsair CX550 550w
I previously inquired about the PSU’s capacity before purchasing the GPU, and they confirmed it would be sufficient. They also mentioned that when the GPU is connected via the 8-pin and 6-pin headers, the PC won’t power on at all. However, if none of the PCIe pins are connected while the GPU is inserted into the 16-pin slot, the system does power on, with the GPU’s debug lights turning on and its RGB lighting activating. The same happens when only the 6-pin is used. But when the 8-pin is connected instead, the PC fails to start.
Additionally, I noticed the GPU seemed to emit a burning smell when checked.
I previously mentioned in discord buildapc that my 550w psu could support the rx 5700 xt. Also, I managed to boot up the system using that psu earlier.
non typically a positive indication, have you examined the card for any indications of harm? or are there any breaks in the case or nearby wires? I’d suggest looking at the power connectors for any signs of overheating, especially the 8 pin plug which seems to be the source of your issue, but since you have older connectors, that’s less likely.
The shutdown happens very quickly, almost immediately after power is applied. If the PSU couldn’t manage the current, the difference between 550 and 600 isn’t significant—it wouldn’t cut out until the GPU was under some strain, not when the motherboard is just beginning to try displaying a splash screen.
This pattern usually points to a short in the GPU or a fault in the PSU. The PSU might be failing because a problem on the GPU power circuit is present, or its safety mechanisms are activating to protect itself from a GPU fault.
If you don’t notice any issues with the 8 pin plug on your PSU, do you have another GPU to test and see if it functions with this setup?
No, I don't have a spare GPU because I've already sold the old one. I'll consider going to my friend's house tomorrow to see if the issue is with the GPU. If it is, I'll need to return it. My system was still running before I ran the benchmark, and I wanted to make sure it would work properly. I really don't want a faulty GPU.
applying load to a system raises temperatures and stresses the PSU, increasing chances of faults in both components. this poses a danger if the used GPU has existing issues or has been heavily used in a mining setup. inspect the socket carefully with a torch or magnifying glass to check for abnormalities in pins or holes. avoid damaging the GPU by testing it in an environment where the PSU might fail, such as a faulty plug. consider testing a different known working PSU first, or use a less reliable one if necessary, to prevent harming the PSU. an older unused GPU offers a safer alternative for testing.
That is possible if you demonstrate the issue lies with your new used GPU, considering the seller's honesty and purchase location, you could receive a refund.
I've already discussed the problem with them regarding the card, and they suggested replacing it with an Rx 6600. However, I mentioned I'd prefer a refund since I don't really like that GPU because it lacks the performance I need. They agreed to a refund if necessary.