I recently assembled a new computer for my sister, but it keeps shutting down unexpectedly.
I recently assembled a new computer for my sister, but it keeps shutting down unexpectedly.
Certainly going to test connecting the graphics card to a separate power supply to check for the problem. I’m sure you can do that without replacing the whole power supply—just use one to handle the GPU load and another for the rest of the system.
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I find the dual PSU concept unsettling, yet I lack any relevant information about it. A basic graphics card would be my best choice for testing against two power supplies. Adding another power connector won’t eliminate all potential problems with PSUs. Ensure each cable connects directly to its own supply if feasible. If the PSU is involved, avoid running on two units permanently. Also, observe how sometimes watt ratings are averaged across various voltages, which might push your 12V capacity to its limit.
The bios is configured to power off during an AC outage and restart afterward. If it restarts, it suggests the system is functioning normally. A reboot without shutdown could imply issues with the PSU or other components.
Tomorrow I'll replace the RTX 3080 with the GTX 560. If it still fails, we can eliminate the GPU and PSU; otherwise, it’s probably the PSU. (Likely the PSU.)
This single trial isn't sufficient. If it still fails, the issue might not be with the GPU itself but with other system components beyond just the graphics card. Should it crash, it could point to problems with the power supply unit or even the PSU, or possibly the older GPU causing instability. The challenge here is testing multiple independent factors instead of assuming a single hardware failure. Your GPU consumes three PCIe 8-pin connections, while your PSU only provides two. Make sure your board supports the full six pins if needed. Be careful not to confuse the EPS and PCIe connectors—they’re different and shouldn’t be swapped. You're almost at the breaking point; upgrading your PSU would be wise. If you're near Chicago, I can check my inventory for a bigger PSU for testing. Otherwise, you might consider using a more robust PSU with extra PCIe ports if you have one available. If you run the two-PSU tests, you'll need to manually connect the startup pins on the second board connector to get it to power up—be cautious while doing that. Do you have any accessory or attachment that lets you short these startup pins?
It seems the issue might not be related to a power supply failure. A brief outage wouldn't cause shutdown or capacitor use, but a short spike from the RTX 3080 could affect behavior. Your tests should pass so your sister can enjoy the GTX 560 for streaming on MySpace.
I would not consider that to eliminate the PSU. You're on a battery backup. That would eliminate wall power outage, unless you think both the battery and the PSU have issues.I think tripping the current protections inside the PSU might not look the same as AC Power loss. Hopefully I am making sense. We've got a prescription stimulant medication shortage in the USA so I'm operating half asleep. Edited October 16, 2022 by FeeNiX Updating with explanation