GPU receives no power from the PSU and fails to activate solely on my system.
GPU receives no power from the PSU and fails to activate solely on my system.
Hello, here’s what I’ve noticed about my setup.
My GPU is a 1660 Super, and I’ve been using it for some time. It functioned normally until I installed the battlefield 6 alpha build, after which my system would freeze and display a black screen. I removed the anticheat software, reinstalled the drivers via DDU, and it worked again until recently when my graphics card stopped receiving power.
I’ve replaced two PSUs and tried using them, but the issue persists. My GTX 970 is still operational, and it runs smoothly on all power supplies. I attempted to install the 1660 again, but it only displayed briefly before shutting down after about 30 seconds.
My friend’s PC with similar specs (AntEsport PSU, B450 motherboard) is working fine. The GPU was stressing well, and we played games nonstop without problems.
I’ve reset the CMOS, jumper, secure boot, and CSM settings, but only one card is functioning. It seems EA’s Javelin Anticheat might be involved, or there could be a power profile issue with my motherboard.
Welcome to the forums, newcomer! Here are some models you might find interesting: Gigabyte p550b (new), Corsair CV550 (old), AntEsport RX550 (new). It's worth noting that the PSUs mentioned above have poor build quality and aren't suitable for systems with your specifications. The PSU tier list rev. 17.0g from Cultists Network can assist in selecting a suitable power supply from many options available. From budget to high-end solutions.
I get it, but I'm not completely confident about getting another PSU right now.
The PSU is used to power the GPU in someone else's system (my friend's rig).
If I'm correct, does it consume less power than the other two? If it did work with my current setup, I'd consider swapping it for a better tier, though I'm not sure if the motherboard is the issue.
The GTX 1660 Super is a 125watt tdp card needing at least a 300 watt PSU. Even with the listed three power supplies, which aren’t ideal (the Ant Esports is subpar), the total system shouldn’t exceed about 250 watts under full load.
The GTX 970 consumes more power than the 1660 Super by 25 watts and may experience worse power spikes. Since the GPU previously functioned well in your setup and others do too, the PSU seems less likely to be the main cause.
The more probable problem is a short circuit issue. Given that other GPUs work fine, it could be related to poor contact between the 1660 Super and the metal parts of the case from the card mounting bracket. Also, loose or missing motherboard mounting screws might be causing the issue—when the board shifts in the case, it can lead to shorts at rear I/O back plate contacts with metal housings of USB or Ethernet ports.
You might attempt removing the motherboard and testing the GPU outside the case ("bread boxing") to check for shorts. Before doing that, ensure all screws are tight but not overly compressed inside the case.