I just got my hands on a temporary RTX 3080 until the latest cards are released, but I'm facing a power issue. My power supply (PSU) only has two PCIe connectors, and I've already daisy chained them. When I boot up my PC, the GPU shows a red flash, indicating insufficient power. The fans are spinning, but there's no display, and the RGB lights aren't turning on. I've heard I might need three cables to make it work properly, but I'm not sure if that's completely right. Also, how can I find an adapter to add another PCIe cable?
1 Answer
You definitely need all three PCIe power cables connected for your GPU to function properly. The daisy-chain method can be hit or miss depending on your PSU model. Make sure to plug in that third cable from your PSU for the best results. Any specific model info about your PSU would help, though!

Thanks for the tip! I have the MSI MAG A850GL PSU.