PadinnPlaysI was playing League of Legends earlier when all 3 monitors went black. Was able to reboot with some effort, but same thing happened. Now when I try to power up when my card is connected I hear my PSU Click twice and system doesn't post. I do see RGB RAM Lights turn on. I am able to boot and use the integrated 9900k graphics just fine, but as soon as I connect third power connector to the 3090, I hear the clicks and system won't power. I tried a different PCI slot and all combinations of cables, including running two connectors from one cable, with same issue. I was able to use a different , non GPU, PCI express card in the normal GPU space so I'm fairly certain it isn't the motherboard. I can boot into windows using integrated graphics if I don't connect all 3 cables (I will see 3 red lights on the 3090 above them when I do this). Having trouble determining if this is a PSU or GPU issue. It is a Seasonic Focus Gold Plus 850w that is about 2 years old. Everything else is up and running fine right now.
PadinnPlaysHonestly this is one of the best power supplies that exist, go look up JohnnyGuru's review of it. It has extremely solid output. Always a chance mine went bad, but I have some doubts. Unfortunately I don't have another power supply or desktop on hand to test.
jankersonPadinnPlaysHonestly this is one of the best power supplies that exist, go look up JohnnyGuru's review of it. It has extremely solid output. Always a chance mine went bad, but I have some doubts. Unfortunately I don't have another power supply or desktop on hand to test. It's the PSU, doesn't handle the transient power spikes very well that the 3000 series card have. Call or contact Seasonic and they will take care of you, they will likely send you another PSU that does work with them.
PadinnPlaysI tested a new power supply (EVGA 850 GQ) and the card actually fried (I think a capacitor) - used the new PSU cables and all, so nothing wrong there. Saw a spark and smelled/saw smoke near the first 8 pin connector. Luckily rest of PC is fine, I contacted EVGA and they are sending a replacement. With each PSU I ran 3 separate cables.