The cable connected to GPU_PWR does not go into your graphics card. That is an EPS 8-pin power cable and your graphics card needs a PCIe 8-pin power cable. There should be some PCIe 8-pin (6 + 2) cables tucked up in the storage space in the swing-out PSU contraption. That is what you need for your graphics card. You must have that EPS 8-pin power cable connected to GPU_PWR. Unfortunately, the "disable secure boot" story is true. Do you know anyone with an OEM Dell graphics card you could borrow to get into BIOS? Look and see if you have a PCIe cable stored like this [IMAGE]  
Hi, my understanding is that the stock graphics card in my R9 failed. Screen went black a few weeks ago. Computer would boot up but I couldn't see or do a thing.Dell diagnosed it as a failed video card. I didn't want to spend over $300 having Dell replace it with another 1650 that was not very good to begin with. So I thought I'd do it myself and wound up getting a RX 6600 to replace it.Maybe I should have sought more advice first, but here I am. A couple questions.1. Do I need to put a power cable into this card? I see a cable plugged into the board that says GPU_PWR. Am I supposed to unplug that and put it into the new card? See attached photo. I tried to illustrate the cable I'm seeing and an arrow pointing to where it might go? The stock card did not have a cable plugged in.2. The Aurora has the base power supply. Which I think is 475. Or about that. The card recommends 500W or more. But I do not plan on pushing this card to the limits. I'm a casual gamer. Will that be an issue?3. While looking up info about installing this card, I saw a comment online that worries me. Someone said that while trying to install an AMD card into their Aurora, they got a black screen and someone replied that:  "you have to insert [the] dell GPU, hit F2 for bios and then disable SecureBoot and enable CSM (legacy support) to use a non-Dell card or it refuses to display video due to security violation. So, now I'm worried that this card won't work. And if it doesn't work. I can't put in the OEM card either to change BIOS. So then what do I do? Buy a used OEM card in eBay? Any thoughts appreciated. Thank you[IMAGE]
Aurora R9, help regarding graphics card upgrade