Only two out of five ports are functional for the graphics card. Verified across various monitors, MOBOs, and GPUs.
Only two out of five ports are functional for the graphics card. Verified across various monitors, MOBOs, and GPUs.
I restarted using the DP connected to a non-functional port, then powered down. A mem error appeared before rebooting. After resetting all parts except the CPU, the GPU passed tests in-store on its test bench with all ports functioning. All my evaluations used this cable from MC, which they claimed was faulty due to a poor WFH cable. Booting with the cable in the middle DP works normally, but the GPU’s error LED stays on. Switching to the other two DP ports after startup causes monitors to fail detection. Upper HDMI works fine. Booting with the cable in one problematic port restarts the PC but keeps the error light until a reboot. I tried another GPU, an RX580, which had the same problem. I checked all PSU cables and they matched the issues seen with the 3080 across every cable. I ran identical tests on a second MOBO, RAM, and CPU. Only my PSU remained unchanged. The problem continued with both the 3080 and RX580 in the new configuration. I haven’t changed monitors or PSU, just ordered a replacement tomorrow—a 1.5-hour trip to MC. Until then, I’m holding off to figure out what’s wrong. CPU: Intel I9-14900K – No attempt to overclock yet. MOBO: ASUS TUF GAM Z790-PLUS WF D5 RAM: G.SKILL 64GB 2X D5 6000 C36 - XMP – BIOS set, issue persists. Storage: 1TB QN450 NVME SSD and a WD 256GB OS drive. GPU: Asus ROG Strix 3080 10GB V2 OC White – Refurbished at MC, all ports worked; I tested it myself. Monitors: Dell P2723D & P2219H – WFH mode, issue impacts both. PSU: SEASONIC FOCUS V3 GX1000 80+Gold ATX. Updated February 2, 2025 by JollyLlama120 Added new info
You shouldn't overclock. The trade-off for slightly less performance isn't worth it. DP might not work out of the box. What if you try other DP ports? Just a question—do you actually reinstall Windows or update the drivers? That seems correct. I’d consider using DDU to fix the drivers and reinstall. Or go with a fresh Windows install. Also, avoid mixing AMD (RX 580) and Nvidia (RTX 3080) drivers—they can clash. Good luck!
Windows 11 updated all MOBO BIOs to version 1805 and GPU drivers. The problem appears with both devices. I reinstalled Windows from scratch when the issues began. Booting through a faulty port works temporarily, but the MOBO video card error light stays on until I restart using the working port. Adding the RX 580 didn<|pad|> to cause installation issues and required a repair.
If the port functions, the debug indicator becomes unnecessary. It could stem from a minor issue in the BIOS.
I understand your concern, but the problem occurs in both MOBOs and GPUs, which doesn<|pad|>'s not point to BIOs. It began after assembling the build without any BIOs or driver updates. Even after reinstalling Windows and drivers, it remained unresolved. The only consistent factors have been my monitors and power supply unit. The new PSU will arrive tomorrow, and I’ll check it out.
The power supply must remain separate from the video card's operation. Certain displays require longer setup and may not wait long enough before reporting a connection failure. This could indicate the monitors are more sensitive. Your message doesn't mention testing with different displays. Consider reaching out to Dell support for firmware updates. Check the OSD beforehand and note the firmware version in case you need to include it in your communication. Have you used another monitor with HDMI ports, or are you testing on a television?
Only the monitors remain. But is the CPU identical? The PCIe lanes and memory controllers are integrated into the CPU, which means a CPU issue could affect the GPU. On the other hand, I hope it's the PSU—it's much cheaper than swapping out a high-end CPU.
Yes, it was checked on another motherboard and CPU with the same problem. It doesn’t make sense that the power supply affects the video outputs, especially since I haven’t replaced any other parts besides the monitors and PSU. They tested the GPU at a store and it functioned properly on all ports on their bench and a higher-end display. I haven’t tried another monitor yet, planning to ask a friend for one if needed. If swapping the monitor or PSU doesn’t help, I’ll be stuck and have to pay for a repair.
I restarted using the DP plugged into one of the faulty ports, changed to the working one, and when I attempted to power off a memory error appeared just before shutdown. The graphics card LEDs began flashing and kept doing so during reboot.
Memory error ? Do you have the exact message or can you check in Windows Event Viewer, please ? I think you should test your RAM with memtest86 or similar software. A mem error can be pretty unpredictable on which issue it can cause. As for the graphics card leds, you should check the manual what are their meaning. On my AMD card, flashing means nothing and steady lit means PCIe power cable unplugged. I don't think your graphics card uses those leds the same way.