Question🆘RX 5700 XT No Display Output (monitor stuck in standby) - Possible BIOS Damage?
Question🆘RX 5700 XT No Display Output (monitor stuck in standby) - Possible BIOS Damage?
🆘 Urgent Help Needed: RX 5700 XT No Display Output (Stuck in Standby) - Comprehensive Diagnosis Required
Hi Tech Experts,
I am facing a severe no-display issue with my external GPU and I need expert help to diagnose the root cause (Hardware vs. Software/BIOS) and find a solution.
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My System Specifications
:
GPU: AMD Radeon RX 5700 XT (Has a Dual BIOS Switch).
Motherboard: Gigabyte B365M DS3H.
CPU: Intel Core i5-9400F (Does NOT have integrated graphics - iGPU).
Constraint: My motherboard only has one PCIe x16 slot.
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Detailed Symptoms of the Issue
:
System Running: The PC boots up successfully; I can clearly hear the Windows login sound and desktop sounds, confirming the entire system (CPU, RAM, OS) is functional.
No Signal: The monitors connected to the GPU remain completely in Standby mode. The card is failing to output any signal whatsoever—no POST screen, no BIOS, and no display output.
Power Confirmation: The RGB/LED lighting on the graphics card is active (confirming main power is reaching the card).
Fans
: Fans are not spinning, which is normal for this model at idle/low-temperature operation.
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Troubleshooting Steps Completed
:
PSU Test
: Tested the Power Supply Unit (PSU) with a different working GPU; the spare GPU worked perfectly (ruling out PSU failure).
Connectivity: Tested all ports (HDMI/DP), multiple cables, and different monitors—the issue persists (Standby).
Physical Inspection
: The card was cleaned internally; no visible damage was found.
Dual BIOS Switch
: I switched between both BIOS positions (Switch 1 and Switch 2) while the PC was powered off; neither position resulted in a display output.
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Crucial History/Potential Cause
:
While the PC was in use (during a system hang), I may have accidentally flipped the Dual BIOS switch on the graphics card. This event potentially coincided with the onset of the current no-display issue.
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Assistance Required
:
I need assistance from the community to help me determine if this is a hardware failure (GPU/VRAM) or a soft failure (Corrupted BIOS on both chips).
If it is a BIOS issue, I plan to move the card to a friend's PC with an iGPU. What is the safest and most effective method to Flash the BIOS without a working display?
If it is a hardware issue, what specific components should I ask a technician to test (e.g., VRAM resistance, Core Voltage rail short)?
Checking if the bios switch is completely in one position might still leave it slightly in the middle.
It isn't something you can just swap in. That's not a feature users can change. If I'm clear on what you mean.