F5F Stay Refreshed Hardware Desktop PC cannot start or install due to GPU issues.

PC cannot start or install due to GPU issues.

PC cannot start or install due to GPU issues.

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MCmasterKIDz
Junior Member
44
06-29-2022, 07:02 PM
#1
Gpu: rx 5700xt cpu: Ryzen 7 5700x mobo: msi B450 tomahawk max, latest bios. I encountered unexpected difficulties launching the system. The CPU started EzDebug mode. After repositioning the CPU and reconnecting the GPU, nothing functioned properly. Later, I adjusted the CPU cooler screws to ease board movement, which temporarily resolved the problem for a few days. Now, my PC operates normally until about half an hour ago, after which it abruptly restarted twice. It appeared there was insufficient power supply. The debug LED remained active. This time I only removed the GPU, and the system booted successfully—keyboard and mouse worked. When I reinstalled the GPU, the CPU debug reappeared and the system failed to start. Black screen, no boot. GPU fans are not spinning. What should I do?
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MCmasterKIDz
06-29-2022, 07:02 PM #1

Gpu: rx 5700xt cpu: Ryzen 7 5700x mobo: msi B450 tomahawk max, latest bios. I encountered unexpected difficulties launching the system. The CPU started EzDebug mode. After repositioning the CPU and reconnecting the GPU, nothing functioned properly. Later, I adjusted the CPU cooler screws to ease board movement, which temporarily resolved the problem for a few days. Now, my PC operates normally until about half an hour ago, after which it abruptly restarted twice. It appeared there was insufficient power supply. The debug LED remained active. This time I only removed the GPU, and the system booted successfully—keyboard and mouse worked. When I reinstalled the GPU, the CPU debug reappeared and the system failed to start. Black screen, no boot. GPU fans are not spinning. What should I do?

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CGrace
Junior Member
16
06-30-2022, 02:23 AM
#2
Consider using a different GPU. Verify if the CPU has bent pins.
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CGrace
06-30-2022, 02:23 AM #2

Consider using a different GPU. Verify if the CPU has bent pins.

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VeroPlayz
Member
235
06-30-2022, 02:58 AM
#3
Lack of a spare GPU. No one knows someone with one. Pin connections wouldn’t bend. Used it for over two hours ago. First time seeing two blue screens in a while. Maybe I reinserted the CPU. It showed “service exception not handled.” So I executed two commands from an article—SFC, system file checker, powershell…
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VeroPlayz
06-30-2022, 02:58 AM #3

Lack of a spare GPU. No one knows someone with one. Pin connections wouldn’t bend. Used it for over two hours ago. First time seeing two blue screens in a while. Maybe I reinserted the CPU. It showed “service exception not handled.” So I executed two commands from an article—SFC, system file checker, powershell…

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GoldnerFamily
Junior Member
17
07-01-2022, 06:41 PM
#4
5700x requires a dedicated GPU to boot. I’d test the 5700XT in a different PCIe lane on your motherboard to reach UEFI, then enable PCIe 3.0 on the PCIE_1 port. Otherwise, it might point to a GPU, motherboard, CPU, RAM, or power supply problem. It’s tough to diagnose without a spare GPU on a system without an integrated one.
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GoldnerFamily
07-01-2022, 06:41 PM #4

5700x requires a dedicated GPU to boot. I’d test the 5700XT in a different PCIe lane on your motherboard to reach UEFI, then enable PCIe 3.0 on the PCIE_1 port. Otherwise, it might point to a GPU, motherboard, CPU, RAM, or power supply problem. It’s tough to diagnose without a spare GPU on a system without an integrated one.

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Anselhero
Senior Member
582
07-03-2022, 04:26 PM
#5
I used the GPU in another PCI slot but the problem persists. The PC boots with the bug LED illuminated and the motherboard backlight remains white, even though the GPU is connected. Without it, the debug lights cycle through and then turn off, resetting the backlight to red. The keyboard and mouse also appear online. I reset the CMOS but still have no improvement.
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Anselhero
07-03-2022, 04:26 PM #5

I used the GPU in another PCI slot but the problem persists. The PC boots with the bug LED illuminated and the motherboard backlight remains white, even though the GPU is connected. Without it, the debug lights cycle through and then turn off, resetting the backlight to red. The keyboard and mouse also appear online. I reset the CMOS but still have no improvement.

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simon_allain
Junior Member
46
07-03-2022, 05:07 PM
#6
I replaced the RAM and GPU once more. The system started up correctly. Still, this keeps happening often?
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simon_allain
07-03-2022, 05:07 PM #6

I replaced the RAM and GPU once more. The system started up correctly. Still, this keeps happening often?

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Asmatak
Junior Member
5
07-03-2022, 07:04 PM
#7
Adjust PCIe_1 to version 3.0 because there are occasional problems during bandwidth negotiation and power-saving steps that might lead to unexpected behavior. By default it's set to 'auto', but you can change it if needed. Your GPU and CPU both support 4.0, yet the motherboard doesn't, which could cause issues. It's worth forcing 3.0 to prevent potential bugs during negotiation.
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Asmatak
07-03-2022, 07:04 PM #7

Adjust PCIe_1 to version 3.0 because there are occasional problems during bandwidth negotiation and power-saving steps that might lead to unexpected behavior. By default it's set to 'auto', but you can change it if needed. Your GPU and CPU both support 4.0, yet the motherboard doesn't, which could cause issues. It's worth forcing 3.0 to prevent potential bugs during negotiation.

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Wixxgriffel
Member
191
07-06-2022, 04:29 AM
#8
I'll test it on my motherboard. This information is very helpful. Thank you!
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Wixxgriffel
07-06-2022, 04:29 AM #8

I'll test it on my motherboard. This information is very helpful. Thank you!