F5F Stay Refreshed Power Users Overclocking The motherboard displays a black screen while the CPU EZ DEBUG LED is illuminated.

The motherboard displays a black screen while the CPU EZ DEBUG LED is illuminated.

The motherboard displays a black screen while the CPU EZ DEBUG LED is illuminated.

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daerann
Junior Member
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16
05-31-2021, 11:28 AM
#1
My computer specifications are as follows: GPU 3060 Ti, CPU Ryzen 9 3900x, MOBO Tomahawk b450 max, RAM Vengeance 8x2, PSU EVGA 700 BR with 80+ Bronze 700W. The machine functioned properly until I tried to overclock the CPU and RAM. I experienced blue screens of death for about four days before resolving the issue by booting in safe mode multiple times. After that, it worked temporarily, but now it enters a blue screen restart loop. I managed to fix the loop by resetting the system, but now I encounter BSODs, my monitor turns off, and the CPU debug LED lights up. Could this indicate a damaged CPU? I previously had 32GB of the same RAM type, removing one set (black or white), and thought the black one was faulty since the PC wouldn’t power on when it was in that state. I’m not sure if replacing the CPU is necessary.
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daerann
05-31-2021, 11:28 AM #1

My computer specifications are as follows: GPU 3060 Ti, CPU Ryzen 9 3900x, MOBO Tomahawk b450 max, RAM Vengeance 8x2, PSU EVGA 700 BR with 80+ Bronze 700W. The machine functioned properly until I tried to overclock the CPU and RAM. I experienced blue screens of death for about four days before resolving the issue by booting in safe mode multiple times. After that, it worked temporarily, but now it enters a blue screen restart loop. I managed to fix the loop by resetting the system, but now I encounter BSODs, my monitor turns off, and the CPU debug LED lights up. Could this indicate a damaged CPU? I previously had 32GB of the same RAM type, removing one set (black or white), and thought the black one was faulty since the PC wouldn’t power on when it was in that state. I’m not sure if replacing the CPU is necessary.

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jackmack07
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4
05-31-2021, 05:58 PM
#2
It will be costly, but you might view it as a necessary expense for life (some refer to it as a foolish tax). The reason behind this is: EVGA BR is a low-quality power supply unit, barely holding on. And the fact that your PC has lasted so long is quite remarkable. Of course, you forced your system to work hard with overclocking, which eventually wore out the PSU and also removed some parts for good reasons. (As expected.) In short, never compromise on a power supply since it drives everything and is by far the most crucial part inside the PC. It's more vital than your CPU and GPU together. Here, either one of these—CPU, motherboard, RAM, or GPU—is already dead: CPU, motherboard, RAM, or GPU. So, you should definitely consider a new power supply. And this time, opt for a high-quality one. For example, Seasonic Focus/PRIME or Corsair RMx/RMi/HX/HXi/AX/AXi. (All three of my PCs are also powered by Seasonic, with full specifications and pictures in my profile.) For a second opinion on your EVGA BR PSU, refer to the PSU Tier List: https://forums. Check under Tier C, low priority unit. While my advice is to go for a higher tier and personally I use only Tier A, with the new PSU you’ll also need to replace your CPU or motherboard or RAM or GPU. Decide which one(s) are still functional (if not all), then test each component separately in a compatible system to see what remains and what is gone. In conclusion, your case perfectly illustrates why it’s crucial not to cut corners on the power supply—showing you the real consequences if you do. Based on the debug LED, either the CPU or motherboard has failed. The LED indicates a connection issue between the motherboard and CPU, meaning one or both are dead.
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jackmack07
05-31-2021, 05:58 PM #2

It will be costly, but you might view it as a necessary expense for life (some refer to it as a foolish tax). The reason behind this is: EVGA BR is a low-quality power supply unit, barely holding on. And the fact that your PC has lasted so long is quite remarkable. Of course, you forced your system to work hard with overclocking, which eventually wore out the PSU and also removed some parts for good reasons. (As expected.) In short, never compromise on a power supply since it drives everything and is by far the most crucial part inside the PC. It's more vital than your CPU and GPU together. Here, either one of these—CPU, motherboard, RAM, or GPU—is already dead: CPU, motherboard, RAM, or GPU. So, you should definitely consider a new power supply. And this time, opt for a high-quality one. For example, Seasonic Focus/PRIME or Corsair RMx/RMi/HX/HXi/AX/AXi. (All three of my PCs are also powered by Seasonic, with full specifications and pictures in my profile.) For a second opinion on your EVGA BR PSU, refer to the PSU Tier List: https://forums. Check under Tier C, low priority unit. While my advice is to go for a higher tier and personally I use only Tier A, with the new PSU you’ll also need to replace your CPU or motherboard or RAM or GPU. Decide which one(s) are still functional (if not all), then test each component separately in a compatible system to see what remains and what is gone. In conclusion, your case perfectly illustrates why it’s crucial not to cut corners on the power supply—showing you the real consequences if you do. Based on the debug LED, either the CPU or motherboard has failed. The LED indicates a connection issue between the motherboard and CPU, meaning one or both are dead.

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