I'm facing an issue with my Gigabyte B450M H motherboard. After enabling Secure Boot and accidentally updating the Platform Key (PK) in the BIOS without having a USB stick with the PK file, I didn't have a USB stick with that PK file or anythingI simply clicked 'Update,' and the system prompted me to reboot without saving changes. Now, my system is stuck in a reboot loop, and I can't access the BIOS or boot into Windows. Additionally, the back panel USB ports, Ethernet port, and other components are not receiving power and remain inactive. The screen stays black.
Here are the details of my system:
CPU: Ryzen 5 3600
GPU: DUAL RTX2060 6G EVO
OS: Windows 11 23H2
SSD: Kingston SSDNow 2.5" SATA III A400 Series 480GB
RAM: Kingstom ValueRAM KVR26N19S8/8 2x8GB 2666MHz
MOTHERBOARD: Gigabyte B450M H rev.1.1
I updated the BIOS to [F64] from the Gigabyte website, enabled Secure Boot in custom mode, and encountered this issue after the accidental 'Update PK' action.
I've tried the following troubleshooting steps without success:
1. Restarting the computer and pressing the Del key to enter the BIOS.
2.0 Clearing the CMOS by following the guide I found on Asus support
2.1 I attempted troubleshooting with a PS2 keyboard as well, yet the issue persists. The display remains black, and the backpanel lacks a consistent power supply. Upon the initial power-up, the PC initiates successfully, but after approximately 10 seconds, it enters a repetitive loop reminiscent of pressing the restart button during the system's startup exhibiting a behavior akin to restarting itself. During the first power-on phase, all fans, including the cooler and one GPU fan, operate seamlessly. However, as the system begins to cycle through restarts, the cooler and one GPU fan appear to lose power, akin to a gradual decrease in energy, similar to a battery-powered lamp dimming when the battery is low.
Additionally, it's worth noting that the restart loop behavior can be visually and audibly observed in the video I mentioned bellow. This video provides a firsthand look at the sequence of events, offering both a visual and auditory insight into the recurring restart loop.
Here are the details of my system:
CPU: Ryzen 5 3600
GPU: DUAL RTX2060 6G EVO
OS: Windows 11 23H2
SSD: Kingston SSDNow 2.5" SATA III A400 Series 480GB
RAM: Kingstom ValueRAM KVR26N19S8/8 2x8GB 2666MHz
MOTHERBOARD: Gigabyte B450M H rev.1.1
I updated the BIOS to [F64] from the Gigabyte website, enabled Secure Boot in custom mode, and encountered this issue after the accidental 'Update PK' action.
I've tried the following troubleshooting steps without success:
1. Restarting the computer and pressing the Del key to enter the BIOS.
2.0 Clearing the CMOS by following the guide I found on Asus support
2.1 I attempted troubleshooting with a PS2 keyboard as well, yet the issue persists. The display remains black, and the backpanel lacks a consistent power supply. Upon the initial power-up, the PC initiates successfully, but after approximately 10 seconds, it enters a repetitive loop reminiscent of pressing the restart button during the system's startup exhibiting a behavior akin to restarting itself. During the first power-on phase, all fans, including the cooler and one GPU fan, operate seamlessly. However, as the system begins to cycle through restarts, the cooler and one GPU fan appear to lose power, akin to a gradual decrease in energy, similar to a battery-powered lamp dimming when the battery is low.
Additionally, it's worth noting that the restart loop behavior can be visually and audibly observed in the video I mentioned bellow. This video provides a firsthand look at the sequence of events, offering both a visual and auditory insight into the recurring restart loop.
