Hey everyone, I'm having a bit of trouble after swapping out my power supply unit (PSU). Here are my system specs: I've got an Intel Core i7-12700K, 16GB of RAM, and around 4.5TB of storage. I switched from a GTX 960 to a new RTX ASUS Prime 5070, and also replaced my Corsair RM650W PSU with a Thermaltake GT750W. Ever since I made the change, my desktop keeps going straight to the BIOS on startup instead of booting up.
In BIOS, it's not showing any boot options. My SSDs are visible in the BIOS but not in the boot menu. This is the first time I've done anything like this since I got a pre-built PC back in 2022, so I'm feeling a bit lost. I've double-checked all the PSU cable connections, and everything seems secure.
Right now, I'm not connecting the GPU because I wanted to make sure the PSU works well with the motherboard and other components first. I'm hoping it's just a small issue like a cable in the wrong port. Any advice would be super helpful!
2 Answers
Another angle to consider is checking your BIOS settings. When you switched off the power, it might have reset to factory settings. Make sure your boot mode is set to UEFI, as Windows usually installs in that mode. Also, check the Secure Boot setting—if it’s disabled, try enabling it; if it’s already on, try disabling it. Switching GPUs shouldn't affect this but changing the PSU could have reset some configurations in the BIOS.
It sounds like you did a good job connecting everything since you're getting to the BIOS. A good first step would be to try clearing the CMOS. It can reset your BIOS settings to their defaults and might help resolve the boot issue.
Thanks for the advice! I did try adjusting the Secure Boot settings in my Asus UEFI BIOS after reading your suggestion, but it didn’t help—still boot looping. The option to change my boot mode also seems like it’s missing. I watched a video that suggests I might need to install my GPU first to access those options. I’ll give that a shot and see what happens!