Hey everyone! I'm having a major issue with my new computer build. I've got a TUF GAMING B850-PLUS WIFI motherboard and an AMD Ryzen 7 9800X3D CPU, paired with a 750W PSU and a single 16GB RAM stick. After working on it for a week, the motherboard was lighting up with a solid yellow indicator, which I discovered was due to the RAM not being properly seated. I've fixed that, so the yellow light is gone now. However, while everything else lights up as expected, the PC refuses to start. None of the fans are spinning, and apart from the motherboard's RGB lighting, it seems completely unresponsive. I've double-checked the front panel connections and the fan connections. Any tips on what I should do next? I can't post images directly, but I have a link to a pic of the build.
6 Answers
Quick question: Is your RAM DDR5? Make sure that it’s compatible with your motherboard.
Do you have a spare AM5 CPU to test with? If not, recheck the installation of your CPU and ensure there are no bent pins.
I don't have any spare CPUs to try out.
Make sure to double-check your front panel connectors. Are they full connectors or separated into individual pins? This is a common area for mistakes that can prevent the start signal from reaching the motherboard.
They are separated, and I've played around with them a lot. I think I've connected them correctly by now.
Have you checked for any other debug lights on the motherboard now that the DRAM light is off? Sometimes there can be a red or white LED to indicate other issues.
There are no debug lights showing up. I've added an image link to the post as well.
What's the exact model of your PSU? Sometimes, issues can arise from older or incompatible power supplies.
I'm using a Corsair CX Series CX750 750 Watt PSU.
It might be worth trying the RAM in different slots, just in case there's a specific slot that's not working. Also, ensure that your CPU fan is securely connected to the motherboard as well.
I've tried all the RAM slots, and I've made sure the CPU fan is plugged in.
Yes, it is DDR5, and it's listed as compatible on the Asus website.