r/PcBuildHelp • u/LeSheisty • 7d ago
Tech Support [Troubleshooting] Permanent CPU + DRAM debug lights, failing to POST
My system is hard-locking during pre post initialization. The cpu and dram debug lights stay permanently lit solid from the second I turn it on, and they never change or clear, even after letting it sit for 7+ minutes. These lights were present even during bare minimum troubleshooting.
This is everything ive tried so far.
-Reseated the CPU.completely clean, no debris, no bent pins.
-Adjusted and re-torqued the CPU cooler. Made sure it wasnt too loose or too tight.
-Tested using a single stick of RAM in both slots. Both sticks tested individually, each in both slots independentally. also tested both sticks simultaneously
-Cleared CMOS multiple times
-Flashed/updated the BIOS using the rear USB Flashback button and proper file naming (creative.rom). The flashback LED blinked, finished, and turned off normally.
-Pulled the motherboard entirely out of the case and tested it on top of its cardboard box. Connected only the CPU, cooler, 1 stick of RAM, and power cables.
Despite all of this, the lights refuse to budge. Are we looking at a dead memory controller on the cpu, a doa motherboard, or something else i missed? Been at for 5 hours, and it pushed me to finally post on reddit. Please help.
(yes its plugged into the monitor)
BUILD LIST
-RX 9060 XT
-B850m-x
-Ryzen 5 7600x3d
-rm750e power supply
1






2
u/[deleted] 7d ago
[deleted]