CPU LED Debug Light

[Aspect1089]

About a month ago, I built my computer. I have a b550 tomahawk max, but CPU, DRAM, VGA, and BOOT leds were all lighting up at different times. I RMA'd the motherboard and I just got it back yesterday. I built my computer today, and only the CPU light was lighting up this time. Everything else was working fine. The AIO fans were spinning, and the case fans were working. I tried resetting the CMOS battery, reseating the ram, and reseating the CPU and 24 pin cables. Please help, I really don't want $1500+ to go to waste, or have to wait another 3 months to build it again.

Specs;
-16gb Trident Z RGB
-R7 3700x 
-MSI B550 Tomahawk MAX

[RONOTHAN##]

Did the system boot last time? Also if you have a modular PSU, did you check to make sure that the cables are connected fully on that end of the board? Also did you check the 8 pin CPU connector?

[Aspect1089]

5 minutes ago, RONOTHAN## said:

Did the system boot last time? Also if you have a modular PSU, did you check to make sure that the cables are connected fully on that end of the board? Also did you check the 8 pin CPU connector?

No it did not boot last time, I have a fully modular PSU and I did check all the cables. I checked 8 cpin CPU connector and 24 pin connector and they were both good.