Question pc crashed and doesnt show video anymore

[AugustoNogs]

I was using my computer, it froze and wouldn't accept any commands. I turned it off through the PSU and left it there. After that it didn't turn on anymore. I've tested a different psu, I've changed the power cable, I've tested taking out a memory stick and putting it in different positions, I've tested a different gpu.
It turns on the CPU light, goes to the DRAM light and stays on them for about 10 seconds, and when it goes to the GPU light it stays on for about 2 seconds and restarts, after that it alternates between the CPU and DRAM light.
but at no time does it show video

 

[rgd1101]

full system spec? include brand and model of the psu

 

[AugustoNogs]

full system spec? include brand and model of the psu

Gigabyte b760m e
i5 12400f
24gb kingston fury 5600mhz ddr5
gtx 1660 oc gaming
psu cooler master elite nex w600

 

[Phaaze88]

psu cooler master elite nex w600

PSU Tier List rev. 17.0g - Cultists Network

PSU Tier List will help you to choose the best PSU out of hundreds of models on the market. From budget to the highest end Power Supplies.

cultists.network

Found the unit under Tier E, so that's a bad sign.

I've changed the power cable...

You used the cables that came with the power supply?


Not much more can be done here than to swap more parts; the F-SKU cpu is putting a wrench in things, because if there was an iGPU, you could at least try to continue the troubleshooting process with it.

Get a cpu that has an iGPU and is compatible with your motherboard, take out the gpu, and see if you get an image.
Also, get a higher quality power supply to go along with it.