Question PSU Swap gone Wrong? PC not turning ON

[Frosty42069]

My old EVGA 850 BQ Bronze was always running on the loud side even while standing idle and the fan was getting out of balance so I changed up for a Corsair RM850e.
I installed the new PSU with its own modular cables (CPU,GPU,motherboard), but eventhough the Motheboard makes lights while OFF when I try to start the PC it cranks for a milisecond and then it just lights up the RAMs and power button and shuts "OFF" while leaving those lights ON.
Don't know what could've I donde wrong.
Help appreciated.

 

[MrN1ce9uy]

Hello,

I would double-check that you used the proper modular cables for each connection.