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Question Upgraded to a bigger PSU and now PC won't even power on

Apr 17, 2020
So I upgraded from a 750w EVGA 750bq to a 1000w Corsair rm1000x but now when I hook it up exactly like the old one my PC will like flick on for a split second and not actually turn on.
PC specs are a i9 9900k on an asrock z370 killer Mobo a 1080ti founders edition gpu 2x16gb 3000mhz ram a 500gb SSD and 1tb hdd CPU is water-cooled. Any help would be greatly appreciated