technical query

Hi guys I'm wondering whether my APC 1100 ups be enough for a 1000 or 1050w psu. the expected PC build is: Ryzen 7 7700X(AIO cooled) , RTX 3090 32 GB RAM 2TB NVMe SSD and expecting 4 to 5 case fans. Is a 1000w PSU overkill or not for this build (along with the above UPS question) ?

My PC won't turn on! so lately my PC has been having issues turning on, i press the button and often nothing happens, if i try several times however it will eventually boot I've been told it could be my SSD due to windows being on that, but also feel like it might be my PSU or other, I just want...