amatuer

Hello. I collected the system below on the pcpartpicker site and it shows that there is no problem. Just showing this note ASRock Z690M Phantom Gaming 4 micro ATX LGA1700 motherboard has an additional 4-pin ATX power connector but it is not available on the powerspec gfm 750W 80+ gold certified...

I know my posts have been bad but I am new to this whole thing. I am buying Klipsch synergy s-10, polk audio TSiCS10, Polk TSi300, Yamaha RX-V573 receiver. I need help finding a reasonably priced sub. This is costing $350. I want to stay under $500 total. I have $150 for a sub. I want it to...