Runamuck

I have a 2018 Corsair One, it has a SF500 PSU unit in it as the power supply. Very recently, the PSU fan has malfunctioned….creates a very loud grinding/whining sound when machine is powered up. I’ve done troubleshooting of all components and can tell it’s the white fan motor in the SF500 that’s going/gone bad. The machine is old but still useful if I can replace that PSU. I understand that the SF500 wasn’t ever really sold individually. Is there another replacement SF unit I could purchase as a replacement that still fits in this case?