old corsair h75

Hello, I decided to watercool a MSI 2070 super ventus with an old Corsair H75 AIO I had married to a kraken G12 bracket. Installation went fine. The problem is two fold. Possibly three. First, coolers that fit that G12 bracket are hard to find so finding a replacement is almost impossible. I've...

My friend gave me this Corsair H75 AIO ( https://www.corsair.com/ww/en/Categories/Products/Liquid-Cooling/Single-Radiator-Liquid-Coolers/Hydro-Series%E2%84%A2-H75-Liquid-CPU-Cooler/p/CW-9060015-WW )She's not sure though if it's still working since it's been with her for few years without using...