K, so I'm fixing the computer at my aunt's that isn't running right, and it turns out the fan is messed up. I looked for the same fan, not available, and the company's website doesn't even have a record of them making it. It's a 120 MM fan, would you think and fan the same size, that fits the case will work fine? As long as it throws say, 50 CFM? The pc is all stock, pentium 4, all I know. On board gfx, help?