Mac Mini has loud fan noise upon turning on stays on until it begins the boot sequence but turns off right after.

I have a 2012 Intel Mac Mini that just recently begun turning off while booting with loud fan noise. I recently upgraded it to an ssd and everything was working good after 3 days of not using the Mac I turn the mac back on and it makes a loud fan noise with the boot noise and when the Apple logo appears it turns off. The Apple logo is illuminated for half a second before turning off. I’ve tried different ram kits but that doesn’t work. All the connections inside the mac are secured in. Whenever the Mac did turn on the temps are at 39C so I know it’s not overheating and the fan is quiet when it did turn on. I’ve also tried resetting PRAM and SMC but the Mac won’t stay on long enough to let me do that. It’s a 2012 Mac Mini Intel core i5, 8GB of ram. Thanks