So i've installed a brand new power supply into the case. I connected it to two fans, and when I switched it on, nothing happened. I was trying this with a few fans to make sure it was working.
Is my psu dead?
More aboutplease help wont power
No, your fans may not get power until you connect the psu to the actual motherboard as well. I would start with everything but the video card and any extras. Conenct the essential components and try again, than start adding things one at a time.