Coolmax I-400 not working properly

[jacpearce4]

Hi, I recently bought a Coolmax I-400 400W ATX 12V V2.0 PSU for my PC to make way for a GTX 1030 I'm getting tomorrow. I plugged it in, all the pins are connected, fans are running (albeit louder, though I chalked that up to the increased power) and my computer makes the same sounds as it always has when I boot it up. My issue is that I'm not getting any video signal. I'm running two HP S2031 1600x900 monitors through an i3-2130 with Intel integrated graphics (hence the need to upgrade to a GTX 1030). I'm also not having the blue power light along the top of my PC lighting up. Does anyone have any idea what could be wrong?

 

[jacpearce4]

Okay so I've replaced the coolmax 400W PSU with my old Dell 300w PSU, it was a cheap 20-30 dollar PSU so I'm really not all that concerned about it. I'll find a better PSU for my GTX 1030 later. I should have read the reviews on it, because by the looks of things coolmax has never actually made a decent power supply