/g/ents

Any help much appreciated:

Have a custom build: please see picture attached.

So I plugged the liquid cooling power input into the cpu fan slot and it sparked - since then no graphics is being output by the GPU.

In addition to this the system keeps rebooting itself: power stays on for 30 seconds or so then reboots (it was doing this before it sparked but at intermittent intervals, sometimes 1 minute, sometimes 5)

I have swapped out the GPU so its not this: I'm thinking its either a motherboard component (which would be a pain as they don't stock this motherboard anymore) or maybe the CPU (Quad Core i7)

If anyone has any advice or can recommend an alternate motherboard which is compatible with my other components would be much obliged