Hiya All!

That would be your RAM, please fill I the system specs and we can work it from there.

Be advised a Corsair (i) power supply will cycle one time if it has be removed from power. It is designed to do that. It is testing itself.
It will also turn it self on and off if it senses a short to any thing that it is plugged into.
Example:
If one has a shorted fan or lights the (i) Corsair power supply will sense it and cycle or shut down. I learned that the hard way.

Check your connections, the PSU is pumping itself

First off lets try to stick with some sort of basic computer terms.
Pumping is not one of them.

If your power supply is turning on and off it probably detects a short from something that is plugged into the power supply.

The first thing I would recommend checking is the motherboard stand offs. If their is one in the wrong place or a extra one it could short the motherboard.

It also helps to build your system outside the case first to make sure it works before you put it all in the case.
If everything works outside the case and you have problems after installing in the case you have installed something in the case wrong.

Hey, Flax (hear you make some good oil... ) welcome to the forum.

You might want to check out this set of videos as well: Newegg TV: How To Build a Computer - Part 1 - Choosing Your Components - YouTube

Building, maintaining, and working with computers isn't all that difficult really, but it's good to have the basics down first so that you don't inadvertently mess something up.