How much power do custom loops use?

[gartersnake184]

I am thinking of building a custom loop for my 5960x but need to know how much power they use. My Gpu is a power hungry 295x2, and my psu is 1000w cm silent pro m2. Would I need to upgrade my psu?

 

[InvalidError]

Pumps use 10-20W each, fans use 2-5W each. That won't change the total by much.