Comp wont turn on after installing water cooling

CPU block isn't seated correctly and shutting down due to thermal? Are you sure your pump is powered and pushing coolant? If it isn't cooling your CPU, a waterblock isn't a very good passive cooler.

What WC setup did you install?

Custom made...meaning what? Actually designed and milled, or just 'chosen' and installed?

Okay, lets get past the 10 questions. Please post the list of parts you bought, and post pics of the setup.

You probably mismounted something, have massive air in the loop, or some other issue. Since you bought the parts from a real store I guess they should be able to help you out hoprefully.

OK, heres couple of pics of my setup...

The pump

Radiator



I bought:

A chinese made pump
Radiator
CPU waterblock
T shaped plastic thing?! attatched with the outflow tube (don't know what it is)
No water bottle, i used plastic tube instead

waterblock: made by OCQQ www.ocqq.com
Pump: Jingway DP-400 [url=http://www.jingway.com.tw/en/products.html][/url]

OK, so i've just tested the power with my multimeter, psu power runs fine but the mb atx12v power plug was fried , and some parts were running hot

I would recommend buying a pump with external power, that way you don't have to use up power from the PSU. Unless you want to buy a new power supply with high wattage and amps, and that would cost a nice sum.