New PSU, display not working properly.

Varunz

Reputable
Dec 28, 2014
2
0
4,510
Computer crashed randomly one night and wouldn't turn on again. Assuming it was the power supply I bought a replacement, however there seems to be an issue.

My graphics card has two 6pin slots and when I plug the PSU into both (as my old one was), the computer turns on but there is no picture.
However I do get a picture when I only use one of the slots but at a much lower frame rate.

The new PSU is different to the old one with my build linked below:
http://uk.pcpartpicker.com/user/varun/saved/#savedbuild_1834598
Old Power Supply: http://uk.pcpartpicker.com/part/seasonic-power-supply-s12ii620bronze

I am not particularly knowledgeable so any help would be much appreciated!