hi would like some advise regarding a psu my son purchased from scan approx 3 weeks ago please , he purchased a psu ezcool 700 watt for his system which was received and i fitted for him everthing worked fine for approx 2 weeks then pc would not start completely dead so checked all connections were fine, changed mains lead etc tried everything. finally decided to replace psu with original one and pc booted up fine np. swapped new one back in again still no power completely dead . My son rang scan and was given an rma psu was picked up and when he rang scan couple days ago was told that psu works fine and that he would have to pay £35.00 testng fee and £15.00 pp to return a psu that WAS FAULTY