Compucase HEC High End 1200W Gaming PSU 80+ (Certified, SLI Certified ATX 12V and EPS12V, Active PFC, 14cm Fan, Cable Management System)

I don't understand company selling products with out testing first there is no power cable lucky I had one if you connect it to sli 8 pin one is 6pin you have to convert to 8 pin third gamers like silent machine that power supply when starting game in 2 Minute make noise you think is fan but not is power converter I got Headache nearly smash my pc any way I refund same night bought club 3d power supply £80 cheaper got everything no sound.

was working ok for 6 months then stopped working

This PSU is seriously out of it's depth. Being 80 Bronze rated is just not good enough to compete with the big boys 1200W Platinum rated units.EVGA, Super Flower, Seasonic and Corsair (bit pricey this last one) are your product leaders at 1200WFor a 400W supply, the 80 Plus rating may not be too important, but for 1200W it's a complete deal breaker.Finally, if you have a rig needing this sort of juice you would have to be nuts to be trying to save £10 -20 on anything other than the brands I named above.