Ok pc is dead, daughter turned pc on and fans span up etc but didn't make it past post and into windows. Have change fuse in kettle lead, still nothing, no lights on motherboard even before pressing power button. All other items monitor, printer, ext hdd have power. Can i safely assume psu is dead. Corsair tx650 19 months old purchased as part of a ocuk system. Manual says 5yr warranty so do i rma it with ocuk or have to contact corsair ? In the mean time is there any other checks i can do ? Have seen xfx 850 psu on this week special offer any good ? Could get this to try while i rma the corsair. Would psu have taken anything else out do you think ? OS is on ssd so hopefully hdd is ok. Thx in advance.