im gonna bump this cause im still having this problem with a new PSU and its one of the reccommended PSUs from the sticky. it still does the same thing of it will turn on and everything will load find but in 15 secsonds, it will suddenly restart. I love sleep mode and hate it not working. New PSU, reinstalled OS, turned hybrid sleep on and off. nothing changes it but hibernation works fine. still would like to get this fixed. every time it fails, it messes up my RAID array and activated OC recovery mode in the bios
" found many have the same power on issue (lights everything up for less than a second then shuts down). I called ABS and was told it's not their PSU and to contact Tagan. Tagan's phone number is garbage and you'd have better luck winning the lottery while being struck by a meteor then receiving an email response from"
Thats intresting cause thats when my PSU dies that it did that. i didnt call them but i did email them and they sent me a helpful response the next day and its being RMAed for a newer better model right now. however this isnt the same problem as im having tho i expereinced it.