Opening of every single games will cause system to hard restart on gpu.
No restart happened when using on board.
get another card into yr pc to try,
but since u said the card already replaced, either yr driver, psu or os issue
I am facing same problem as TS. Also using FSP, have sent in for servicing. What is the normal GPU temp?
I did FurMark test, it reaches around 60+ degrees when GPU almost full load & it does not auto reboot.
When game started, reboot loop starts after 30 mins or so of gaming. Anti aliasing off. Using GTX550 TI.
Sounds like faulty gpu


was using fsp aurum 92+ 550w. not even 1 year encountered similar problem (restart loop, see my thread on hwc), went to rma straightaway offered to exchange for superflower (top up some $$ also), after that never gotten that problem liao.
but for me I feel it's a better deal cause superflower is full modular and 650W