hi,

my Leadktek GTX 670 shown some strange thing lately.
the temperature is spiking to 90-100c when in game (watchdogs,far cry 4,fifa 15 and dragon age)

i thought my normal load temp around 75-80c.

idle temp is 40-45c.

i already assemble it, clear dust and replace new thermal.
but still the same.

i dont't OC it.

does my GC went bad?
PSU faulty?

i bought it in 2012. 

yes idle 40-45. right now im typing 44. i use speccy and msi afterburner for temp monitoring.
if i run heavy game it rocket to 80-90 very weird.
last time around 75.