GTX 750 overheating issue

[Dinkec28]

Can anyone help,is my GTX 750 dead,it runs fine at idle staying at 30 degrees,but when I launch a game like FIFA 15,it starts lagging horribly,and the GPU reaches 87 degrees,and for some reason it doesn't thermal throttle at that temperature,now I'm running FurMark and now I'm reaching 92 degrees and still going higher,so should I return my card since it is still under warranty?

[QueenDemetria]

Can anyone help,is my GTX 750 dead,it runs fine at idle staying at 30 degrees,but when I launch a game like FIFA 15,it starts lagging horribly,and the GPU reaches 87 degrees,and for some reason it doesn't thermal throttle at that temperature,now I'm running FurMark and now I'm reaching 92 degrees and still going higher,so should I return my card since it is still under warranty?

What 750 do you have? and your other specs as well?

[Dinkec28]

I have a Gainward GTX 750 Single Slot with 2GB of VRAM,has a 1150MHz boost clock,I do not know what the base clock is,I think it is like 1015MHz or something,and that's all i know about the GPU.

My main rig has the following specs:
4GB DDR3 1600MHz Kingoston HyperX Genesis
AMD Phenom II X4 945
Arctic Cooling Freezer 7 Pro Cooler
ASRock N68C-GS FX
Gainward Nvidia GTX 750 2GB
Corsair VS550 PSU(recently upgraded)
WD Blue 1TB HDD
Some kind of LG CD/DVD Writer
MS Sirius Case(a random case all in all)

And those are the specs of my PC.