I'd say: No.
You have blower-style GPU, without heavy heatsink, as open air styles GPUs would have it, making them heavier and maybe needing GPU bolster. But since your blower-style GPU weighs less than open air styles GPUs, i don't think there's a need for GPU support.
Though, if there may be a small sag and that annoys your eye, then sure, for your own peace of mind, you can get GPU support.