I just got this card and it is idling at 63-65 degrees Celsius, at load on valley benchmark i get about 75-80. Also, air flow is not the problem, I've testing 3 other msi gtx 970s and they idle around 35-40 in this exact case.
RIG:
i5-4790k
asrock z87e-itx
corsair vengeance 2x4gb
Corsair ax 760
EVGA GTX 970 FTW+
Corsair 250d
RIG:
i5-4790k
asrock z87e-itx
corsair vengeance 2x4gb
Corsair ax 760
EVGA GTX 970 FTW+
Corsair 250d