What should the temp be for SLI 770's?

[Irrelative]

I have 2 gigabyte superclocked editions. One stays at 73 degrees C and the other one stays at somewhere in the low 40 degrees C. I want to know if those are safe temps and if they will effect my cards' longevity AT ALL, since I don't plan on upgrading for a while. I game for at least 5 hours a day so I want to keep the most longevity possible for my PC.

 

[clutchc]

That would be about normal for being under gaming stress. The 2nd card always runs cooler because it is not always in use or is in limited use even in SLI. As far as safe temps, Nvidia recommends a max temp of 98C: http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-770/specifications

 

[Nackles]

I have the Gigabyte Windforce OC in SLI and mine run about 40c and 50c. My second 770 is almost always 10c cooler than the first one.