How hot should I let my GT430 get?

I have a Galaxy GeForce GT430 graphics card and Iv'e OC'ed at 900mhz for my core clock. I run crysis at very high settings and the temp is stable at about 62 C. Is this to high of heat for my GPU? I have a 120 fan at 90%.|||It is a perfectly fine temperature for your gpu. I wouldn't go over 80c though, then thats a little risky. Its perfectly stable, and you could maybe lower the fan speed and reduce the noise that fan is giving off.