What program/game to test GTX 280 overclock?

[Dutch Guy]

What is the best program or game to test a GTX 280 these days?

And what are the signs of a bad overclock, Core = GFX tearing/lockup/BSOD and mem = sparklies, or is that wrong?

 

[Dutch Guy]

Thanks for the tips guys, I will try ATItools and Furmark, I had ATItools once but it kept giving errors when starting the program even before stress testing.

Stocks clocks on my card are 700/1400/2300Mhz so I don't think I will get any much more out of it but I will try anyway

 

[Dutch Guy]

ATItools is annoying as it starts testing with the 2D clocks so can take a long time, I also ran Furmark for a while and that sure heats up the card, power usage was 50W higher than 3DMark and temp reached 87C with the fan running at 100%/3100rpm but it stayed stable at 2500Mhz memoryspeed.

 

[Dutch Guy]

It shouldn't do....also if you set the clocks with rivatuner it should force it into 3d mode as soon as you click "apply"

Do you mean that I set the 2D speeds to the same speed as the 3D speeds?