Dwarf

Hi kicsiork,

If FightingScallion's advice works, then have a close look at the fan on your graphics card. Does it actually spin when your system is powered up? Chances are, because your card was 2nd hand, that the fan blades are covered in dust which prevents the fan working as effectively as it should. To rectify this, use a can of compressed air to blast the dust away (make sure that your system is powered down before you do this). At the same time, clean the other fans in your system by the same method. If you are overclocking your graphics card, go back to the manufacturers settings. GPUs are manufactured using a similar process to CPUs, and, like CPUs, they are manufactured on wafers which are then cut up into the individual dies which then become the actual chips themselves. The dies on the wafer are rated to run at a certain frequency, and some of these dies can be successfully overclocked without causing problems. It is possible that 2 neighbouring dies on the same wafer behave differently - 1 of them can be overclocked by upto 20% whereas the other can cause problems if overclocked by as little as 1%.
Dwarf