Originally Posted by CyberWolf575
Hey i got my new Radeon X1600 Pro 256MB DDR3 its fueled by sapphire///well i dont really know how to oc graphics cards..so could someone help me? thanx alot ill be thankfull for any help
The first step is to buy a decent after-market cooler and some AS5. When they both arrive, take the old stock cooler off and clean all the gunk off of the GPU and if it's on there, the VRAM. Now, apply some AS5 to the GPU and either stick on BGA RAM sinks, or apply AS5 to the VRAM depending on your cooler.
Now, you are ready to start overclocking your card!
Download ATi Tool (I recommend v0.24, but 0.26 is out now) and set it up to find max core. If you're using v0.26, make sure you keep an eye on what's going on, making sure to look for yellow dots (artefacts) on the fuzzy spinning cube. If you're using v0.24, you can leave it doing it's thing and go read a book for 10 or 15 minutes. Now, make a note of the max stable core speed (ie the frequency just before you start seeing yellow dots) and then set it back to stock. Now repeat the same process with the mem (find max) and again, make a note of the max stable speed.
Now, set both the GPU and VRAM to their respective max stable speeds and run some benchmarks, looking out for artefacts while you run them. Now, if you saw some artefacts, you may need to test the GPU and VRAM frequencies using the artefact scanner over a longer period than you did when you were finding the max speeds. If you find artefacts during the more extensive testing stage, just back-off on the relevant o/c (GPU or VRAM) until you no longer see any artefacts after an extended period.
You have now overclocked your graphics card!
It's worth keeping in mind, that most people who overclock their cards, benchmark at one speed (the absolute max) and play games etc at a speed that is 5 or 10MHz less than the max speed at which the card is artefact free. This is usually done so that your card isn't stressed all the time and should help it's longevity to some extent.