Originally Posted by i_max2k2
my mistake for not reading enough, but this so far has been the most useful post, thank you, so I should create a new vid and then mark it for 1.32 or watever voltage required right? thx again
well, here's the tricky part... this *probably* isn't true for desktop cards, but for laptop cards, and in particular for the 7900gs, you can't just create a new VID.. you have to use the existing ones. That's why you can change the voltage of a 7900 gs to 1.0v or 1.24v. Anything diferent from these values are regarded as one of these 2.. ie. if you set a voltage of 0.8, it will in effect be 1.0.. There are different opinions of this, and you can read them in old threads (1 year ago or so..) but, based on testing, you get similar OC values by having a custom VID (with custom volt settings) or a preset VID (with the 1.0 or 1.24v voltage). What you want to make sure with the 7900gs is that you're using VID 7 (1.24v) for 3D. With this setting, I can go as high as 650 mhz (stable) on the core. Being my 7900 a rev 1. I can only go up to 590mhz on memory before seeing artefacts and eventual crashes.. But you can always play with delta values to squeeze the last possible performance increase from your card.. Ah, make sure you have a dual pipe heat sink..
edit. I've seen you have a fx2500, so you're set as far as the pipes go... as for the VID, i'm not sure what that card's VID 7 is, just do some research..