hi guys...need some help again...currently my 8600GT is OC to 648/870 and load temp is 70C..my CPU is Pentium D 3GHz OC to 3.8GHz with a volt of 3.12v. and i cant OC my graphics anymore, cz in ATI tools, it will show artifacts...will it help if i lower the temp. of my card? like installing a after market fan...or is the value the max for my card alr? i was hoping to OC my card to maybe around 800/1000...something similar to XFX series..
thanks for ur help
The way I see it, your inability to overclock the card any further is down to one of two reasons, the mosy likely is that you have hit the maximum speeds on the voltage the card is giving the core and/or memory, if that is the case without doing a hard Voltmod to the card there is not much you can do. I do not think it is the heat as 70C for these cards is not huge but It would not be a bad idead to re-apply some decent thermal paste as even if it does not improve overclocking it should lower temps a little.
The other, less likely reason is that your PSU has reached it's max, if I remember rightly it is recommended that you have a minimum 400W PSU for the card, even though the card can only draw a maximum of 75W from the motherboard (no PCI-E 6 pin connexion), I only say this because you have quite a big overclock on your CPU and those muvvaa's are quite power hungry in any case. I doubt it is that but there is an easy way to find out and that is put your CPU back to stock speeds for a moment, reboot your PC and try overclocking the card again, if you cannot go beyond your current settings then it's not the PSU as by reducing your CPU to stock will free up some wattage.