7800 GS potential
I posted here as a guest quite recently, but decided to register.
I have as 7800 GS and the stock speeds are 375/1200 and I oced to 500/1500 but cant go any further.
I got a 500Watt Q-tec Psu and I have the Card on its own rail not sharing with anything. All my over devices are on the other rails. The card is made by XFX so the cooling is pretty cool (lol) and when playing games at OCED speeds the temp is only 50 degrees on load.
How can I get more power to the core for higher speed?
I have as 7800 GS and the stock speeds are 375/1200 and I oced to 500/1500 but cant go any further.
I got a 500Watt Q-tec Psu and I have the Card on its own rail not sharing with anything. All my over devices are on the other rails. The card is made by XFX so the cooling is pretty cool (lol) and when playing games at OCED speeds the temp is only 50 degrees on load.
How can I get more power to the core for higher speed?
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I haven't read this but I've deduced it from the design of the cooler and the limits the GS faces as far as GPU speeds are concerned. It would only stand to reason that the bridge chip (Which is another link in the chain of failure) will be as responsible as the actual GPU in terms of performance limitations due to it serving as the interface between the GPU and the PC.
What OCing solution are you using? RivaTuner? Coolbits1 or 2?
Also, when you say you cant go over 500/1500 does that mean the hardcap is as 500/1500 or do you start artifacting after those speeds?
No, there is no cap. You have to physically short some parts of the card to get to 1.5 volts. The voltage controller for some reason is limiting voltage to something like 1.25 volts which keeps you from getting much of an OC. There is a link here on the forums here somewhere that was posted last week that shows you how to unlock the voltage and get your 7900 GT to 710 stable.
P.S. here is the link: http://www.short-media.com/forum/showthread.php?t=43857&highlight=7900GT
Also, here's a link to Shamino's post on how to unlock 1.55v using a conductive pen to get upwards of 650 -700 on the GPU.
http://forums.vr-zone.com/showthread.php?t=66989
I plan on making this mod and slapping on 2 Zalman Fatil1ty coolers on em. these cards idle very cool even at the 1.7v mod.