295 Clocks

[Hardass]

Running single GTX 295 MSI. Using evga precision and MSI Afterburner to increase clock and voltage. For some reason neither program will let me increase the clocks past 700/1200 anyone know why?

[Hardass]

Anyone??

[JohnZS]

I might be wrong, but I believe you will need more Mhz on the shaders before you can increase your clock speed over 700. I believe that there is some sort of rule which dictates a multiple between shader and clock. For example 1200 shaders should be good for 6xx clock. But if you want more you will require 13xx shaders?
BTW That is one huge OC. as I believe the GTX 295 has a stock clock of 576, 1242 and 1008 (2016) on the RAM.:)
John

[LedHed]

There is no link between shader and core, that is BS. The only link is if you link the clock speeds.

700/1200 are on the limits of air cooling, you probably need water to go further.

[Hardass]

I found a hack for Afterburner, got card to run 710/1220:D Stock Air.:up:

[JohnZS]

There is no link between shader and core, that is BS. The only link is if you link the clock speeds.

700/1200 are on the limits of air cooling, you probably need water to go further.

Are you sure?
I always thought there had to be some sort of ratio?
Although having said that I believe you are right, the "unlink option" breaks that ratio?!

[justin.kerr]

yes JohnZS you are correct, with no mods, you can only raise the core so much before you have to raise the shader.

[LedHed]

If you unlink the shader they have nothing to do with how they OC (I own a 295)

There is stepping in the shader clocks, but this doesn't effect or having anything to do with your OC on the Core.

[joger]

But even if you unlink them, after a certain point shader clocks will not rise BEFORE you take the core up a step or two. Their difference cannot exceed a certain gap. Try it yourselves, set core to stock and start raising shaders. Once they stop going up, take the core to say 600 or 620 and boom, you can overclock the shaders some more. I should know, I had a dualPCB for 8 months and I got points owith it on the bot :)

[justin.kerr]

Joger is correct, just as others were. lol I have onlky had a handful of 295's but they overclock just like all the other GTX 200's, and for that matter past Nvidia cards..You can only seperate the core from the shader so far, unmodded. nothing new here. :yepp:

[Q56_Monster]

Keep your shaders linked FTW!