Unlocking 7800GT to 7800GTX

[kamranziadar]

Ok i just ordered a EVGA 7800GT, but i was thinking is there any possibility of unlocking all 24 Pipes for GT.

Because both GT & GTX is similar in every point expect 20 Pipes for GT to 24 Pipes for GTX.

Did any body tried with Riva Tunner to unlock the rest of the 4 pipes ?

 

Alot of people have tried, but none have done it yet AFAIK.

 

[MBrown]

I've heard two things. One with the version of rivaturner you werent able to unlock and two nVidia made it so that you could not unlock the pipeline. I wish niether were true.

 

[kamranziadar]

I heard Nvidia just disabled the 4 pipes. There must be a way to unlock it, there are 24 pipes but 4 pipes are disabled just like 6800NU

 

[Diasper]

It depends whether they merely disabled them with the bios or laser cut the extra lanes to make them utterly inoperable...

As far as I can tell ATI and NVIDIA have taken to laser cutting them. Certainly that was the case with only AGP parts being unlockable and not PCI-E - AGP they only disbaled and didn't laser cut them. eg X800 Pro (Vivo)

 

[kamranziadar]

Laser Cut what?

 

[entropy1982]

Originally posted by: Diasper
It depends whether they merely disabled them with the bios or laser cut the extra lanes to make them utterly inoperable...

As far as I can tell ATI and NVIDIA have taken to laser cutting them. Certainly that was the case with only AGP parts being unlockable and not PCI-E - AGP they only disbaled and didn't laser cut them. eg X800 Pro (Vivo)

what about x800GTO2

 

[crazydingo]

Arent the GT cores yeild binned GTX cores? I mean those GTX cores with bad yeild (only 20 pipes instead of 24 working) are used in the GT.

 

[Keysplayr]

I haven't heard of anyone successfully doing this with any make 7800GT anywhere.
If the additional quad is in fact laser cut, there is no hope for an unlock. If it is done in bios or software, then there is some glimmer, but I don't think Nvidia wanted a repeat of the AGP 6800nu.

 

[Avalon]

Maybe we'll see an oddball of a card from Nvidia sometime soon, much like ATI's X800GTO squared. Why not? We seem to get those special cards every generation. Remember eVGA's 6800"LE" ?

There's no doubt in my mind we'll find something like those cards again.

 

[kamranziadar]

Here is some information for you guys who think they lasser cut the 4 pipes

Text

 

[CraigRT]

I thought I read the pipelines were disabled by scissor method so to speak.. they are cut from the core, not unlockable whatsoever.

I don't think it's possible to make a 7800GT, --> GTX, but the overclocked GT with good cooling can bench alongside a GTX so it doesn't matter anyways!

 

[aka1nas]

Originally posted by: Diasper
It depends whether they merely disabled them with the bios or laser cut the extra lanes to make them utterly inoperable...

As far as I can tell ATI and NVIDIA have taken to laser cutting them. Certainly that was the case with only AGP parts being unlockable and not PCI-E - AGP they only disbaled and didn't laser cut them. eg X800 Pro (Vivo)

Actually the PCIE 6800 was a physically different chip than the the 6800 Ultra that natively had 4 fewer pipes. Hence, there was nothing to re-enable as the other 4 pipes didn't exist. The AGP version was a binned 6800 Ultra chip with pipes disabled.

 

[Fallengod]

Does it even matter. A GT is within 5-15 fps max of the GTX. Thats already not even noticeable. Lower ingame texture quality a tad, and optimize other game settings = more fps.