GTX 280 voltmod thread

[Parad0x]

low res pics attached, high res front and back pics available from TPU

EDIT: unmoded pics untill the vmod will be done & confirmed working

[Justifire]

Do we need to see a vmod or what?
I see nothing on those pics.

[#Mike]

The idea is that as soon as they are on the web, they will be posted in this topic, i guess.

[DMH]

Yeah I guess that's the reason this thread was open
PS:looks so much the 8800GTX/Ultra

[HaCKs]

Wow that chip seems HUGE to me, or am I going crazy?

[DMH]

Wow that chip seems HUGE to me, or am I going crazy?

The chip itself it's not that big but it has IHS over it like a CPU

[K404]

top pic- please can you identify the square chip on the bottom right near the capacitor?

Also- the 8-pin chip in the middle of the triangle between the SLI connector and the left + top RAM banks, as well as all the ICs under the I/O chip?

Is the space for an 8-pin chip beside the 6-pin power plug populated?

Cheers,

K

[Dümpler]

Source: Vr-Zone

[HaCKs]

The chip itself it's not that big but it has IHS over it like a CPU

Oh, now don't I feel stupid. I LOVE that idea though, no more cracked core with water black installs. Sorry for the thread hijack, back to Volt Modding!

[Parad0x]

Do we need to see a vmod or what?
I see nothing on those pics.

Thanks for the heads up. Forgot to mention that my first post contains pics of unmoded cards. Edited

top pic- please can you identify the square chip on the bottom right near the capacitor?

Also- the 8-pin chip in the middle of the triangle between the SLI connector and the left + top RAM banks, as well as all the ICs under the I/O chip?

Is the space for an 8-pin chip beside the 6-pin power plug populated?

Cheers,

K

The best i could zoom into that front side lower right corner voltage regulator chip seems like a Volterra VT138***.

Both Zotac and POV cards reviewed on TPU have the 8-pin chip beside the 6-pin power plug unpopulated.

We need better pics

[Parad0x]

found a high res pic of the Volterra VT1165MF voltage controller, same one used for ATI R600

The voltage regulator area is very crowded, it uses Volterra's VT1165MF voltage controller, which allows software changes of the board voltage up to 2.0V - the default is 1.0V.

SOURCE

[Dural]

vmod for Memory?

[ownage]

found a high res pic of the Volterra VT1165MF voltage controller, same one used for ATI R600

SOURCE

In other words. Software voltage change should be possible.

[Parad0x]

In other words. Software voltage change should be possible.

My thought exactly

it seems that the 9800GX2 uses this voltage controller too. An updated version of ATITool or RivaTuner that could modify the voltage for these cards will pe pure pr0n.

[W1zzard]

We need better pics

make canon release the eos 5d successor faster then you get better pics

[Parad0x]

make canon release the eos 5d successor faster then you get better pics

Howdy there W1zz. By any chance the new versions of ATITool will interact with the Volterra chip on the 9800GX2/GTX280?

[rodman]

I knew voltage adjustments would be available awile ago as Nvidias own system monitor has voltage adjustments for core and memory right next to the gpu/shader and memory sliders. I think Nvidia will drop the 'bomb' in a future driver release shortly

[Renegade5399]

I sincerely hope that software control will be made available. That would be a major selling point for me.

[HitandRun]

I sincerely hope that software control will be made available. That would be a major selling point for me.

Agreed!

[largon]

So, any OC'ing results for GTX 260 & 280?
How do they respond to voltage?

[VETDRMS]

I have spent most of the day modding an EVGA 280 GTX HydroCopper. I will be posting results with pics, ect later this weekend. Its a hot chip, no doubt.

It does not respond to voltage over 1.350 and Riva/EVGA Precision cannot clock it over 800 mhz. Only way to get higher is by using Nibitor and flashing a BIOS.

[HitandRun]

I have spent most of the day modding an EVGA 280 GTX HydroCopper. I will be posting results with pics, ect later this weekend. Its a hot chip, no doubt.

It does not respond to voltage over 1.350 and Riva/EVGA Precision cannot clock it over 800 mhz. Only way to get higher is by using Nibitor and flashing a BIOS.

Nice looking forward to your results / pics!

[Justifire]

I have spent most of the day modding an EVGA 280 GTX HydroCopper. I will be posting results with pics, ect later this weekend. Its a hot chip, no doubt.

It does not respond to voltage over 1.350 and Riva/EVGA Precision cannot clock it over 800 mhz. Only way to get higher is by using Nibitor and flashing a BIOS.

If you use Rivatuner 2.09, try to unlink core/shaderclocks, and altough it shouldnt matter, up your shaderclock a bit and see if core will go over 800.
Somehow those shaders lock the max core clock.
What's your result this far?

[Renegade5399]

Bump for results!

[rodman]

If you use Rivatuner 2.09, try to unlink core/shaderclocks, and altough it shouldnt matter, up your shaderclock a bit and see if core will go over 800.
Somehow those shaders lock the max core clock.
What's your result this far?

The core max can only clock to half the shader clock. Example if you have shader clock set to 1500, than 750 core is as high as you can go. So 1450 shader would be 725 core and so on. Linked or unlinked the rule stands.

Why is it taking so long for driver level voltage adjustments? I have asked Unwinder to look into this support with Riva Tuner, he has yet to get back to me on this