GTX285 VGPU and OCP mod

[KingK76]

so far
vgpu =-1.35v
core 795/shader 1700/mem1450
mcw 60 and ram sink

I'm hitting those clocks (792core, 1692shader, 1485mem) with the stock SSC volts (1.22v). I also have the MCW-60 blocks on my cards (SLI). I will try these new mods in the next week or so and let you guys know if I can it push further! As it is now both cards idle @ 30c and under heavy load max out @ 40c.

[Sn@ke:~]

Hey guys I just can't hold my self to ask you guys what sort of gain in FPS you are getting with Vmod? Is it really worth it? Or is it only for benching?

If you could just bench in FPS for one or two game at stock clock and then at overclock mod that would be really nice to give an idea to see if it is worth it or not.

[hehee]

Hey guys I just can't hold my self to ask you guys what sort of gain in FPS you are getting with Vmod? Is it really worth it? Or is it only for benching?

If you could just bench in FPS for one or two game at stock clock and then at overclock mod that would be really nice to give an idea to see if it is worth it or not.

for personal reason.... i just like to make my $$$ worth more than i spend...

[trueg50]

Hey guys I just can't hold my self to ask you guys what sort of gain in FPS you are getting with Vmod? Is it really worth it? Or is it only for benching?

If you could just bench in FPS for one or two game at stock clock and then at overclock mod that would be really nice to give an idea to see if it is worth it or not.

for personal reason.... i just like to make my $$$ worth more than i spend...

Not to mention that it honestly is like crack, you just can't stop volt modding your cards.

I don't know if it is the joy of working with small solder points, or the wonderful aroma of lead solder, but I find it very fun and relaxing.

[Sn@ke:~]

Not to mention that it honestly is like crack, you just can't stop volt modding your cards.

I don't know if it is the joy of working with small solder points, or the wonderful aroma of lead solder, but I find it very fun and relaxing.

I see and I understand, but Could you still make a FPS benchmark on one or two game just to see how many FPS can be squeeze out of a Vmod.

It is kind of sad to see people benching with all sort of benchmark but still never bench with the number one main reason why people buy new card " they want more FPS in game"

[trueg50]

I see and I understand, but Could you still make a FPS benchmark on one or two game just to see how many FPS can be squeeze out of a Vmod.

It is kind of sad to see people benching with all sort of benchmark but still never bench with the number one main reason why people buy new card " they want more FPS in game"

I know what you mean.

Very tough to find info for volt modded cards. What I do is basically look on review sites and see how much of a difference their overclock makes, and you can sort of guess if the volt mod will yield good results.

[Dr.No.pt]

This OCP mod doesn't work in a GTX295, right ?

[crotale]

This OCP mod doesn't work in a GTX295, right ?

No, completely different vreg.

[ChinStrap]

This OCP mod doesn't work in a GTX295, right ?

http://www.xtremesystems.org/forums/...d.php?t=215521

295 vmod thread

[bahlgren342]

Do vmods void being able to step up with Evga?

My guess is yes.

[Dr.No.pt]

http://www.xtremesystems.org/forums/...d.php?t=215521

295 vmod thread

Thanks ChinStrap but what i really need is OCP mod.
My problem is OCP that is kicking in @ 1,2v.
I'm "only" reaching 755 mhz with 1,1875v.

It's great that this OCP is working for GTX285 users. Hope someone find the same for GTX295.



P.S. Sorry for this Offtopic post.

[inzer890]

Hey guys I just can't hold my self to ask you guys what sort of gain in FPS you are getting with Vmod? Is it really worth it? Or is it only for benching?

If you could just bench in FPS for one or two game at stock clock and then at overclock mod that would be really nice to give an idea to see if it is worth it or not.

it's so easy to find plenty of reviews on the net, where the results of OC'd card vs stock clocks are presented. The main meaning of VMods - is to push the limit of stable clocks higher, in comparison with nominal voltage. And after that, You can make your own investigation:do those new framerates worth VMods, or it's better to leave stock?

[10acjed]

Do vmods void being able to step up with Evga?

My guess is yes.

Yeah, Im pretty sure it would be difficult to hide the fact that you soldered wires to your gpu..

the soft mods in the other thread are removable though.....

[bahlgren342]

Well you can always de-solder and use a solder sucker. But it would still probably be hard to hide completely.

No softmod for gtx 285.

[dengyong]

I haven't gained anything from the mods other than the bridges and caps. (stopped at 1.3v core)
My card will clock much higher with the mods, but benchmark scores go way down from my every day clock without the mods (774/1728/1512 actual).
3dmark06 score dropped from 24,000 to a little over 21,000 with anything more than my regular core/shader settings .
I'm not complaining and I thank NapalmV5,cryptic and crotale for sharing their work.
I'm going to tune my vr's back to stock volts and be happy with what I have.

[KingK76]

Here is the VGPU mod for nvidia GTX285 to start with, I will update the thread as soon as I have the OCP mod image done.

I will also post some more info from our Tri-SLI benchmarking at CeBIT 2009.

! IMPORTANT INFORMATION !
These mods have been tested, BUT I take no responsibility for how you use
the mods and what happens to the card. Make sure the cooling is sufficient etc.
The soldering order is crucial, make sure it's done exactly as the images show.

Mod overview:

Image copyright of W1zzard at www.techpowerup.com



This is how it looks when soldered to the card.


We ran 1.4V+ and no sign of OVP.

OCP will trig at some point and here is the mod for that:


Image copyright of W1zzard at www.techpowerup.com

Please post at what frequencies it triggers for you with what type of cooling.

I have a question about the vGPU mod. I know leg 1 and 2 must be soldered to the proper pads where the SMR was. But my question is for leg three. Do you have to solder to the spot shown or can you use any proper ground. You have it labeled as ground so I hope I can just use any proper ground because when I attempted the spot you pictured the wire kind of flipped up before I could secure it and it took off about half of the end I had it soldered to. I took readings before the screw up and it still shows the same reading it's just very difficult to attach the wire there now, not to mention I'm a little gun shy of using that SMD because it took VERY little pressure to pop half the tinned end off. My card is an XFX Black Edition and everything else seems to be of high quality, but even before I attempted that spot I had a bad feeling about the way that SMD looked. It just looked bad to begin with. Anyway I hope somebody can answer this question... It would be greatly appreciated!

Sorry to add this in but I guess I should ask before attempting step 2. The OCP mod. Is leg 3 on that also just a ground or does it have to be soldered to that specific point.

Thanks!

[crotale]

I have a question about the vGPU mod. I know leg 1 and 2 must be soldered to the proper pads where the SMR was. But my question is for leg three. Do you have to solder to the spot shown or can you use any proper ground. You have it labeled as ground so I hope I can just use any proper ground because when I attempted the spot you pictured the wire kind of flipped up before I could secure it and it took off about half of the end I had it soldered to. I took readings before the screw up and it still shows the same reading it's just very difficult to attach the wire there now, not to mention I'm a little gun shy of using that SMD because it took VERY little pressure to pop half the tinned end off. My card is an XFX Black Edition and everything else seems to be of high quality, but even before I attempted that spot I had a bad feeling about the way that SMD looked. It just looked bad to begin with. Anyway I hope somebody can answer this question... It would be greatly appreciated!

Sorry to add this in but I guess I should ask before attempting step 2. The OCP mod. Is leg 3 on that also just a ground or does it have to be soldered to that specific point.

Thanks!

Yes, leg 3 in both cases are ground.

[KingK76]

Yes, leg 3 in both cases are ground.

Thanks for that! What a relief! I was worried I wouldn't be able to do the mod.
I'll let everyone know how it goes once I'm done. It will be on the weekend.

[EL RICHARDO]

I'm getting GOOD results with the vGPU mod... Thank's crotale!!! 1 (maybe silly) question... If later on i want to sell my card do i need to solder again the resistor from the vGPU mod?

[crotale]

I'm getting GOOD results with the vGPU mod... Thank's crotale!!! 1 (maybe silly) question... If later on i want to sell my card do i need to solder again the resistor from the vGPU mod?

Either that, or any other zero ohm SMD resistor, or just a blob of solder between the two pads.

[EL RICHARDO]

Either that, or any other zero ohm SMD resistor, or just a blob of solder between the two pads.

Thanks! I am also having GREAT results from the OCP mod! In 3DMark 06 with my current clocks 756c/1692s/1404m i was getting instant black screens... Now they are GONE! Thanks again!

[Sebastione]

Hello, my PNY card is currently under water doing 760/1700 24/7 stable on 1,13 V
Given that max stable on air was about 720/1555 I find this a nice increase.

I´m interested in doing the Vmod now. Which voltages will be usable 24/7 for gaming without frying the chip? Someone said under 1,5 Volt but isnt around 1,4V on water still too much for a chip that comes at 1,13 V? Any suggestions ?

Thanks Sebastione

[EL RICHARDO]

In OCP mod when the 100K VR is soldered it measures between leg 2 and 3 with max resistance 21.3K ohms... Is this right?

[Hazzan]

very nice indeed guide tutorial VMOD on GTX 285...

[trueg50]

For the vGPU mod; I was going to use a slightly different VR; would the numbering (and corresponding connections) be the same with this model ?



When ever the heck my card comes in (I won it in the Bjorn3D folding contest back at the beginning of March, and am still waiting on it) I am definitely doing the OCP and vGPU mod, as well as possibly removing the IHS. I will certainly post results once I mod it.