8800GTS 512Mb (G92) vMods

[STEvil]

Thanks T_M

[aussie-revhead]

T_M , I cant test it now but iirc it was pretty close to that which I set it at , maybe a little higher . As I was saying I can bench at 910 at 1.4v with 51 degrees temp but cant complete a test at 850 / 1.5v 52 degrees , then again it probably doesnt even get that hot as it doesnt even take a load , or maybe for 1-2 seconds.

[T_M]

Load volts are higher than idle, by as much as 0.1V.
Thats why im asking what are your load volts when the card freezes.

[aussie-revhead]

I will test it when I can , but at 1.3v in bios I get 1.33v loaded so it rises but not 0.1v at this voltage .

Yes I get that driver reset thing when it crashes - nv failed to repond - or something to that effect - please restart pc to regain full function . This is sometimes accompanied by display resolution setting itself to 640x480 .

How can I futher reduce loaded temps ? Im using a dedicated gpu loop with 1x360 rad , EK full block and a little DB-1 pump . I was told a bigger pump wont reduce temps .

Where can I find the OCP mod for these ? Is it hard to do / worth doing ?

[Zeus]

I will test it when I can , but at 1.3v in bios I get 1.33v loaded so it rises but not 0.1v at this voltage .

Yes I get that driver reset thing when it crashes - nv failed to repond - or something to that effect - please restart pc to regain full function . This is sometimes accompanied by display resolution setting itself to 640x480 .

How can I futher reduce loaded temps ? Im using a dedicated gpu loop with 1x360 rad , EK full block and a little DB-1 pump . I was told a bigger pump wont reduce temps .

Where can I find the OCP mod for these ? Is it hard to do / worth doing ?

I don't know that pump but if it's very weak it might help to replace it.

You can try some more powerfull fans on the rad.

How's the contact with the block and what thermal compound did you use?

Also, a cooler ambient helps.

Today i ran 3d mark 01 and 06 at 1.35Vgpu with the stock cooler at 881 core 2125 shaders and 1130 memory, so that's looking good.

Aiming for 900/2200/1150 with watercooloing though.

[cole2109]

I have only tried to lower the vmem . Right now it's at 1.92v .I got the mod from jason4207 via PM , but i haven't asked him if i can publish it . The best way is to send him a PM for information . I don't either like this "secret" mod , but it's not my choice since it wasn't me who found it .

Right now i have the card watercooled with vgpu & reverse vmem mod . Vgpu is at 1.40V idle / 1.45v full load . I can bench at 950/1080Mhz everything . I haven't tried much , cause my proper benchmarks will be with both CPU & GPU in my singlestages( when i get some time though)
Yesterday i put some heatsinks at the voltage regulators (they were very very hot) ... no time to check for gains .

Hmmm ok now i don't understand
Why do u need to do Vmem mod and lower voltage?

[STEvil]

zues - stock cooling?

I was running 850/2125/1000 (havent worked on mem a lot yet) with 1.35v idle on my XFX 8800GTS but got random game crashes after periods of time. I could run the shaders up to 2250 at that voltage but got artifacts

[Zeus]

zues - stock cooling?

I was running 850/2125/1000 (havent worked on mem a lot yet) with 1.35v idle on my XFX 8800GTS but got random game crashes after periods of time. I could run the shaders up to 2250 at that voltage but got artifacts

Yup, stockcooler but fan @ full throttle, loud as h3ll.

[gOtVoltage]

I don't know that pump but if it's very weak it might help to replace it.

You can try some more powerfull fans on the rad.

How's the contact with the block and what thermal compound did you use?

Also, a cooler ambient helps.

Today i ran 3d mark 01 and 06 at 1.35Vgpu with the stock cooler at 881 core 2125 shaders and 1130 memory, so that's looking good.

Aiming for 900/2200/1150 with watercooloing though.

Im testing another new GTS..after selling my 907mhz Aircooled card to nieghbor!

This one does 950//2302//2250mhz so far with normal water and 1.44Vgpu..

Working out bugs with my M2N32 deluxe ...The Bios seems to be bugged with HT and Multi problems..But i managed to get this new 1 Day old card up to par

[aussie-revhead]

Nice , much better than mine , shame your AMD will hold back your score , what was your score by the way ? ( you covered it )

[dinos22]

hey revhead
man you gotta do some mods for me i like your work there

[aussie-revhead]

Thanks Dino , I like to make things and make them nice .

Do you want my GTS ? Im bored with it already .... I need a better cpu . Im looking forward to trying a q9450 and a G100 , but thats down the track a bit.

[dinos22]

Thanks Dino , I like to make things and make them nice .

Do you want my GTS ? Im bored with it already .... I need a better cpu . Im looking forward to trying a q9450 and a G100 , but thats down the track a bit.

PM me da price

[Zeus]

OMG, 950/2300 and even good mem clocks! Did you manage to finish 3d mark at those speeds?

What does your coolong look like?

[cole2109]

GPU 1.3V (load) game stable for now...
Accelero + 120mm

[gOtVoltage]

OMG, 950/2300 and even good mem clocks! Did you manage to finish 3d mark at those speeds?

What does your coolong look like?

My 3Dmark06 suffers from my X2...I got stuck on the 1603bios which hampered my results by 1000+ points and even with stock clocks on the Card it will do this...

So i may get a Phenom pretty soon, although im holding out for a B3version!

Im still tweaking Mobo ...My best 3dmark06 was 13128+ with 2800HT on the 1201bios @907//2160//2250,, but im now limited to 2500 and high Multis with the 1603bios.

My bench with 950 The FPS are Nice ..My CPU used to score 2700+ but new bios has me under 2650! The bios really afects the score bad..Trust me its not the High Oc on card..It scores lower than the 1201 even with stock card clocks...

[T_M]

For anyone that missed it, yantronic over at VRZone has posted the OCP mod.
I have not tested it but will soon.

"To castrate the overcurrent protection, get rid of the three resistors marked with "78X" on them"

http://sg.vr-zone.com/articles/XFX_8...re/5462-3.html

[Zeus]

For anyone that missed it, yantronic over at VRZone has posted the OCP mod.
I have not tested it but will soon.

"To castrate the overcurrent protection, get rid of the three resistors marked with "78X" on them"

http://sg.vr-zone.com/articles/XFX_8...re/5462-3.html

Thanks for the heads up, did you try it yet?

That added cap looks huge!

[Lastviking]

Nice scores...

It will be funy to se how much my old 939 with bh5 ddr1 will score with 8800 gts when i get it on monday

[aussie-revhead]

What does this mean guys ? I made a large change to my fan arrangement on my radiators but I still cant lean on it with any more than 1.4vgpu is it either has a graphical lockup or gives the error shown in the screenie

Im still nudging 17800 area but I want to crack an 18k score , then I can game in peace .

[aussie-revhead]

I don't know that pump but if it's very weak it might help to replace it.

You can try some more powerfull fans on the rad.

How's the contact with the block and what thermal compound did you use?

Also, a cooler ambient helps.

Today i ran 3d mark 01 and 06 at 1.35Vgpu with the stock cooler at 881 core 2125 shaders and 1130 memory, so that's looking good.

Aiming for 900/2200/1150 with watercooloing though.

I did a test run on the EK block to test contact and it seemed nice to me . I used Arctic Silver. I changed from one huge fan to 9x120 fans , but its still pretty much the same . The case is stuck under my desk and it tends to build up heat under there even with the a/c on , so Im sure this would help too .

T_M I tested vgpu-rise under load and at 1.3 static I get 1.35 under load , while 1.5 tops out at 1.58v . I think the dreaded 50 degree limit is costing me progress.

[VoRtAn_MaDgE]

T_M I tested vgpu-rise under load and at 1.3 static I get 1.35 under load , while 1.5 tops out at 1.58v . I think the dreaded 50 degree limit is costing me progress.

I'm having the same issue...

Almost almost making a 06 run at 910 core but temp won't allow me...
very temp sensitive the core and the vrm's...improve cooling
Did you already noticed at what voltage you get the error (ocp maybe?)

[aussie-revhead]

I asked T_M the same thing but he sounds pretty sure its not OCP related. It seems that as soon as temp hits 50 degrees it dies , but why when it runs much hotter than this with the standard cooler and much lower clocks ?

Anyway its about at its limit in my current configuration . I Will have to wait and see what some extra cpu score does in a few weeks time .

[VoRtAn_MaDgE]

I asked T_M the same thing but he sounds pretty sure its not OCP related. It seems that as soon as temp hits 50 degrees it dies , but why when it runs much hotter than this with the standard cooler and much lower clocks ?

Anyway its about at its limit in my current configuration . I Will have to wait and see what some extra cpu score does in a few weeks time .

Dunno if it's all relative to the temp cuzz i can play with card oc'ed above 55ºC for example with 0 problems!

The load must be bigger in bench than in games so maybe that's the cause...

[jason4207]

For anyone that missed it, yantronic over at VRZone has posted the OCP mod.
I have not tested it but will soon.

"To castrate the overcurrent protection, get rid of the three resistors marked with "78X" on them"

http://sg.vr-zone.com/articles/XFX_8...re/5462-3.html

I was under the impression that doing the OCP mod on the GTS was kinda pointless unless you are going for very high volts (requiring exotic cooling). Does anyone have any info to the contrary?

Also, if you are going to do the OCP mod you should solder resistors in parallel to the caps, not remove resistors. I know removing them works, but it also upsets the phase balancing. Someone on here already killed a MOSFET doing it that way. Comments?

They are also increasing vmem in the article. I know that decreasing vmem works better on the GT, and I assume the same to be true on the GTS. Comments?

I do like the caps they added, though!